{"id":1635,"date":"2016-07-18T11:51:04","date_gmt":"2016-07-18T03:51:04","guid":{"rendered":"https:\/\/ai.zhousir.top\/?p=1635"},"modified":"2020-04-15T22:22:03","modified_gmt":"2020-04-15T14:22:03","slug":"android-%e5%bf%ab%e9%80%9f%e5%ae%9e%e7%8e%b0%e6%96%87%e4%bb%b6%e4%b8%8b%e8%bd%bd%ef%bc%88%e5%8f%aa%e6%9c%894%e8%a1%8c%e4%bb%a3%e7%a0%81%ef%bc%89","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=1635","title":{"rendered":"Android \u5feb\u901f\u5b9e\u73b0\u6587\u4ef6\u4e0b\u8f7d\uff08\u53ea\u67094\u884c\u4ee3\u7801\uff09"},"content":{"rendered":"<h6>\u7b80\u5355\u4f7f\u7528<\/h6>\n<p>\u5b8c\u6210\u4e00\u4e2a\u4e0b\u8f7d\u4efb\u52a1\u53ea\u9700\u89814\u884c\u4ee3\u7801\uff0c\u4ec0\u4e48\u65ad\u70b9\u7eed\u4f20\uff0c\u5927\u6587\u4ef6\u4e0b\u8f7d\uff0c\u901a\u77e5\u680f\u8fdb\u5ea6\u663e\u793a&#8230;.\u90fd\u4e0d\u9700\u8981\u4f60\u64cd\u5fc3\u3002<\/p>\n<pre class=\"hljs scala\"><code class=\"scala\"><span class=\"hljs-comment\">\/\/\u521b\u5efa\u4e0b\u8f7d\u4efb\u52a1,downloadUrl\u5c31\u662f\u4e0b\u8f7d\u94fe\u63a5<\/span>\r\n<span class=\"hljs-type\">DownloadManager<\/span>.<span class=\"hljs-type\">Request<\/span> request = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-type\">DownloadManager<\/span>.<span class=\"hljs-type\">Request<\/span>(<span class=\"hljs-type\">Uri<\/span>.parse(downloadUrl));\r\n<span class=\"hljs-comment\">\/\/\u6307\u5b9a\u4e0b\u8f7d\u8def\u5f84\u548c\u4e0b\u8f7d\u6587\u4ef6\u540d<\/span>\r\nrequest.setDestinationInExternalPublicDir(<span class=\"hljs-string\">\"\/download\/\"<\/span>, fileName);\r\n<span class=\"hljs-comment\">\/\/\u83b7\u53d6\u4e0b\u8f7d\u7ba1\u7406\u5668<\/span>\r\n<span class=\"hljs-type\">DownloadManager<\/span> downloadManager= (<span class=\"hljs-type\">DownloadManager<\/span>) mContext.getSystemService(<span class=\"hljs-type\">Context<\/span>.<span class=\"hljs-type\">DOWNLOAD_SERVICE<\/span>);\r\n<span class=\"hljs-comment\">\/\/\u5c06\u4e0b\u8f7d\u4efb\u52a1\u52a0\u5165\u4e0b\u8f7d\u961f\u5217\uff0c\u5426\u5219\u4e0d\u4f1a\u8fdb\u884c\u4e0b\u8f7d<\/span>\r\ndownloadManager.enqueue(request);<\/code><\/pre>\n<h6>\u9ad8\u7ea7\u7528\u6cd5<\/h6>\n<ul>\n<li>\u901a\u8fc7\u4e0a\u9762\u7684\u4ee3\u7801\u5927\u5bb6\u4e5f\u770b\u51fa\u6765\u4e86\uff0c\u6211\u4eec\u4f7f\u7528\u7684\u662f\u7cfb\u7edf\u63d0\u4f9b\u7684\u4e0b\u8f7d\u7ba1\u7406\u5668\u8fdb\u884c\u4e0b\u8f7d\uff0c\u4eceAPI 9\u5c31\u5f00\u59cb\u652f\u6301\u4e86\uff0c\u6240\u4ee5\u4e0d\u7528\u62c5\u5fc3\u5728\u517c\u5bb9\u95ee\u9898<\/li>\n<li>\u65e2\u7136\u662f\u7cfb\u7edf\u63d0\u4f9b\u7684\uff0c\u90a3\u4e48\u80af\u5b9a\u8fd8\u6709\u66f4\u52a0\u5f3a\u5927\u7684\u7528\u6cd5\uff0c\u6587\u7ae0\u7ee7\u7eed<\/li>\n<\/ul>\n<p>\u8ba9\u6211\u4eec\u770bDownloadManager\u7684\u6e90\u7801\uff0c\u63d0\u4f9b\u4e86\u8fd9\u4e48\u591a\u65b9\u6cd5<\/p>\n<div class=\"image-package imagebubble\"><img decoding=\"async\" loading=\"lazy\" class=\"imagebubble-image\" src=\"http:\/\/upload-images.jianshu.io\/upload_images\/960283-03b6c4968167475e.png?imageMogr2\/auto-orient\/strip%7CimageView2\/2\/w\/1240\" alt=\"\" width=\"641\" height=\"443\" data-original-src=\"http:\/\/upload-images.jianshu.io\/upload_images\/960283-03b6c4968167475e.png?imageMogr2\/auto-orient\/strip%7CimageView2\/2\" \/><a href=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2016\/07\/\u256c\u0432\u2568\u253c\u255c\u256a\u2550\u255d_20200415222137.png\" rel=\"fancybox\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-2835\" src=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2016\/07\/\u256c\u0432\u2568\u253c\u255c\u256a\u2550\u255d_20200415222137.png\" alt=\"\u256c\u0432\u2568\u253c\u255c\u256a\u2550\u255d_20200415222137\" width=\"695\" height=\"493\" \/><\/a><\/p>\n<div class=\"image-caption\">DownloadManager\u7684\u65b9\u6cd5<\/div>\n<\/div>\n<div class=\"image-package imagebubble\"><img decoding=\"async\" loading=\"lazy\" class=\"imagebubble-image\" src=\"http:\/\/upload-images.jianshu.io\/upload_images\/960283-b2026b07e3a86194.png?imageMogr2\/auto-orient\/strip%7CimageView2\/2\/w\/1240\" alt=\"\" width=\"567\" height=\"411\" data-original-src=\"http:\/\/upload-images.jianshu.io\/upload_images\/960283-b2026b07e3a86194.png?imageMogr2\/auto-orient\/strip%7CimageView2\/2\" \/><\/p>\n<div class=\"image-caption\">DownloadManager.Request\u7684\u65b9\u6cd5<\/div>\n<\/div>\n<ul>\n<li>\u65b9\u6cd5\u5dee\u4e0d\u591a\u5c31\u8fd9\u4e9b\uff0c\u5df2\u7ecf\u6bd4\u8f83\u5168\u4e86\uff0c\u53ef\u4ee5\u6ee1\u8db3\u6211\u4eec\u7edd\u5927\u90e8\u5206\u7684\u4f7f\u7528\u573a\u666f\u3002<\/li>\n<\/ul>\n<h6>\u5b9e\u9645\u4f7f\u7528<\/h6>\n<p>\u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u4ee5APP\u5e94\u7528\u5185\u66f4\u65b0\u4e3a\u4f8b\uff0c\u8bb2\u4e00\u4e0b\u8fd9\u4e9b\u65b9\u6cd5\u7684\u4f7f\u7528<br \/>\n1.\u9996\u5148\u6211\u4eec\u68b3\u7406\u4e0bAPP\u5e94\u7528\u5185\u66f4\u65b0\u7684\u903b\u8f91<\/p>\n<div class=\"image-package imagebubble\"><img decoding=\"async\" class=\"imagebubble-image\" src=\"http:\/\/upload-images.jianshu.io\/upload_images\/960283-a736c903bf5839dc.png?imageMogr2\/auto-orient\/strip%7CimageView2\/2\/w\/1240\" alt=\"\" data-original-src=\"http:\/\/upload-images.jianshu.io\/upload_images\/960283-a736c903bf5839dc.png?imageMogr2\/auto-orient\/strip%7CimageView2\/2\" \/><\/p>\n<div class=\"image-caption\">APP\u5e94\u7528\u5185\u66f4\u65b0<\/div>\n<\/div>\n<p>2.\u63a5\u4e0b\u6765\u770b\u5177\u4f53\u5b9e\u73b0\uff0c\u4e0a\u4ee3\u7801<\/p>\n<pre class=\"hljs javascript\"><code class=\"javascript\"><span class=\"hljs-comment\">\/\/\u4f7f\u7528\u7cfb\u7edf\u4e0b\u8f7d\u5668\u4e0b\u8f7d<\/span>\r\nprivate <span class=\"hljs-keyword\">void<\/span> downloadAPK(<span class=\"hljs-built_in\">String<\/span> versionUrl, <span class=\"hljs-built_in\">String<\/span> versionName) {\r\n        <span class=\"hljs-comment\">\/\/\u521b\u5efa\u4e0b\u8f7d\u4efb\u52a1<\/span>\r\n        DownloadManager.Request request = <span class=\"hljs-keyword\">new<\/span> DownloadManager.Request(Uri.parse(versionUrl));\r\n        request.setAllowedOverRoaming(<span class=\"hljs-literal\">false<\/span>);<span class=\"hljs-comment\">\/\/\u6f2b\u6e38\u7f51\u7edc\u662f\u5426\u53ef\u4ee5\u4e0b\u8f7d<\/span>\r\n\r\n        <span class=\"hljs-comment\">\/\/\u8bbe\u7f6e\u6587\u4ef6\u7c7b\u578b\uff0c\u53ef\u4ee5\u5728\u4e0b\u8f7d\u7ed3\u675f\u540e\u81ea\u52a8\u6253\u5f00\u8be5\u6587\u4ef6<\/span>\r\n        MimeTypeMap mimeTypeMap = MimeTypeMap.getSingleton();\r\n        <span class=\"hljs-built_in\">String<\/span> mimeString = mimeTypeMap.getMimeTypeFromExtension(MimeTypeMap.getFileExtensionFromUrl(versionUrl));\r\n        request.setMimeType(mimeString);\r\n\r\n        <span class=\"hljs-comment\">\/\/\u5728\u901a\u77e5\u680f\u4e2d\u663e\u793a\uff0c\u9ed8\u8ba4\u5c31\u662f\u663e\u793a\u7684<\/span>\r\n        request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE);\r\n        request.setVisibleInDownloadsUi(<span class=\"hljs-literal\">true<\/span>);\r\n\r\n        <span class=\"hljs-comment\">\/\/sdcard\u7684\u76ee\u5f55\u4e0b\u7684download\u6587\u4ef6\u5939\uff0c\u5fc5\u987b\u8bbe\u7f6e<\/span>\r\n        request.setDestinationInExternalPublicDir(<span class=\"hljs-string\">\"\/download\/\"<\/span>, versionName);\r\n        <span class=\"hljs-comment\">\/\/request.setDestinationInExternalFilesDir(),\u4e5f\u53ef\u4ee5\u81ea\u5df1\u5236\u5b9a\u4e0b\u8f7d\u8def\u5f84<\/span>\r\n\r\n        <span class=\"hljs-comment\">\/\/\u5c06\u4e0b\u8f7d\u8bf7\u6c42\u52a0\u5165\u4e0b\u8f7d\u961f\u5217<\/span>\r\n        downloadManager = (DownloadManager) mContext.getSystemService(Context.DOWNLOAD_SERVICE);\r\n        <span class=\"hljs-comment\">\/\/\u52a0\u5165\u4e0b\u8f7d\u961f\u5217\u540e\u4f1a\u7ed9\u8be5\u4efb\u52a1\u8fd4\u56de\u4e00\u4e2along\u578b\u7684id\uff0c<\/span>\r\n        <span class=\"hljs-comment\">\/\/\u901a\u8fc7\u8be5id\u53ef\u4ee5\u53d6\u6d88\u4efb\u52a1\uff0c\u91cd\u542f\u4efb\u52a1\u7b49\u7b49\uff0c\u770b\u4e0a\u9762\u6e90\u7801\u4e2d\u6846\u8d77\u6765\u7684\u65b9\u6cd5<\/span>\r\n        mTaskId = downloadManager.enqueue(request);\r\n\r\n        <span class=\"hljs-comment\">\/\/\u6ce8\u518c\u5e7f\u64ad\u63a5\u6536\u8005\uff0c\u76d1\u542c\u4e0b\u8f7d\u72b6\u6001<\/span>\r\n        mContext.registerReceiver(receiver,\r\n                <span class=\"hljs-keyword\">new<\/span> IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));\r\n    }<\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\u662f\u5e7f\u64ad\u63a5\u6536\u5668<\/p>\n<pre class=\"hljs java\"><code class=\"java\">    <span class=\"hljs-comment\">\/\/\u5e7f\u64ad\u63a5\u53d7\u8005\uff0c\u63a5\u6536\u4e0b\u8f7d\u72b6\u6001<\/span>\r\n    <span class=\"hljs-keyword\">private<\/span> BroadcastReceiver receiver = <span class=\"hljs-keyword\">new<\/span> BroadcastReceiver() {\r\n        <span class=\"hljs-annotation\">@Override<\/span>\r\n        <span class=\"hljs-function\"><span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title\">onReceive<\/span><span class=\"hljs-params\">(Context context, Intent intent)<\/span> <\/span>{\r\n            checkDownloadStatus();<span class=\"hljs-comment\">\/\/\u68c0\u67e5\u4e0b\u8f7d\u72b6\u6001<\/span>\r\n        }\r\n    };<\/code><\/pre>\n<p>\u68c0\u67e5\u4e0b\u8f7d\u72b6\u6001<\/p>\n<pre class=\"hljs cs\"><code class=\"cs\"> <span class=\"hljs-comment\">\/\/\u68c0\u67e5\u4e0b\u8f7d\u72b6\u6001<\/span>\r\n    <span class=\"hljs-function\"><span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title\">checkDownloadStatus<\/span>() <\/span>{\r\n        DownloadManager.Query query = <span class=\"hljs-keyword\">new<\/span> DownloadManager.Query();\r\n        query.setFilterById(mTaskId);<span class=\"hljs-comment\">\/\/\u7b5b\u9009\u4e0b\u8f7d\u4efb\u52a1\uff0c\u4f20\u5165\u4efb\u52a1ID\uff0c\u53ef\u53d8\u53c2\u6570<\/span>\r\n        Cursor c = downloadManager.query(query);\r\n        <span class=\"hljs-keyword\">if<\/span> (c.moveToFirst()) {\r\n            <span class=\"hljs-keyword\">int<\/span> status = c.getInt(c.getColumnIndex(DownloadManager.COLUMN_STATUS));\r\n            <span class=\"hljs-keyword\">switch<\/span> (status) {\r\n                <span class=\"hljs-keyword\">case<\/span> DownloadManager.STATUS_PAUSED:\r\n                    MLog.i(<span class=\"hljs-string\">\"&gt;&gt;&gt;\u4e0b\u8f7d\u6682\u505c\"<\/span>);\r\n                <span class=\"hljs-keyword\">case<\/span> DownloadManager.STATUS_PENDING:\r\n                    MLog.i(<span class=\"hljs-string\">\"&gt;&gt;&gt;\u4e0b\u8f7d\u5ef6\u8fdf\"<\/span>);\r\n                <span class=\"hljs-keyword\">case<\/span> DownloadManager.STATUS_RUNNING:\r\n                    MLog.i(<span class=\"hljs-string\">\"&gt;&gt;&gt;\u6b63\u5728\u4e0b\u8f7d\"<\/span>);\r\n                    <span class=\"hljs-keyword\">break<\/span>;\r\n                <span class=\"hljs-keyword\">case<\/span> DownloadManager.STATUS_SUCCESSFUL\r\n                    MLog.i(<span class=\"hljs-string\">\"&gt;&gt;&gt;\u4e0b\u8f7d\u5b8c\u6210\"<\/span>);\r\n                    <span class=\"hljs-comment\">\/\/\u4e0b\u8f7d\u5b8c\u6210\u5b89\u88c5APK<\/span>\r\n                    <span class=\"hljs-comment\">\/\/downloadPath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).getAbsolutePath() + File.separator + versionName;<\/span>\r\n                    installAPK(<span class=\"hljs-keyword\">new<\/span> File(downloadPath));\r\n                    <span class=\"hljs-keyword\">break<\/span>;\r\n                <span class=\"hljs-keyword\">case<\/span> DownloadManager.STATUS_FAILED:\r\n                    MLog.i(<span class=\"hljs-string\">\"&gt;&gt;&gt;\u4e0b\u8f7d\u5931\u8d25\"<\/span>);\r\n                    <span class=\"hljs-keyword\">break<\/span>;\r\n            }\r\n        }\r\n    }<\/code><\/pre>\n<p>\u5b89\u88c5APK<\/p>\n<pre class=\"hljs cs\"><code class=\"cs\">    <span class=\"hljs-comment\">\/\/\u4e0b\u8f7d\u5230\u672c\u5730\u540e\u6267\u884c\u5b89\u88c5<\/span>\r\n    <span class=\"hljs-function\"><span class=\"hljs-keyword\">protected<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title\">installAPK<\/span>(<span class=\"hljs-params\">File file<\/span>) <\/span>{\r\n        <span class=\"hljs-keyword\">if<\/span> (!file.exists()) <span class=\"hljs-keyword\">return<\/span>;\r\n        Intent intent = <span class=\"hljs-keyword\">new<\/span> Intent(Intent.ACTION_VIEW);\r\n        Uri uri = Uri.parse(<span class=\"hljs-string\">\"file:\/\/\"<\/span> + file.toString());\r\n        intent.setDataAndType(uri, <span class=\"hljs-string\">\"application\/vnd.android.package-archive\"<\/span>);\r\n        <span class=\"hljs-comment\">\/\/\u5728\u670d\u52a1\u4e2d\u5f00\u542factivity\u5fc5\u987b\u8bbe\u7f6eflag,\u540e\u9762\u89e3\u91ca<\/span>\r\n        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);\r\n        mContext.startActivity(intent);\r\n    }<\/code><\/pre>\n<p>\u5230\u6b64\u5c31\u5b8c\u6210\u4e86\u5e94\u7528\u5185\u66f4\u65b0APP\u7684\u4ee3\u7801\uff0c\u4f46\u662f\u6709\u4e00\u4e9b\u5751\u9700\u8981\u6ce8\u610f\uff01<\/p>\n<h6>\u5e0c\u671b\u4f60\u53ef\u4ee5\u770b\u5230\u6700\u540e\u8fd9\u51e0\u53e5\uff0c\u4e0d\u7136\u4f60\u4e5f\u4f1a\u88ab\u5751\u7684\uff01<\/h6>\n<p>1.\u867d\u7136\u4e0b\u8f7d\u4ec0\u4e48\u7684\u4e0d\u9700\u8981\u81ea\u5df1\u64cd\u5fc3\u4e86\uff0c\u4f46\u662f\u5efa\u8bae\u8fd8\u662f\u5c06\u6574\u4e2a\u4e0a\u9762\u56db\u6bb5\u4ee3\u7801\u653e\u5728Service\u4e2d\u6267\u884c\uff0c\u56e0\u4e3a\u653e\u5728Activity\u4e2d\u65f6\uff0c\u5f53\u7528\u6237\u6309home\u952e\u540e\uff0c\u5373\u4f7f\u4e0b\u8f7d\u5b8c\u4e86\uff0c\u4e5f\u4e0d\u4f1a\u5f39\u51fa\u5b89\u88c5\u754c\u9762<br \/>\n2.\u5efa\u8bae\u4f7f\u7528startService\u7684\u65b9\u5f0f\u542f\u52a8Service\uff0c\u8fd9\u6837\u4e0d\u4f1a\u4e0eActivity\u751f\u547d\u5468\u671f\u7ed1\u5b9a\uff0c\u4fdd\u8bc1\u4e0b\u8f7d\u5b8c\u540e\u80fd\u987a\u5229\u5b89\u88c5\u3002<br \/>\n3.Service\u4f7f\u7528\u5b8c\u540e\u8981\u53ca\u65f6\u5730\u505c\u6389\uff01<\/p>\n<p>&nbsp;<\/p>\n<div>\u539f\u6587\u94fe\u63a5\uff1ahttp:\/\/www.jianshu.com\/p\/46fd1c253701<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u7b80\u5355\u4f7f\u7528 \u5b8c\u6210\u4e00\u4e2a\u4e0b\u8f7d\u4efb\u52a1\u53ea\u9700\u89814\u884c\u4ee3\u7801\uff0c\u4ec0\u4e48\u65ad\u70b9\u7eed\u4f20\uff0c\u5927\u6587\u4ef6\u4e0b\u8f7d\uff0c\u901a\u77e5\u680f\u8fdb\u5ea6\u663e\u793a&#8230;.\u90fd\u4e0d\u9700\u8981\u4f60\u64cd [&hellip;]<\/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\/1635"}],"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=1635"}],"version-history":[{"count":5,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/1635\/revisions"}],"predecessor-version":[{"id":2836,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/1635\/revisions\/2836"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}