{"id":1136,"date":"2016-01-09T09:44:12","date_gmt":"2016-01-09T01:44:12","guid":{"rendered":"https:\/\/ai.zhousir.top\/?p=1136"},"modified":"2026-08-18T12:58:46","modified_gmt":"2026-08-18T04:58:46","slug":"android%e5%bf%ab%e9%80%9f%e5%bc%80%e5%8f%91%e7%b3%bb%e5%88%97-10%e4%b8%aa%e5%b8%b8%e7%94%a8%e5%b7%a5%e5%85%b7%e7%b1%bb","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=1136","title":{"rendered":"Android\u5feb\u901f\u5f00\u53d1\u7cfb\u5217 10\u4e2a\u5e38\u7528\u5de5\u5177\u7c7b"},"content":{"rendered":"
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\u6bcf\u4e2a Android \u9879\u76ee\u51e0\u4e4e\u90fd\u4f1a\u7528\u5230\u65e5\u5fd7\u3001Toast\u3001SharedPreferences\u3001\u5355\u4f4d\u6362\u7b97\u3001SD \u5361\u3001\u5c4f\u5e55\u3001App \u4fe1\u606f\u3001\u8f6f\u952e\u76d8\u3001\u7f51\u7edc\u548c Http \u8fd9\u51e0\u7c7b\u5de5\u5177\u3002\u4e0b\u6587\u5b8c\u6574\u6536\u5f55 10 \u4e2a\u5e38\u7528\u5de5\u5177\u7c7b\u7684\u5168\u90e8\u6e90\u7801\uff0c\u6309\u7c7b\u62c6\u5f00\uff0c\u53ef\u76f4\u63a5\u62f7\u8fdb\u5de5\u7a0b\u3002<\/p>\n<\/blockquote>\n

<\/p>\n

10\u4e2a\u57fa\u672c\u6bcf\u4e2a\u9879\u76ee\u4e2d\u90fd\u4f1a\u4f7f\u7528\u7684\u5de5\u5177\u7c7b\uff0c\u7528\u4e8e\u5feb\u901f\u5f00\u53d1~~<\/p>\n

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1\u3001\u65e5\u5fd7\u5de5\u5177\u7c7bL.java<\/span><\/h2>\n
package<\/span> com<\/span>.<\/span>zhy<\/span>.<\/span>utils<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\nimport<\/span> android<\/span>.<\/span>util<\/span>.<\/span>Log<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\/** <\/span><\/span>\n * Log\u7edf\u4e00\u7ba1\u7406\u7c7b <\/span><\/span>\n *\u00a0\u00a0<\/span><\/span>\n *\u00a0\u00a0<\/span><\/span>\n *\u00a0\u00a0<\/span><\/span>\n *\/<\/span>\u00a0\u00a0<\/span><\/span>\npublic<\/span> class<\/span> L<\/span>\u00a0\u00a0<\/span><\/span>\n{<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>private<\/span> L<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/* cannot be instantiated *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>throw<\/span> new<\/span> UnsupportedOperationException<\/span>(<\/span>\"cannot be instantiated\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> boolean<\/span> isDebug<\/span> =<\/span> true<\/span>;<\/span>\/\/ \u662f\u5426\u9700\u8981\u6253\u5370bug\uff0c\u53ef\u4ee5\u5728application\u7684onCreate\u51fd\u6570\u91cc\u9762\u521d\u59cb\u5316\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>private<\/span> static<\/span> final<\/span> String<\/span> TAG<\/span> =<\/span> \"way\"<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0<\/span>\/\/ \u4e0b\u9762\u56db\u4e2a\u662f\u9ed8\u8ba4tag\u7684\u51fd\u6570\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> i<\/span>(<\/span>String<\/span> msg<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>isDebug<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Log<\/span>.<\/span>i<\/span>(<\/span>TAG<\/span>,<\/span> msg<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> d<\/span>(<\/span>String<\/span> msg<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>isDebug<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Log<\/span>.<\/span>d<\/span>(<\/span>TAG<\/span>,<\/span> msg<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> e<\/span>(<\/span>String<\/span> msg<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>isDebug<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Log<\/span>.<\/span>e<\/span>(<\/span>TAG<\/span>,<\/span> msg<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> v<\/span>(<\/span>String<\/span> msg<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>isDebug<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Log<\/span>.<\/span>v<\/span>(<\/span>TAG<\/span>,<\/span> msg<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\/\/ \u4e0b\u9762\u662f\u4f20\u5165\u81ea\u5b9a\u4e49tag\u7684\u51fd\u6570\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> i<\/span>(<\/span>String<\/span> tag<\/span>,<\/span> String<\/span> msg<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>isDebug<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Log<\/span>.<\/span>i<\/span>(<\/span>tag<\/span>,<\/span> msg<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> d<\/span>(<\/span>String<\/span> tag<\/span>,<\/span> String<\/span> msg<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>isDebug<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Log<\/span>.<\/span>i<\/span>(<\/span>tag<\/span>,<\/span> msg<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> e<\/span>(<\/span>String<\/span> tag<\/span>,<\/span> String<\/span> msg<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>isDebug<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Log<\/span>.<\/span>i<\/span>(<\/span>tag<\/span>,<\/span> msg<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> v<\/span>(<\/span>String<\/span> tag<\/span>,<\/span> String<\/span> msg<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>isDebug<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Log<\/span>.<\/span>i<\/span>(<\/span>tag<\/span>,<\/span> msg<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n}<\/span><\/span><\/code><\/pre>\n
\u7f51\u4e0a\u770b\u5230\u7684\u7c7b\uff0c\u6ce8\u91ca\u4e0a\u5e94\u8be5\u539f\u521b\u4f5c\u8005\u7684\u540d\u5b57\uff0c\u5f88\u7b80\u5355\u7684\u4e00\u4e2a\u7c7b\uff1b\u7f51\u4e0a\u4e5f\u6709\u5f88\u591a\u63d0\u4f9b\u628a\u65e5\u5fd7\u8bb0\u5f55\u5230SDCard\u4e0a\u7684\uff0c\u4e0d\u8fc7\u6211\u662f\u4ece\u6765\u6ca1\u8bb0\u5f55\u8fc7\uff0c\u6240\u4ee5\u5f15\u5165\u4e2a\u6700\u7b80\u5355\u7684\uff0c\u5927\u5bb6\u53ef\u4ee5\u8fdb\u884c\u8bc4\u4ef7\u662f\u5426\u9700\u8981\u6269\u5145~~<\/p>\n
\n
2\u3001Toast\u7edf\u4e00\u7ba1\u7406\u7c7b<\/span><\/h2>\n
package<\/span> com<\/span>.<\/span>zhy<\/span>.<\/span>utils<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\nimport<\/span> android<\/span>.<\/span>content<\/span>.<\/span>Context<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\nimport<\/span> android<\/span>.<\/span>widget<\/span>.<\/span>Toast<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\/** <\/span><\/span>\n * Toast\u7edf\u4e00\u7ba1\u7406\u7c7b <\/span><\/span>\n *\u00a0\u00a0<\/span><\/span>\n *\/<\/span>\u00a0\u00a0<\/span><\/span>\npublic<\/span> class<\/span> T<\/span>\u00a0\u00a0<\/span><\/span>\n{<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>private<\/span> T<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** cannot be instantiated**\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>throw<\/span> new<\/span> UnsupportedOperationException<\/span>(<\/span>\"cannot be instantiated\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> boolean<\/span> isShow<\/span> =<\/span> true<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u77ed\u65f6\u95f4\u663e\u793aToast <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param message <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> showShort<\/span>(<\/span>Context <\/span>context<\/span>,<\/span> CharSequence <\/span>message<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>isShow<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Toast<\/span>.<\/span>makeText<\/span>(<\/span>context<\/span>,<\/span> message<\/span>,<\/span> Toast<\/span>.<\/span>LENGTH_SHORT<\/span>)<\/span>.<\/span>show<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u77ed\u65f6\u95f4\u663e\u793aToast <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param message <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> showShort<\/span>(<\/span>Context <\/span>context<\/span>,<\/span> int<\/span> message<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>isShow<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Toast<\/span>.<\/span>makeText<\/span>(<\/span>context<\/span>,<\/span> message<\/span>,<\/span> Toast<\/span>.<\/span>LENGTH_SHORT<\/span>)<\/span>.<\/span>show<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u957f\u65f6\u95f4\u663e\u793aToast <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param message <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> showLong<\/span>(<\/span>Context <\/span>context<\/span>,<\/span> CharSequence <\/span>message<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>isShow<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Toast<\/span>.<\/span>makeText<\/span>(<\/span>context<\/span>,<\/span> message<\/span>,<\/span> Toast<\/span>.<\/span>LENGTH_LONG<\/span>)<\/span>.<\/span>show<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u957f\u65f6\u95f4\u663e\u793aToast <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param message <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> showLong<\/span>(<\/span>Context <\/span>context<\/span>,<\/span> int<\/span> message<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>isShow<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Toast<\/span>.<\/span>makeText<\/span>(<\/span>context<\/span>,<\/span> message<\/span>,<\/span> Toast<\/span>.<\/span>LENGTH_LONG<\/span>)<\/span>.<\/span>show<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u81ea\u5b9a\u4e49\u663e\u793aToast\u65f6\u95f4 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param message <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param duration <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> show<\/span>(<\/span>Context <\/span>context<\/span>,<\/span> CharSequence <\/span>message<\/span>,<\/span> int<\/span> duration<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>isShow<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Toast<\/span>.<\/span>makeText<\/span>(<\/span>context<\/span>,<\/span> message<\/span>,<\/span> duration<\/span>)<\/span>.<\/span>show<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u81ea\u5b9a\u4e49\u663e\u793aToast\u65f6\u95f4 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param message <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param duration <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> show<\/span>(<\/span>Context <\/span>context<\/span>,<\/span> int<\/span> message<\/span>,<\/span> int<\/span> duration<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>isShow<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Toast<\/span>.<\/span>makeText<\/span>(<\/span>context<\/span>,<\/span> message<\/span>,<\/span> duration<\/span>)<\/span>.<\/span>show<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n}<\/span><\/span><\/code><\/pre>\n
\u4e5f\u662f\u975e\u5e38\u7b80\u5355\u7684\u4e00\u4e2a\u5c01\u88c5\uff0c\u80fd\u7701\u5219\u7701\u4e86~~<\/p>\n
\n
3\u3001SharedPreferences\u5c01\u88c5\u7c7bSPUtils<\/span><\/h2>\n
package<\/span> com<\/span>.<\/span>zhy<\/span>.<\/span>utils<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\nimport<\/span> java<\/span>.<\/span>lang<\/span>.<\/span>reflect<\/span>.<\/span>InvocationTargetException<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\nimport<\/span> java<\/span>.<\/span>lang<\/span>.<\/span>reflect<\/span>.<\/span>Method<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\nimport<\/span> java<\/span>.<\/span>util<\/span>.<\/span>Map<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\nimport<\/span> android<\/span>.<\/span>content<\/span>.<\/span>Context<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\nimport<\/span> android<\/span>.<\/span>content<\/span>.<\/span>SharedPreferences<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\npublic<\/span> class<\/span> SPUtils<\/span>\u00a0\u00a0<\/span><\/span>\n{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u4fdd\u5b58\u5728\u624b\u673a\u91cc\u9762\u7684\u6587\u4ef6\u540d <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> final<\/span> String<\/span> FILE_NAME<\/span> =<\/span> \"share_data\"<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u4fdd\u5b58\u6570\u636e\u7684\u65b9\u6cd5\uff0c\u6211\u4eec\u9700\u8981\u62ff\u5230\u4fdd\u5b58\u6570\u636e\u7684\u5177\u4f53\u7c7b\u578b\uff0c\u7136\u540e\u6839\u636e\u7c7b\u578b\u8c03\u7528\u4e0d\u540c\u7684\u4fdd\u5b58\u65b9\u6cd5 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param key <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param object <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> put<\/span>(<\/span>Context <\/span>context<\/span>,<\/span> String<\/span> key<\/span>,<\/span> Object<\/span> object<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>SharedPreferences <\/span>sp<\/span> =<\/span> context<\/span>.<\/span>getSharedPreferences<\/span>(<\/span>FILE_NAME<\/span>,<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Context<\/span>.<\/span>MODE_PRIVATE<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>SharedPreferences<\/span>.<\/span>Editor <\/span>editor<\/span> =<\/span> sp<\/span>.<\/span>edit<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>object<\/span> instanceof<\/span> String<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>editor<\/span>.<\/span>putString<\/span>(<\/span>key<\/span>,<\/span> (<\/span>String<\/span>)<\/span> object<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> else<\/span> if<\/span> (<\/span>object<\/span> instanceof<\/span> Integer<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>editor<\/span>.<\/span>putInt<\/span>(<\/span>key<\/span>,<\/span> (<\/span>Integer<\/span>)<\/span> object<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> else<\/span> if<\/span> (<\/span>object<\/span> instanceof<\/span> Boolean<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>editor<\/span>.<\/span>putBoolean<\/span>(<\/span>key<\/span>,<\/span> (<\/span>Boolean<\/span>)<\/span> object<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> else<\/span> if<\/span> (<\/span>object<\/span> instanceof<\/span> Float<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>editor<\/span>.<\/span>putFloat<\/span>(<\/span>key<\/span>,<\/span> (<\/span>Float<\/span>)<\/span> object<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> else<\/span> if<\/span> (<\/span>object<\/span> instanceof<\/span> Long<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>editor<\/span>.<\/span>putLong<\/span>(<\/span>key<\/span>,<\/span> (<\/span>Long<\/span>)<\/span> object<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> else<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>editor<\/span>.<\/span>putString<\/span>(<\/span>key<\/span>,<\/span> object<\/span>.<\/span>toString<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>SharedPreferencesCompat<\/span>.<\/span>apply<\/span>(<\/span>editor<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u5f97\u5230\u4fdd\u5b58\u6570\u636e\u7684\u65b9\u6cd5\uff0c\u6211\u4eec\u6839\u636e\u9ed8\u8ba4\u503c\u5f97\u5230\u4fdd\u5b58\u7684\u6570\u636e\u7684\u5177\u4f53\u7c7b\u578b\uff0c\u7136\u540e\u8c03\u7528\u76f8\u5bf9\u4e8e\u7684\u65b9\u6cd5\u83b7\u53d6\u503c <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param key <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param defaultObject <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> Object<\/span> get<\/span>(<\/span>Context <\/span>context<\/span>,<\/span> String<\/span> key<\/span>,<\/span> Object<\/span> defaultObject<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>SharedPreferences <\/span>sp<\/span> =<\/span> context<\/span>.<\/span>getSharedPreferences<\/span>(<\/span>FILE_NAME<\/span>,<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Context<\/span>.<\/span>MODE_PRIVATE<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>defaultObject <\/span>instanceof<\/span> String<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> sp<\/span>.<\/span>getString<\/span>(<\/span>key<\/span>,<\/span> (<\/span>String<\/span>)<\/span> defaultObject<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> else<\/span> if<\/span> (<\/span>defaultObject <\/span>instanceof<\/span> Integer<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> sp<\/span>.<\/span>getInt<\/span>(<\/span>key<\/span>,<\/span> (<\/span>Integer<\/span>)<\/span> defaultObject<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> else<\/span> if<\/span> (<\/span>defaultObject <\/span>instanceof<\/span> Boolean<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> sp<\/span>.<\/span>getBoolean<\/span>(<\/span>key<\/span>,<\/span> (<\/span>Boolean<\/span>)<\/span> defaultObject<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> else<\/span> if<\/span> (<\/span>defaultObject <\/span>instanceof<\/span> Float<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> sp<\/span>.<\/span>getFloat<\/span>(<\/span>key<\/span>,<\/span> (<\/span>Float<\/span>)<\/span> defaultObject<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> else<\/span> if<\/span> (<\/span>defaultObject <\/span>instanceof<\/span> Long<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> sp<\/span>.<\/span>getLong<\/span>(<\/span>key<\/span>,<\/span> (<\/span>Long<\/span>)<\/span> defaultObject<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> null<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u79fb\u9664\u67d0\u4e2akey\u503c\u5df2\u7ecf\u5bf9\u5e94\u7684\u503c <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param key <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> remove<\/span>(<\/span>Context <\/span>context<\/span>,<\/span> String<\/span> key<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>SharedPreferences <\/span>sp<\/span> =<\/span> context<\/span>.<\/span>getSharedPreferences<\/span>(<\/span>FILE_NAME<\/span>,<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Context<\/span>.<\/span>MODE_PRIVATE<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>SharedPreferences<\/span>.<\/span>Editor <\/span>editor<\/span> =<\/span> sp<\/span>.<\/span>edit<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>editor<\/span>.<\/span>remove<\/span>(<\/span>key<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>SharedPreferencesCompat<\/span>.<\/span>apply<\/span>(<\/span>editor<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u6e05\u9664\u6240\u6709\u6570\u636e <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> clear<\/span>(<\/span>Context <\/span>context<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>SharedPreferences <\/span>sp<\/span> =<\/span> context<\/span>.<\/span>getSharedPreferences<\/span>(<\/span>FILE_NAME<\/span>,<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Context<\/span>.<\/span>MODE_PRIVATE<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>SharedPreferences<\/span>.<\/span>Editor <\/span>editor<\/span> =<\/span> sp<\/span>.<\/span>edit<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>editor<\/span>.<\/span>clear<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>SharedPreferencesCompat<\/span>.<\/span>apply<\/span>(<\/span>editor<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u67e5\u8be2\u67d0\u4e2akey\u662f\u5426\u5df2\u7ecf\u5b58\u5728 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param key <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> boolean<\/span> contains<\/span>(<\/span>Context <\/span>context<\/span>,<\/span> String<\/span> key<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>SharedPreferences <\/span>sp<\/span> =<\/span> context<\/span>.<\/span>getSharedPreferences<\/span>(<\/span>FILE_NAME<\/span>,<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Context<\/span>.<\/span>MODE_PRIVATE<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> sp<\/span>.<\/span>contains<\/span>(<\/span>key<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u8fd4\u56de\u6240\u6709\u7684\u952e\u503c\u5bf9 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> Map<\/span><<\/span>String<\/span>,<\/span> ?<\/span>><\/span> getAll<\/span>(<\/span>Context <\/span>context<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>SharedPreferences <\/span>sp<\/span> =<\/span> context<\/span>.<\/span>getSharedPreferences<\/span>(<\/span>FILE_NAME<\/span>,<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Context<\/span>.<\/span>MODE_PRIVATE<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> sp<\/span>.<\/span>getAll<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u521b\u5efa\u4e00\u4e2a\u89e3\u51b3SharedPreferencesCompat.apply\u65b9\u6cd5\u7684\u4e00\u4e2a\u517c\u5bb9\u7c7b <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @author zhy <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>private<\/span> static<\/span> class<\/span> SharedPreferencesCompat<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>private<\/span> static<\/span> final<\/span> Method <\/span>sApplyMethod<\/span> =<\/span> findApplyMethod<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u53cd\u5c04\u67e5\u627eapply\u7684\u65b9\u6cd5 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>@SuppressWarnings<\/span>(<\/span>{<\/span> \"unchecked\"<\/span>,<\/span> \"rawtypes\"<\/span> }<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>private<\/span> static<\/span> Method <\/span>findApplyMethod<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>try<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Class<\/span> clz<\/span> =<\/span> SharedPreferences<\/span>.<\/span>Editor<\/span>.<\/span>class<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> clz<\/span>.<\/span>getMethod<\/span>(<\/span>\"apply\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> catch<\/span> (<\/span>NoSuchMethodException<\/span> e<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> null<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u5982\u679c\u627e\u5230\u5219\u4f7f\u7528apply\u6267\u884c\uff0c\u5426\u5219\u4f7f\u7528commit <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param editor <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> apply<\/span>(<\/span>SharedPreferences<\/span>.<\/span>Editor <\/span>editor<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>try<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>sApplyMethod<\/span> !=<\/span> null<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>sApplyMethod<\/span>.<\/span>invoke<\/span>(<\/span>editor<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> catch<\/span> (<\/span>IllegalArgumentException<\/span> e<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> catch<\/span> (<\/span>IllegalAccessException<\/span> e<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> catch<\/span> (<\/span>InvocationTargetException<\/span> e<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>editor<\/span>.<\/span>commit<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n}<\/span><\/span><\/code><\/pre>\n
\u5bf9SharedPreference\u7684\u4f7f\u7528\u505a\u4e86\u5efa\u8bae\u7684\u5c01\u88c5\uff0c\u5bf9\u5916\u516c\u5e03\u51faput\uff0cget\uff0cremove\uff0cclear\u7b49\u7b49\u65b9\u6cd5\uff1b<\/p>\n
\u6ce8\u610f\u4e00\u70b9\uff0c\u91cc\u9762\u6240\u6709\u7684commit\u64cd\u4f5c\u4f7f\u7528\u4e86SharedPreferencesCompat.apply\u8fdb\u884c\u4e86\u66ff\u4ee3\uff0c\u76ee\u7684\u662f\u5c3d\u53ef\u80fd\u7684\u4f7f\u7528apply\u4ee3\u66ffcommit<\/p>\n
\u9996\u5148\u8bf4\u4e0b\u4e3a\u4ec0\u4e48\uff0c\u56e0\u4e3acommit\u65b9\u6cd5\u662f\u540c\u6b65\u7684\uff0c\u5e76\u4e14\u6211\u4eec\u5f88\u591a\u65f6\u5019\u7684commit\u64cd\u4f5c\u90fd\u662fUI\u7ebf\u7a0b\u4e2d\uff0c\u6bd5\u7adf\u662fIO\u64cd\u4f5c\uff0c\u5c3d\u53ef\u80fd\u5f02\u6b65\uff1b<\/p>\n
\u6240\u4ee5\u6211\u4eec\u4f7f\u7528apply\u8fdb\u884c\u66ff\u4ee3\uff0capply\u5f02\u6b65\u7684\u8fdb\u884c\u5199\u5165\uff1b<\/p>\n
\u4f46\u662fapply\u76f8\u5f53\u4e8ecommit\u6765\u8bf4\u662fnew API\u5462\uff0c\u4e3a\u4e86\u66f4\u597d\u7684\u517c\u5bb9\uff0c\u6211\u4eec\u505a\u4e86\u9002\u914d\uff1b<\/p>\n
SharedPreferencesCompat\u4e5f\u53ef\u4ee5\u7ed9\u5927\u5bb6\u521b\u5efa\u517c\u5bb9\u7c7b\u63d0\u4f9b\u4e86\u4e00\u5b9a\u7684\u53c2\u8003~~<\/p>\n
\n
4\u3001\u5355\u4f4d\u8f6c\u6362\u7c7b DensityUtils<\/span><\/h2>\n
\u00a0\u00a0\u00a0\u00a0<\/span>package<\/span> com<\/span>.<\/span>zhy<\/span>.<\/span>utils<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>content<\/span>.<\/span>Context<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>util<\/span>.<\/span>TypedValue<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u5e38\u7528\u5355\u4f4d\u8f6c\u6362\u7684\u8f85\u52a9\u7c7b <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> class<\/span> DensityUtils<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>private<\/span> DensityUtils<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** cannot be instantiated **\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>throw<\/span> new<\/span> UnsupportedOperationException<\/span>(<\/span>\"cannot be instantiated\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * dp\u8f6cpx <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param val <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span>public<\/span> static<\/span> int<\/span> dp2px<\/span>(<\/span>Context <\/span>context<\/span>,<\/span> float<\/span> dpVal<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> (<\/span>int<\/span>)<\/span> TypedValue<\/span>.<\/span>applyDimension<\/span>(<\/span>TypedValue<\/span>.<\/span>COMPLEX_UNIT_DIP<\/span>,<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>dpVal<\/span>,<\/span> context<\/span>.<\/span>getResources<\/span>(<\/span>)<\/span>.<\/span>getDisplayMetrics<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * sp\u8f6cpx <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param val <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> int<\/span> sp2px<\/span>(<\/span>Context <\/span>context<\/span>,<\/span> float<\/span> spVal<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> (<\/span>int<\/span>)<\/span> TypedValue<\/span>.<\/span>applyDimension<\/span>(<\/span>TypedValue<\/span>.<\/span>COMPLEX_UNIT_SP<\/span>,<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>spVal<\/span>,<\/span> context<\/span>.<\/span>getResources<\/span>(<\/span>)<\/span>.<\/span>getDisplayMetrics<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * px\u8f6cdp <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param pxVal <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> float<\/span> px2dp<\/span>(<\/span>Context <\/span>context<\/span>,<\/span> float<\/span> pxVal<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>final<\/span> float<\/span> scale<\/span> =<\/span> context<\/span>.<\/span>getResources<\/span>(<\/span>)<\/span>.<\/span>getDisplayMetrics<\/span>(<\/span>)<\/span>.<\/span>density<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> (<\/span>pxVal<\/span> \/<\/span> scale<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * px\u8f6csp <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param fontScale <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param pxVal <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> float<\/span> px2sp<\/span>(<\/span>Context <\/span>context<\/span>,<\/span> float<\/span> pxVal<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> (<\/span>pxVal<\/span> \/<\/span> context<\/span>.<\/span>getResources<\/span>(<\/span>)<\/span>.<\/span>getDisplayMetrics<\/span>(<\/span>)<\/span>.<\/span>scaledDensity<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span><\/span><\/code><\/pre>\n
\n
5\u3001SD\u5361\u76f8\u5173\u8f85\u52a9\u7c7b SDCardUtils<\/span><\/h2>\n
package<\/span> com<\/span>.<\/span>zhy<\/span>.<\/span>utils<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\nimport<\/span> java<\/span>.<\/span>io<\/span>.<\/span>File<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\nimport<\/span> android<\/span>.<\/span>os<\/span>.<\/span>Environment<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\nimport<\/span> android<\/span>.<\/span>os<\/span>.<\/span>StatFs<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\/** <\/span><\/span>\n * SD\u5361\u76f8\u5173\u7684\u8f85\u52a9\u7c7b <\/span><\/span>\n *\u00a0\u00a0<\/span><\/span>\n *\u00a0\u00a0<\/span><\/span>\n *\u00a0\u00a0<\/span><\/span>\n *\/<\/span>\u00a0\u00a0<\/span><\/span>\npublic<\/span> class<\/span> SDCardUtils<\/span>\u00a0\u00a0<\/span><\/span>\n{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>private<\/span> SDCardUtils<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** cannot be instantiated **\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>throw<\/span> new<\/span> UnsupportedOperationException<\/span>(<\/span>\"cannot be instantiated\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u5224\u65adSDCard\u662f\u5426\u53ef\u7528 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> boolean<\/span> isSDCardEnable<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> Environment<\/span>.<\/span>getExternalStorageState<\/span>(<\/span>)<\/span>.<\/span>equals<\/span>(<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Environment<\/span>.<\/span>MEDIA_MOUNTED<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u83b7\u53d6SD\u5361\u8def\u5f84 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> String<\/span> getSDCardPath<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> Environment<\/span>.<\/span>getExternalStorageDirectory<\/span>(<\/span>)<\/span>.<\/span>getAbsolutePath<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>+<\/span> File<\/span>.<\/span>separator<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u83b7\u53d6SD\u5361\u7684\u5269\u4f59\u5bb9\u91cf \u5355\u4f4dbyte <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> long<\/span> getSDCardAllSize<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>isSDCardEnable<\/span>(<\/span>)<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>StatFs <\/span>stat<\/span> =<\/span> new<\/span> StatFs<\/span>(<\/span>getSDCardPath<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/\/ \u83b7\u53d6\u7a7a\u95f2\u7684\u6570\u636e\u5757\u7684\u6570\u91cf\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>long<\/span> availableBlocks<\/span> =<\/span> (<\/span>long<\/span>)<\/span> stat<\/span>.<\/span>getAvailableBlocks<\/span>(<\/span>)<\/span> -<\/span> 4<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/\/ \u83b7\u53d6\u5355\u4e2a\u6570\u636e\u5757\u7684\u5927\u5c0f\uff08byte\uff09\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>long<\/span> freeBlocks<\/span> =<\/span> stat<\/span>.<\/span>getAvailableBlocks<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> freeBlocks<\/span> *<\/span> availableBlocks<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> 0<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u83b7\u53d6\u6307\u5b9a\u8def\u5f84\u6240\u5728\u7a7a\u95f4\u7684\u5269\u4f59\u53ef\u7528\u5bb9\u91cf\u5b57\u8282\u6570\uff0c\u5355\u4f4dbyte <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @param filePath <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @return \u5bb9\u91cf\u5b57\u8282 SDCard\u53ef\u7528\u7a7a\u95f4\uff0c\u5185\u90e8\u5b58\u50a8\u53ef\u7528\u7a7a\u95f4 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> long<\/span> getFreeBytes<\/span>(<\/span>String<\/span> filePath<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/\/ \u5982\u679c\u662fsd\u5361\u7684\u4e0b\u7684\u8def\u5f84\uff0c\u5219\u83b7\u53d6sd\u5361\u53ef\u7528\u5bb9\u91cf\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>filePath<\/span>.<\/span>startsWith<\/span>(<\/span>getSDCardPath<\/span>(<\/span>)<\/span>)<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>filePath<\/span> =<\/span> getSDCardPath<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> else<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\/\/ \u5982\u679c\u662f\u5185\u90e8\u5b58\u50a8\u7684\u8def\u5f84\uff0c\u5219\u83b7\u53d6\u5185\u5b58\u5b58\u50a8\u7684\u53ef\u7528\u5bb9\u91cf\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>filePath<\/span> =<\/span> Environment<\/span>.<\/span>getDataDirectory<\/span>(<\/span>)<\/span>.<\/span>getAbsolutePath<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>StatFs <\/span>stat<\/span> =<\/span> new<\/span> StatFs<\/span>(<\/span>filePath<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>long<\/span> availableBlocks<\/span> =<\/span> (<\/span>long<\/span>)<\/span> stat<\/span>.<\/span>getAvailableBlocks<\/span>(<\/span>)<\/span> -<\/span> 4<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> stat<\/span>.<\/span>getBlockSize<\/span>(<\/span>)<\/span> *<\/span> availableBlocks<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u83b7\u53d6\u7cfb\u7edf\u5b58\u50a8\u8def\u5f84 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> String<\/span> getRootDirectoryPath<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> Environment<\/span>.<\/span>getRootDirectory<\/span>(<\/span>)<\/span>.<\/span>getAbsolutePath<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n}<\/span><\/span><\/code><\/pre>\n
\n
6\u3001\u5c4f\u5e55\u76f8\u5173\u8f85\u52a9\u7c7b ScreenUtils<\/span><\/h2>\n
\u00a0\u00a0\u00a0\u00a0<\/span>package<\/span> com<\/span>.<\/span>zhy<\/span>.<\/span>utils<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>app<\/span>.<\/span>Activity<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>content<\/span>.<\/span>Context<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>graphics<\/span>.<\/span>Bitmap<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>graphics<\/span>.<\/span>Rect<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>util<\/span>.<\/span>DisplayMetrics<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>view<\/span>.<\/span>View<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>view<\/span>.<\/span>WindowManager<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u83b7\u5f97\u5c4f\u5e55\u76f8\u5173\u7684\u8f85\u52a9\u7c7b <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> class<\/span> ScreenUtils<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>private<\/span> ScreenUtils<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** cannot be instantiated **\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>throw<\/span> new<\/span> UnsupportedOperationException<\/span>(<\/span>\"cannot be instantiated\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u83b7\u5f97\u5c4f\u5e55\u9ad8\u5ea6 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> int<\/span> getScreenWidth<\/span>(<\/span>Context <\/span>context<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>WindowManager <\/span>wm<\/span> =<\/span> (<\/span>WindowManager<\/span>)<\/span> context<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>.<\/span>getSystemService<\/span>(<\/span>Context<\/span>.<\/span>WINDOW_SERVICE<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>DisplayMetrics <\/span>outMetrics<\/span> =<\/span> new<\/span> DisplayMetrics<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>wm<\/span>.<\/span>getDefaultDisplay<\/span>(<\/span>)<\/span>.<\/span>getMetrics<\/span>(<\/span>outMetrics<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> outMetrics<\/span>.<\/span>widthPixels<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u83b7\u5f97\u5c4f\u5e55\u5bbd\u5ea6 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> int<\/span> getScreenHeight<\/span>(<\/span>Context <\/span>context<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>WindowManager <\/span>wm<\/span> =<\/span> (<\/span>WindowManager<\/span>)<\/span> context<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>.<\/span>getSystemService<\/span>(<\/span>Context<\/span>.<\/span>WINDOW_SERVICE<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>DisplayMetrics <\/span>outMetrics<\/span> =<\/span> new<\/span> DisplayMetrics<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>wm<\/span>.<\/span>getDefaultDisplay<\/span>(<\/span>)<\/span>.<\/span>getMetrics<\/span>(<\/span>outMetrics<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> outMetrics<\/span>.<\/span>heightPixels<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u83b7\u5f97\u72b6\u6001\u680f\u7684\u9ad8\u5ea6 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> int<\/span> getStatusHeight<\/span>(<\/span>Context <\/span>context<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>int<\/span> statusHeight<\/span> =<\/span> -<\/span>1<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>try<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Class<\/span><<\/span>?<\/span>><\/span> clazz<\/span> =<\/span> Class<\/span>.<\/span>forName<\/span>(<\/span>\"com.android.internal.R$dimen\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Object<\/span> object<\/span> =<\/span> clazz<\/span>.<\/span>newInstance<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>int<\/span> height<\/span> =<\/span> Integer<\/span>.<\/span>parseInt<\/span>(<\/span>clazz<\/span>.<\/span>getField<\/span>(<\/span>\"status_bar_height\"<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>.<\/span>get<\/span>(<\/span>object<\/span>)<\/span>.<\/span>toString<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>statusHeight<\/span> =<\/span> context<\/span>.<\/span>getResources<\/span>(<\/span>)<\/span>.<\/span>getDimensionPixelSize<\/span>(<\/span>height<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> catch<\/span> (<\/span>Exception<\/span> e<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>e<\/span>.<\/span>printStackTrace<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> statusHeight<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u83b7\u53d6\u5f53\u524d\u5c4f\u5e55\u622a\u56fe\uff0c\u5305\u542b\u72b6\u6001\u680f <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param activity <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> Bitmap <\/span>snapShotWithStatusBar<\/span>(<\/span>Activity <\/span>activity<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>View <\/span>view<\/span> =<\/span> activity<\/span>.<\/span>getWindow<\/span>(<\/span>)<\/span>.<\/span>getDecorView<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>view<\/span>.<\/span>setDrawingCacheEnabled<\/span>(<\/span>true<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>view<\/span>.<\/span>buildDrawingCache<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Bitmap <\/span>bmp<\/span> =<\/span> view<\/span>.<\/span>getDrawingCache<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>int<\/span> width<\/span> =<\/span> getScreenWidth<\/span>(<\/span>activity<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>int<\/span> height<\/span> =<\/span> getScreenHeight<\/span>(<\/span>activity<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Bitmap <\/span>bp<\/span> =<\/span> null<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>bp<\/span> =<\/span> Bitmap<\/span>.<\/span>createBitmap<\/span>(<\/span>bmp<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> width<\/span>,<\/span> height<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>view<\/span>.<\/span>destroyDrawingCache<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> bp<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u83b7\u53d6\u5f53\u524d\u5c4f\u5e55\u622a\u56fe\uff0c\u4e0d\u5305\u542b\u72b6\u6001\u680f <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param activity <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> Bitmap <\/span>snapShotWithoutStatusBar<\/span>(<\/span>Activity <\/span>activity<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>View <\/span>view<\/span> =<\/span> activity<\/span>.<\/span>getWindow<\/span>(<\/span>)<\/span>.<\/span>getDecorView<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>view<\/span>.<\/span>setDrawingCacheEnabled<\/span>(<\/span>true<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>view<\/span>.<\/span>buildDrawingCache<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Bitmap <\/span>bmp<\/span> =<\/span> view<\/span>.<\/span>getDrawingCache<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Rect <\/span>frame<\/span> =<\/span> new<\/span> Rect<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>activity<\/span>.<\/span>getWindow<\/span>(<\/span>)<\/span>.<\/span>getDecorView<\/span>(<\/span>)<\/span>.<\/span>getWindowVisibleDisplayFrame<\/span>(<\/span>frame<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>int<\/span> statusBarHeight<\/span> =<\/span> frame<\/span>.<\/span>top<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>int<\/span> width<\/span> =<\/span> getScreenWidth<\/span>(<\/span>activity<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>int<\/span> height<\/span> =<\/span> getScreenHeight<\/span>(<\/span>activity<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Bitmap <\/span>bp<\/span> =<\/span> null<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>bp<\/span> =<\/span> Bitmap<\/span>.<\/span>createBitmap<\/span>(<\/span>bmp<\/span>,<\/span> 0<\/span>,<\/span> statusBarHeight<\/span>,<\/span> width<\/span>,<\/span> height<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>-<\/span> statusBarHeight<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>view<\/span>.<\/span>destroyDrawingCache<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> bp<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span><\/span><\/code><\/pre>\n
\n
7\u3001App\u76f8\u5173\u8f85\u52a9\u7c7b<\/span><\/h2>\n
\u00a0\u00a0\u00a0\u00a0<\/span>package<\/span> com<\/span>.<\/span>zhy<\/span>.<\/span>utils<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>content<\/span>.<\/span>Context<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>content<\/span>.<\/span>pm<\/span>.<\/span>PackageInfo<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>content<\/span>.<\/span>pm<\/span>.<\/span>PackageManager<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>content<\/span>.<\/span>pm<\/span>.<\/span>PackageManager<\/span>.<\/span>NameNotFoundException<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u8ddfApp\u76f8\u5173\u7684\u8f85\u52a9\u7c7b <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> class<\/span> AppUtils<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>private<\/span> AppUtils<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/**cannot be instantiated **\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>throw<\/span> new<\/span> UnsupportedOperationException<\/span>(<\/span>\"cannot be instantiated\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u83b7\u53d6\u5e94\u7528\u7a0b\u5e8f\u540d\u79f0 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> String<\/span> getAppName<\/span>(<\/span>Context <\/span>context<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>try<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>PackageManager <\/span>packageManager<\/span> =<\/span> context<\/span>.<\/span>getPackageManager<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>PackageInfo <\/span>packageInfo<\/span> =<\/span> packageManager<\/span>.<\/span>getPackageInfo<\/span>(<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>context<\/span>.<\/span>getPackageName<\/span>(<\/span>)<\/span>,<\/span> 0<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>int<\/span> labelRes<\/span> =<\/span> packageInfo<\/span>.<\/span>applicationInfo<\/span>.<\/span>labelRes<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> context<\/span>.<\/span>getResources<\/span>(<\/span>)<\/span>.<\/span>getString<\/span>(<\/span>labelRes<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> catch<\/span> (<\/span>NameNotFoundException<\/span> e<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>e<\/span>.<\/span>printStackTrace<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> null<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * [\u83b7\u53d6\u5e94\u7528\u7a0b\u5e8f\u7248\u672c\u540d\u79f0\u4fe1\u606f] <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @return \u5f53\u524d\u5e94\u7528\u7684\u7248\u672c\u540d\u79f0 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> String<\/span> getVersionName<\/span>(<\/span>Context <\/span>context<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>try<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>PackageManager <\/span>packageManager<\/span> =<\/span> context<\/span>.<\/span>getPackageManager<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>PackageInfo <\/span>packageInfo<\/span> =<\/span> packageManager<\/span>.<\/span>getPackageInfo<\/span>(<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>context<\/span>.<\/span>getPackageName<\/span>(<\/span>)<\/span>,<\/span> 0<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> packageInfo<\/span>.<\/span>versionName<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> catch<\/span> (<\/span>NameNotFoundException<\/span> e<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>e<\/span>.<\/span>printStackTrace<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> null<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span><\/span><\/code><\/pre>\n
\n
8\u3001\u8f6f\u952e\u76d8\u76f8\u5173\u8f85\u52a9\u7c7bKeyBoardUtils<\/span><\/h2>\n
\u00a0\u00a0\u00a0\u00a0<\/span>package<\/span> com<\/span>.<\/span>zhy<\/span>.<\/span>utils<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>content<\/span>.<\/span>Context<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>view<\/span>.<\/span>inputmethod<\/span>.<\/span>InputMethodManager<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>widget<\/span>.<\/span>EditText<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u6253\u5f00\u6216\u5173\u95ed\u8f6f\u952e\u76d8 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @author zhy <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> class<\/span> KeyBoardUtils<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u6253\u5361\u8f6f\u952e\u76d8 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param mEditText <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8f93\u5165\u6846 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param mContext <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e0a\u4e0b\u6587 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> openKeybord<\/span>(<\/span>EditText <\/span>mEditText<\/span>,<\/span> Context <\/span>mContext<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>InputMethodManager <\/span>imm<\/span> =<\/span> (<\/span>InputMethodManager<\/span>)<\/span> mContext<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>.<\/span>getSystemService<\/span>(<\/span>Context<\/span>.<\/span>INPUT_METHOD_SERVICE<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>imm<\/span>.<\/span>showSoftInput<\/span>(<\/span>mEditText<\/span>,<\/span> InputMethodManager<\/span>.<\/span>RESULT_SHOWN<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>imm<\/span>.<\/span>toggleSoftInput<\/span>(<\/span>InputMethodManager<\/span>.<\/span>SHOW_FORCED<\/span>,<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>InputMethodManager<\/span>.<\/span>HIDE_IMPLICIT_ONLY<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u5173\u95ed\u8f6f\u952e\u76d8 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param mEditText <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8f93\u5165\u6846 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param mContext <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u4e0a\u4e0b\u6587 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> closeKeybord<\/span>(<\/span>EditText <\/span>mEditText<\/span>,<\/span> Context <\/span>mContext<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>InputMethodManager <\/span>imm<\/span> =<\/span> (<\/span>InputMethodManager<\/span>)<\/span> mContext<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>.<\/span>getSystemService<\/span>(<\/span>Context<\/span>.<\/span>INPUT_METHOD_SERVICE<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>imm<\/span>.<\/span>hideSoftInputFromWindow<\/span>(<\/span>mEditText<\/span>.<\/span>getWindowToken<\/span>(<\/span>)<\/span>,<\/span> 0<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span><\/span><\/code><\/pre>\n
\n
9\u3001\u7f51\u7edc\u76f8\u5173\u8f85\u52a9\u7c7b NetUtils<\/span><\/h2>\n
\u00a0\u00a0\u00a0\u00a0<\/span>package<\/span> com<\/span>.<\/span>zhy<\/span>.<\/span>utils<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>app<\/span>.<\/span>Activity<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>content<\/span>.<\/span>ComponentName<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>content<\/span>.<\/span>Context<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>content<\/span>.<\/span>Intent<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>net<\/span>.<\/span>ConnectivityManager<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> android<\/span>.<\/span>net<\/span>.<\/span>NetworkInfo<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * \u8ddf\u7f51\u7edc\u76f8\u5173\u7684\u5de5\u5177\u7c7b <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> class<\/span> NetUtils<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>private<\/span> NetUtils<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** cannot be instantiated **\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>throw<\/span> new<\/span> UnsupportedOperationException<\/span>(<\/span>\"cannot be instantiated\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u5224\u65ad\u7f51\u7edc\u662f\u5426\u8fde\u63a5 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param context <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> boolean<\/span> isConnected<\/span>(<\/span>Context <\/span>context<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>ConnectivityManager <\/span>connectivity<\/span> =<\/span> (<\/span>ConnectivityManager<\/span>)<\/span> context<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>.<\/span>getSystemService<\/span>(<\/span>Context<\/span>.<\/span>CONNECTIVITY_SERVICE<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>null<\/span> !=<\/span> connectivity<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>NetworkInfo <\/span>info<\/span> =<\/span> connectivity<\/span>.<\/span>getActiveNetworkInfo<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>null<\/span> !=<\/span> info<\/span> &&<\/span> info<\/span>.<\/span>isConnected<\/span>(<\/span>)<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>info<\/span>.<\/span>getState<\/span>(<\/span>)<\/span> ==<\/span> NetworkInfo<\/span>.<\/span>State<\/span>.<\/span>CONNECTED<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> true<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> false<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u5224\u65ad\u662f\u5426\u662fwifi\u8fde\u63a5 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> boolean<\/span> isWifi<\/span>(<\/span>Context <\/span>context<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>ConnectivityManager <\/span>cm<\/span> =<\/span> (<\/span>ConnectivityManager<\/span>)<\/span> context<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>.<\/span>getSystemService<\/span>(<\/span>Context<\/span>.<\/span>CONNECTIVITY_SERVICE<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>cm<\/span> ==<\/span> null<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> false<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> cm<\/span>.<\/span>getActiveNetworkInfo<\/span>(<\/span>)<\/span>.<\/span>getType<\/span>(<\/span>)<\/span> ==<\/span> ConnectivityManager<\/span>.<\/span>TYPE_WIFI<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u6253\u5f00\u7f51\u7edc\u8bbe\u7f6e\u754c\u9762 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> openSetting<\/span>(<\/span>Activity <\/span>activity<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>Intent <\/span>intent<\/span> =<\/span> new<\/span> Intent<\/span>(<\/span>\"\/\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>ComponentName <\/span>cm<\/span> =<\/span> new<\/span> ComponentName<\/span>(<\/span>\"com.android.settings\"<\/span>,<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\"com.android.settings.WirelessSettings\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>intent<\/span>.<\/span>setComponent<\/span>(<\/span>cm<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>intent<\/span>.<\/span>setAction<\/span>(<\/span>\"android.intent.action.VIEW\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>activity<\/span>.<\/span>startActivityForResult<\/span>(<\/span>intent<\/span>,<\/span> 0<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span><\/span><\/code><\/pre>\n
\n
10\u3001Http\u76f8\u5173\u8f85\u52a9\u7c7b HttpUtils<\/span><\/h2>\n
\u00a0\u00a0\u00a0\u00a0<\/span>package<\/span> com<\/span>.<\/span>zhy<\/span>.<\/span>utils<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> java<\/span>.<\/span>io<\/span>.<\/span>BufferedReader<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> java<\/span>.<\/span>io<\/span>.<\/span>ByteArrayOutputStream<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> java<\/span>.<\/span>io<\/span>.<\/span>IOException<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> java<\/span>.<\/span>io<\/span>.<\/span>InputStream<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> java<\/span>.<\/span>io<\/span>.<\/span>InputStreamReader<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> java<\/span>.<\/span>io<\/span>.<\/span>PrintWriter<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> java<\/span>.<\/span>net<\/span>.<\/span>HttpURLConnection<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>import<\/span> java<\/span>.<\/span>net<\/span>.<\/span>URL<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * Http\u8bf7\u6c42\u7684\u5de5\u5177\u7c7b <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 * @author zhy <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> class<\/span> HttpUtils<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>private<\/span> static<\/span> final<\/span> int<\/span> TIMEOUT_IN_MILLIONS<\/span> =<\/span> 5000<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> interface<\/span> CallBack<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>void<\/span> onRequestComplete<\/span>(<\/span>String<\/span> result<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u5f02\u6b65\u7684Get\u8bf7\u6c42 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param urlStr <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param callBack <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> doGetAsyn<\/span>(<\/span>final<\/span> String<\/span> urlStr<\/span>,<\/span> final<\/span> CallBack <\/span>callBack<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>new<\/span> Thread<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> void<\/span> run<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>try<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>String<\/span> result<\/span> =<\/span> doGet<\/span>(<\/span>urlStr<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>callBack<\/span> !=<\/span> null<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>callBack<\/span>.<\/span>onRequestComplete<\/span>(<\/span>result<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> catch<\/span> (<\/span>Exception<\/span> e<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>e<\/span>.<\/span>printStackTrace<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>.<\/span>start<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u5f02\u6b65\u7684Post\u8bf7\u6c42 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param urlStr <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param params <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param callBack <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @throws Exception <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> void<\/span> doPostAsyn<\/span>(<\/span>final<\/span> String<\/span> urlStr<\/span>,<\/span> final<\/span> String<\/span> params<\/span>,<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>final<\/span> CallBack <\/span>callBack<\/span>)<\/span> throws<\/span> Exception<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>new<\/span> Thread<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> void<\/span> run<\/span>(<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>try<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>String<\/span> result<\/span> =<\/span> doPost<\/span>(<\/span>urlStr<\/span>,<\/span> params<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>callBack<\/span> !=<\/span> null<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>callBack<\/span>.<\/span>onRequestComplete<\/span>(<\/span>result<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> catch<\/span> (<\/span>Exception<\/span> e<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>e<\/span>.<\/span>printStackTrace<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>.<\/span>start<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/** <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * Get\u8bf7\u6c42\uff0c\u83b7\u5f97\u8fd4\u56de\u6570\u636e <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param urlStr <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @return <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @throws Exception <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> String<\/span> doGet<\/span>(<\/span>String<\/span> urlStr<\/span>)<\/span>\u00a0\u00a0 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>URL <\/span>url<\/span> =<\/span> null<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>HttpURLConnection <\/span>conn<\/span> =<\/span> null<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>InputStream <\/span>is<\/span> =<\/span> null<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>ByteArrayOutputStream <\/span>baos<\/span> =<\/span> null<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>try<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>url<\/span> =<\/span> new<\/span> URL<\/span>(<\/span>urlStr<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span> =<\/span> (<\/span>HttpURLConnection<\/span>)<\/span> url<\/span>.<\/span>openConnection<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span>.<\/span>setReadTimeout<\/span>(<\/span>TIMEOUT_IN_MILLIONS<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span>.<\/span>setConnectTimeout<\/span>(<\/span>TIMEOUT_IN_MILLIONS<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span>.<\/span>setRequestMethod<\/span>(<\/span>\"GET\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span>.<\/span>setRequestProperty<\/span>(<\/span>\"accept\"<\/span>,<\/span> \"*\/*\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span>.<\/span>setRequestProperty<\/span>(<\/span>\"connection\"<\/span>,<\/span> \"Keep-Alive\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>conn<\/span>.<\/span>getResponseCode<\/span>(<\/span>)<\/span> ==<\/span> 200<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>is<\/span> =<\/span> conn<\/span>.<\/span>getInputStream<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>baos<\/span> =<\/span> new<\/span> ByteArrayOutputStream<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>int<\/span> len<\/span> =<\/span> -<\/span>1<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>byte<\/span>[<\/span>]<\/span> buf<\/span> =<\/span> new<\/span> byte<\/span>[<\/span>128<\/span>]<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>while<\/span> (<\/span>(<\/span>len<\/span> =<\/span> is<\/span>.<\/span>read<\/span>(<\/span>buf<\/span>)<\/span>)<\/span> !=<\/span> -<\/span>1<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>baos<\/span>.<\/span>write<\/span>(<\/span>buf<\/span>,<\/span> 0<\/span>,<\/span> len<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>baos<\/span>.<\/span>flush<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> baos<\/span>.<\/span>toString<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> else<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>throw<\/span> new<\/span> RuntimeException<\/span>(<\/span>\" responseCode is not 200 ... \"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> catch<\/span> (<\/span>Exception<\/span> e<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>e<\/span>.<\/span>printStackTrace<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> finally<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>try<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>is<\/span> !=<\/span> null<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>is<\/span>.<\/span>close<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> catch<\/span> (<\/span>IOException<\/span> e<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>try<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>baos<\/span> !=<\/span> null<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>baos<\/span>.<\/span>close<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> catch<\/span> (<\/span>IOException<\/span> e<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span>.<\/span>disconnect<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> null<\/span> ;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/**\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * \u5411\u6307\u5b9a URL \u53d1\u9001POST\u65b9\u6cd5\u7684\u8bf7\u6c42\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param url\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u53d1\u9001\u8bf7\u6c42\u7684 URL\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @param param\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u8bf7\u6c42\u53c2\u6570\uff0c\u8bf7\u6c42\u53c2\u6570\u5e94\u8be5\u662f name1=value1&name2=value2 \u7684\u5f62\u5f0f\u3002\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @return \u6240\u4ee3\u8868\u8fdc\u7a0b\u8d44\u6e90\u7684\u54cd\u5e94\u7ed3\u679c\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 * @throws Exception\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *\/<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>public<\/span> static<\/span> String<\/span> doPost<\/span>(<\/span>String<\/span> url<\/span>,<\/span> String<\/span> param<\/span>)<\/span>\u00a0\u00a0 <\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>PrintWriter <\/span>out<\/span> =<\/span> null<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>BufferedReader <\/span>in<\/span> =<\/span> null<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>String<\/span> result<\/span> =<\/span> \"\"<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>try<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>URL <\/span>realUrl<\/span> =<\/span> new<\/span> URL<\/span>(<\/span>url<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/\/ \u6253\u5f00\u548cURL\u4e4b\u95f4\u7684\u8fde\u63a5\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>HttpURLConnection <\/span>conn<\/span> =<\/span> (<\/span>HttpURLConnection<\/span>)<\/span> realUrl<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>.<\/span>openConnection<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/\/ \u8bbe\u7f6e\u901a\u7528\u7684\u8bf7\u6c42\u5c5e\u6027\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span>.<\/span>setRequestProperty<\/span>(<\/span>\"accept\"<\/span>,<\/span> \"*\/*\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span>.<\/span>setRequestProperty<\/span>(<\/span>\"connection\"<\/span>,<\/span> \"Keep-Alive\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span>.<\/span>setRequestMethod<\/span>(<\/span>\"POST\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span>.<\/span>setRequestProperty<\/span>(<\/span>\"Content-Type\"<\/span>,<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\"application\/x-www-form-urlencoded\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span>.<\/span>setRequestProperty<\/span>(<\/span>\"charset\"<\/span>,<\/span> \"utf-8\"<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span>.<\/span>setUseCaches<\/span>(<\/span>false<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/\/ \u53d1\u9001POST\u8bf7\u6c42\u5fc5\u987b\u8bbe\u7f6e\u5982\u4e0b\u4e24\u884c\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span>.<\/span>setDoOutput<\/span>(<\/span>true<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span>.<\/span>setDoInput<\/span>(<\/span>true<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span>.<\/span>setReadTimeout<\/span>(<\/span>TIMEOUT_IN_MILLIONS<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>conn<\/span>.<\/span>setConnectTimeout<\/span>(<\/span>TIMEOUT_IN_MILLIONS<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>param<\/span> !=<\/span> null<\/span> &&<\/span> !<\/span>param<\/span>.<\/span>trim<\/span>(<\/span>)<\/span>.<\/span>equals<\/span>(<\/span>\"\"<\/span>)<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/\/ \u83b7\u53d6URLConnection\u5bf9\u8c61\u5bf9\u5e94\u7684\u8f93\u51fa\u6d41\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>out<\/span> =<\/span> new<\/span> PrintWriter<\/span>(<\/span>conn<\/span>.<\/span>getOutputStream<\/span>(<\/span>)<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/\/ \u53d1\u9001\u8bf7\u6c42\u53c2\u6570\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>out<\/span>.<\/span>print<\/span>(<\/span>param<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/\/ flush\u8f93\u51fa\u6d41\u7684\u7f13\u51b2\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>out<\/span>.<\/span>flush<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/\/ \u5b9a\u4e49BufferedReader\u8f93\u5165\u6d41\u6765\u8bfb\u53d6URL\u7684\u54cd\u5e94\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>in<\/span> =<\/span> new<\/span> BufferedReader<\/span>(<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>new<\/span> InputStreamReader<\/span>(<\/span>conn<\/span>.<\/span>getInputStream<\/span>(<\/span>)<\/span>)<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>String<\/span> line<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>while<\/span> (<\/span>(<\/span>line<\/span> =<\/span> in<\/span>.<\/span>readLine<\/span>(<\/span>)<\/span>)<\/span> !=<\/span> null<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>result<\/span> +=<\/span> line<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> catch<\/span> (<\/span>Exception<\/span> e<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>e<\/span>.<\/span>printStackTrace<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>\/\/ \u4f7f\u7528finally\u5757\u6765\u5173\u95ed\u8f93\u51fa\u6d41\u3001\u8f93\u5165\u6d41\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>finally<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>try<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>out<\/span> !=<\/span> null<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>out<\/span>.<\/span>close<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>if<\/span> (<\/span>in<\/span> !=<\/span> null<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>in<\/span>.<\/span>close<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span> catch<\/span> (<\/span>IOException <\/span>ex<\/span>)<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>ex<\/span>.<\/span>printStackTrace<\/span>(<\/span>)<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>return<\/span> result<\/span>;<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span>\u00a0\u00a0<\/span><\/span>\n\u00a0\u00a0\u00a0\u00a0<\/span>}<\/span><\/span><\/code><\/pre>\n
\u5982\u679c\u5927\u5bb6\u5728\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u51fa\u73b0\u4ec0\u4e48\u9519\u8bef\uff0c\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\uff0c\u6b22\u8fce\u5927\u5bb6\u7559\u8a00\u63d0\u51fa~~\u53ef\u4ee5\u4e0d\u65ad\u7684\u6539\u8fdb\u8fd9\u4e9b\u7c7b~<\/p>\n
\u6e90\u7801\u70b9\u51fb\u4e0b\u8f7d<\/a><\/p>\n
\u539f\u6587\u51fa\u5904\uff1a \u5f20\u9e3f\u6d0b\u7684\u535a\u5ba2<\/a><\/p>\n
\n
\u4e00\u53e5\u8bdd\u603b\u7ed3\uff1a\u628a L\u3001T\u3001SPUtils\u3001DensityUtils\u3001SDCardUtils\u3001ScreenUtils\u3001AppUtils\u3001KeyBoardUtils\u3001NetUtils\u3001HttpUtils \u8fd9 10 \u4e2a\u5de5\u5177\u7c7b\u5907\u9f50\uff0c\u65e5\u5e38 CRUD \u5c31\u80fd\u5c11\u5199\u4e00\u5806\u6837\u677f\u3002<\/strong><\/p>\n<\/blockquote>\n<\/section>\n","protected":false},"excerpt":{"rendered":"
\u6bcf\u4e2a Android \u9879\u76ee\u51e0\u4e4e\u90fd\u4f1a\u7528\u5230\u65e5\u5fd7\u3001Toast\u3001SharedPreferences\u3001\u5355\u4f4d\u6362\u7b97\u3001SD \u5361 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[45],"tags":[],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/1136"}],"collection":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1136"}],"version-history":[{"count":3,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/1136\/revisions"}],"predecessor-version":[{"id":1139,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/1136\/revisions\/1139"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1136"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}