{"id":495,"date":"2015-04-20T20:05:10","date_gmt":"2015-04-20T12:05:10","guid":{"rendered":"https:\/\/ai.zhousir.top\/?p=495"},"modified":"2015-04-20T20:05:10","modified_gmt":"2015-04-20T12:05:10","slug":"%e4%ba%8b%e4%bb%b6%e7%9b%b8%e5%85%b3%e6%a6%82%e8%bf%b0","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=495","title":{"rendered":"\u4e8b\u4ef6\u76f8\u5173\u6982\u8ff0"},"content":{"rendered":"

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\nAndroid\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u4e8b\u4ef6\u5904\u7406\u673a\u5236\uff0c\u5b83\u5305\u62ec\u4e24\u5957\u5904\u7406\u673a\u5236\uff1a
\n1.\u57fa\u4e8e\u76d1\u542c\u7684\u4e8b\u4ef6\u5904\u7406
\n2.\u57fa\u4e8e\u56de\u8c03\u7684\u4e8b\u4ef6\u5904\u7406
\n
\n\u5bf9\u4e8eAndroid\u57fa\u4e8e\u76d1\u542c\u7684\u4e8b\u4ef6\u5904\u7406\uff0c\u4e3b\u8981\u7684\u505a\u6cd5\u662f\u4e3aAndroid\u754c\u9762\u7ec4\u4ef6\u7ed1\u5b9a\u7279\u5b9a\u7684\u4e8b\u4ef6\u76d1\u542c\u5668\u3002
\n\u5bf9\u4e8eAndroid\u57fa\u4e8e\u56de\u8c03\u7684\u4e8b\u4ef6\u5904\u7406\uff0c\u4e3b\u8981\u7684\u65b9\u6cd5\u662f\u91cd\u5199Android\u7ec4\u4ef6\u7279\u5b9a\u7684\u56de\u8c03\u65b9\u6cd5\u6216\u8005\u91cd\u5199
\nActivity\u7684\u56de\u8c03\u65b9\u6cd5
\n\u4e00\u3001\u57fa\u4e8e\u76d1\u542c\u7684\u4e8b\u4ef6\u5904\u7406
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\n1.Event Source(\u4e8b\u4ef6\u6e90)\uff1a\u4e8b\u4ef6\u53d1\u751f\u7684\u573a\u6240\uff0c\u901a\u5e38\u5c31\u662f\u5404\u4e2a\u7ec4\u4ef6\u3001\u4f8b\u5982\u6309\u94ae\u3001\u7a97\u53e3\u3001\u83dc\u5355\u7b49\u3002
\n2.Event(\u4e8b\u4ef6)\uff1a\u4e8b\u4ef6\u5c01\u88c5\u4e86\u754c\u9762\u7ec4\u4ef6\u4e0a\u53d1\u751f\u7684\u7279\u5b9a\u4e8b\u60c5\uff08\u901a\u5e38\u5c31\u662f\u4e00\u6b21\u7528\u6237\u64cd\u4f5c\uff09\u3002
\n3.Event Listener(\u4e8b\u4ef6\u76d1\u542c\u5668)\uff1a\u8d1f\u8d23\u76d1\u542c\u4e8b\u4ef6\u6e90\u6240\u53d1\u751f\u7684\u4e8b\u4ef6\uff0c\u5e76\u5bf9\u5404\u79cd\u4e8b\u4ef6\u505a\u51fa\u76f8\u5e94\u7684\u54cd\u5e94\u3002
\n\u00a0\u00a0\u00a0 \u4e8b\u4ef6\u5904\u7406\u6d41\u7a0b\u793a\u610f\u56fe\u5982\u4e0b\uff1a
\n\"21\"<\/a>
\n\u00a0\u00a0\u00a0 \u5185\u90e8\u7c7b\u53ef\u4ee5\u4f5c\u4e3a\u4e8b\u4ef6\u76d1\u542c\u5668\u7c7b\uff0c\u5982\u679c\u67d0\u4e2a\u76d1\u542c\u5668\u8981\u88ab\u591a\u4e2aGUI\u754c\u9762\u6240\u5171\u4eab\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5916\u90e8\u7c7b
\n\u4f5c\u4e3a\u4e8b\u4ef6\u76d1\u542c\u5668\u7c7b\uff0c\u8fd8\u6709\u4e00\u79cd\u662f\u533f\u540d\u5185\u90e8\u7c7b\u4f5c\u4e3a\u4e8b\u4ef6\u76d1\u542c\u5668\u7c7b\u3002
\n\u00a0\u00a0\u00a0
\n\u4e8c\u3001\u4e8b\u4ef6\u5904\u7406\u6a21\u578b
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u4e8b\u4ef6\u5904\u7406\u6a21\u578b\u901a\u5e38\u6709\u4e09\u79cd\u65b9\u5f0f\uff1a\u63a5\u53e3\u5b9e\u73b0\u4e8b\u4ef6\u5904\u7406\u6a21\u578b\u3001\u5185\u90e8\u7c7b\u4e8b\u4ef6\u5904\u7406\u6a21\u578b\u548c\u533f\u540d\u5185\u90e8\u7c7b\u4e8b\u4ef6\u5904\u7406\u6a21\u578b\u4e09\u79cd\u3002\u4e0b\u9762\u4ee5\u54cd\u5e94Button\u4e8b\u4ef6\u6e90\uff0c\u5355\u51fb\u4e8b\u4ef6\u4ee5\u53ca\u5f39\u51fa\u54cd\u5e94\u7ed3\u679c\u4e3a\u4f8b\u8bf4\u660e\u4ee5\u4e0a\u4e09\u79cd\u4e8b\u4ef6\u5904\u7406\u6a21\u578b\u3002
\n1\u3001\u63a5\u53e3\u5b9e\u73b0\u4e8b\u4ef6\u5904\u7406\u6a21\u578b
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u4ee5\u4e0bButton\u6309\u94ae\u54cd\u5e94\u673a\u5236\u4e3a\uff1a\u5355\u51fbButton\u7684\u65f6\u5019\uff0c\u5c4f\u5e55\u4e0a\u7684TextView\u4e2d\u8f93\u51fa\u201c\u4f60\u597d\uff01\u201d\u3002
\n\u901a\u8fc7DroidDraw\u8bbe\u8ba1\u7684\u5e26Button\u6309\u94ae\u7684\u5e03\u5c40\uff0c\u5982\u56fe1\u6240\u793a\uff1a<\/p>\n

\u56fe1 \u5e03\u5c40\u6587\u4ef6\u7684\u8bbe\u8ba1
\n\u5176\u4e2d\uff0c\u5e03\u5c40\u4ee3\u7801\u5982\u4e0b\uff1a
\n[java]<?xml version="1.0" encoding="utf-8"?>
\n<LinearLayout
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 android:id="@+id\/userlayout"
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 android:layout_width="fill_parent"
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 android:layout_height="fill_parent"
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 android:orientation="vertical"
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 xmlns:android="http:\/\/schemas.android.com\/apk\/res\/android">
\n<TextView
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 android:id="@+id\/mytext"
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 android:layout_width="165dp"
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 android:layout_height="38dp"
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 android:text="TextView" \/>
\n<Button
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 android:id="@+id\/mybutton"
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 android:layout_width="172dp"
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 android:layout_height="52dp"
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 android:text="Button" \/>
\n<\/LinearLayout>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u4ee5\u4e0b\u4ee3\u7801\u4e3a\u5728Activity\u4e2d\u5b9e\u73b0\u63a5\u53e3\uff0c\u5e76\u4e14\u7ed1\u5b9a\u5728Button\u6309\u94ae\u4e0a\uff1a
\npackage com.wjy.usersrc;
\nimport android.app.Activity;
\nimport android.os.Bundle;
\nimport android.view.View;
\nimport android.view.View.OnClickListener;
\nimport android.widget.Button;
\nimport android.widget.TextView;
\n\u00a0
\npublic class TestActivity extends Activity implements OnClickListener {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 @Override
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 public void onCreate(Bundle savedInstanceState) {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 super.onCreate(savedInstanceState);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 setContentView(R.layout.main);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Button mybutton = (Button) findViewById(R.id.mybutton);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 mybutton.setOnClickListener(this);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 @Override
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 public void onClick(View v) {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 switch (v.getId()) {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 case R.id.mybutton:
\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 TextView mytext = (TextView) findViewById(R.id.mytext);
\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 mytext.setText("\u4f60\u597d\uff01");
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\n}[\/java]
\n\u914d\u7f6e\u6587\u4ef6AndroidManifest.xml\u4ee3\u7801\u5982\u4e0b\uff1a
\n[java]<?xml version="1.0" encoding="utf-8"?>
\n<manifest xmlns:android="http:\/\/schemas.android.com\/apk\/res\/android"
\n\u00a0\u00a0\u00a0 package="com.wjy.usersrc"
\n\u00a0\u00a0\u00a0 android:versionCode="1"
\n\u00a0\u00a0\u00a0 android:versionName="1.0" >
\n\u00a0\u00a0\u00a0 <uses-sdk android:minSdkVersion="8" \/>
\n\u00a0\u00a0\u00a0 <application
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 android:icon="@drawable\/ic_launcher"
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 android:label="@string\/app_name" >
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <activity
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 android:name=".TestActivity"
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 android:label="@string\/app_name" >
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <intent-filter>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <action android:name="android.intent.action.MAIN" \/>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <category android:name="android.intent.category.LAUNCHER" \/>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/intent-filter>
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/activity>
\n\u00a0\u00a0\u00a0 <\/application>
\n<\/manifest>[\/java]
\n\u8fd0\u884c\u524d\u540e\u5bf9\u6bd4\u5982\u56fe2\u6240\u793a\uff1a<\/p>\n

\u56fe2 \u8fd0\u884c\u524d\u540e\u7ed3\u679c\u5bf9\u6bd4
\n\u4ece\u4e0a\u9762\u5b9e\u73b0\u8fc7\u7a0b\u53ef\u4ee5\u770b\u51fa\uff0c\u5b9e\u73b0\u63a5\u53e3\u5230\u8fbe\u5bf9\u4e8b\u4ef6\u7684\u5904\u7406\u4e3b\u8981\u662f\u7ee7\u627f\u5e76\u5b8c\u6210OnClickListener\u63a5\u53e3\u4e2d\u7684onClick\u65b9\u6cd5\uff0c\u5e76\u4e14\u5c06\u5176\u7ed1\u5b9a\u5728\u4e8b\u4ef6\u6e90\u4e2d\uff0c\u4ece\u800c\u8fbe\u5230\u4e8b\u4ef6\u5904\u7406\u7684\u6548\u679c\u3002
\n2\u3001\u5185\u90e8\u7c7b\u4e8b\u4ef6\u5904\u7406\u6a21\u578b
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u6211\u4eec\u5c06\u8fd0\u7528\u63a5\u53e3\u7c7b\u5b9e\u73b0\u4e8b\u4ef6\u5904\u7406\u6a21\u578b\u4e2d\u7684\u5e03\u5c40\u6587\u4ef6\u548c\u914d\u7f6e\u6587\u4ef6\uff0c\u4e3b\u8981\u662f\u5bf9Activity\u4e2d\u7684\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\u8fdb\u884c\u6539\u9020\uff0c\u8fd9\u6837\u5199\u4e5f\u6709\u5229\u76ca\u6211\u4eec\u5b66\u4e60\u3002
\n\u5185\u90e8\u7c7b\u4e8b\u4ef6\u5904\u7406\u6a21\u578b\u7684Activity\u4ee3\u7801\u5982\u4e0b\uff1a
\n[java]package com.wjy.usersrc;
\n\u00a0
\nimport android.app.Activity;
\nimport android.os.Bundle;
\nimport android.view.View;
\nimport android.view.View.OnClickListener;
\nimport android.widget.Button;
\nimport android.widget.TextView;
\n\u00a0
\npublic class TestActivity extends Activity {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 TextView mytext = null;
\n\u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 @Override
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 public void onCreate(Bundle savedInstanceState) {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 super.onCreate(savedInstanceState);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 setContentView(R.layout.main);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Button mybutton = (Button) findViewById(R.id.mybutton);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 mytext = (TextView) findViewById(R.id.mytext);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 mybutton.setOnClickListener(new clicklistener());
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\n\u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 class Clicklistener implements OnClickListener {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 @Override
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 public void onClick(View v) {
\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 switch (v.getId()) {
\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 case R.id.mytext:
\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\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 mytext.setText("\u4f60\u597d");
\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 }
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\n}[\/java]
\n\u5907\u6ce8\uff1aClicklistener\u7c7b\u4e5f\u53ef\u4ee5\u505a\u6210\u4e00\u4e2a\u666e\u901a\u7684\u7c7b\uff0c\u4e0d\u4e00\u5b9a\u5fc5\u987b\u505a\u6210\u5185\u90e8\u7c7b\uff0c\u505a\u6210\u666e\u901a\u7c7b\u5b8c\u5168\u4e0e\u5185\u90e8\u7c7b\u6548\u679c\u4e00\u6837\u3002
\n3\u3001\u533f\u540d\u5185\u90e8\u7c7b\u4e8b\u4ef6\u5904\u7406\u6a21\u578b
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u5176\u5b9e\u5185\u533f\u540d\u5185\u90e8\u7c7b\u5904\u7406\u65b9\u5f0f\u5728\u5b98\u65b9\u91c7\u7528\u7684\u6e90\u4ee3\u7801\u4e2d\u4e5f\u5e94\u7528\u975e\u5e38\u591a\uff0c\u4e0b\u9762\u5c06\u4ee5\u4e0a\u4e8b\u4ef6\u5904\u7406\u8fc7\u7a0b\u901a\u8fc7\u533f\u540d\u5185\u90e8\u7c7b\u5b9e\u73b0\uff0c\u5b83\u7684\u5e03\u5c40\u6587\u4ef6\u548c\u914d\u7f6e\u6587\u4ef6\u4e0e\u524d\u9762\u5e94\u7528\u7684\u4e00\u6837\uff0c\u53ea\u662f\u5728Activity\u4e2d\u7684\u4e8b\u4ef6\u5904\u7406\u4ee3\u7801\u6709\u6240\u4e0d\u540c\uff0c\u5176\u4ee3\u7801\u5982\u4e0b\uff1a
\n[java]package com.wjy.usersrc;
\n\u00a0
\nimport android.app.Activity;
\nimport android.os.Bundle;
\nimport android.view.View;
\nimport android.view.View.OnClickListener;
\nimport android.widget.Button;
\nimport android.widget.TextView;
\n\u00a0
\npublic class TestActivity extends Activity {
\n\u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 @Override
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 public void onCreate(Bundle savedInstanceState) {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 super.onCreate(savedInstanceState);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 setContentView(R.layout.main);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Button mybutton = (Button) findViewById(R.id.mybutton);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 final TextView mytext = (TextView) findViewById(R.id.mytext);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 mybutton.setOnClickListener(new OnClickListener() {
\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 @Override
\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 public void onClick(View v) {
\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\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 switch (v.getId()) {
\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\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 case R.id.mytext:
\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\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 mytext.setText("\u4f60\u597d\uff01");
\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\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\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 }
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 });
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\n}[\/java]
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u901a\u8fc7\u4ee5\u4e0a\u4e09\u79cd\u65b9\u5f0f\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\uff0c\u4e8b\u4ef6\u5904\u7406\u7684\u6a21\u578b\u90fd\u662f\u5b9e\u73b0\u63a5\u53e3\u4e2d\u7684onClick\u65b9\u6cd5\uff0c\u5e76\u4e14\u7ed1\u5b9a\u4e8e\u7279\u5b9a\u7684\u4e8b\u4ef6\u6e90\uff0c\u4ece\u800c\u8fbe\u5230\u4e8b\u4ef6\u7684\u5904\u7406\u3002\u00a0\u00a0\u00a0\u00a0 \u5176\u4e2d\uff0c\u63a5\u53e3\u5b9e\u73b0\u65b9\u6cd5\u548c\u5185\u90e8\u7c7b\u90fd\u662f\u901a\u8fc7\u7ee7\u627f\u63a5\u53e3OnClickListener\u4e2d\u7684onClick\u65b9\u6cd5\uff1b\u533f\u540d\u5185\u90e8\u7c7b\u5b9e\u73b0\u65b9\u6cd5\u5219\u662f\u901a\u8fc7\u8986\u76d6onClick\u65b9\u6cd5\u3002<\/p>\n

\u00a0Android\u8fd8\u4e2d\u8fd8\u6709\u4e00\u79cd\u66f4\u7b80\u5355\u7684\u7ed1\u5b9a\u4e8b\u4ef6\u76d1\u542c\u5668\u7684\u65b9\u5f0f\uff0c\u76f4\u63a5\u5728\u754c\u9762\u5e03\u5c40\u4e2d\u4e3a\u6307\u5b9a\u7684\u6807\u7b7e\u7ed1\u5b9a\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\u3002
\n\u5982\uff1aandroid:onClick=”clickHandler”\uff0c\u8fd9\u6837\u5c31\u610f\u5473\u7740\u5f00\u53d1\u8005\u9700\u8981\u5728\u8be5\u754c\u9762\u5e03\u5c40\u5bf9\u5e94\u7684Activity\u4e2d\u5b9a\u4e49\u4e00\u4e2avoid clickHandler(View source)\uff0c\u8be5\u65b9\u6cd5\u5c06\u4f1a\u5904\u7406\u8be5\u6309\u94ae\u4e0a\u7684\u5355\u51fb\u4e8b\u4ef6\u3002
\n\u4e0b\u9762\u6211\u4eec\u6765\u770b\u4e00\u6bb5Java\u4ee3\u7801\uff1a<\/p>\n

[java]public class Ex003_01Activity extends Activity { \u00a0
\n\u00a0\u00a0\u00a0 \/** Called when the activity is first created. *\/ \u00a0
\n\u00a0\u00a0\u00a0 @Override \u00a0
\n\u00a0\u00a0\u00a0 public void onCreate(Bundle savedInstanceState) { \u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 super.onCreate(savedInstanceState); \u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 setContentView(R.layout.main); \u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/\u5b9a\u4e49\u4e00\u4e2a\u4e8b\u4ef6\u7684\u5904\u7406\u65b9\u6cd5\u00a0\u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/\u8f7b\u91cdsource\u53c2\u6570\u4ee3\u8868\u4e8b\u4ef6\u6e90\u00a0\u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 public void clickHandler(View source){ \u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 TextView show=(TextView)findViewById(R.id.tv); \u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 show.setText("bn\u6309\u94ae\u88ab\u70b9\u51fb\u4e86"); \u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 } \u00a0
\n\u00a0\u00a0\u00a0 } \u00a0
\n} \u00a0
\n\u00a0[\/java]<\/p>\n

\u4e8c\u3001\u57fa\u4e8e\u56de\u8c03\u4e8b\u4ef6\u5904\u7406
\n\u00a0\u00a0\u00a0 \u4ece\u4ee3\u7801\u7684\u5b9e\u73b0\u7684\u89d2\u5ea6\u6765\u770b\uff0c\u57fa\u4e8e\u56de\u8c03\u7684\u4e8b\u4ef6\u5904\u7406\u6a21\u578b\u66f4\u52a0\u7b80\u5355\u3002\u5982\u679c\u8bf4\u4e8b\u4ef6\u76d1\u542c\u5236\u662f\u4e00\u79cd\u59d4\u6258\u5f0f\u7684\u4e8b\u4ef6\u5904\u7406\uff0c\u90a3\u4e48\u56de\u8c03\u673a\u5236\u6070\u597d\u4e0e\u4e4b\u76f8\u53cd\uff1a\u5bf9\u4e8e\u57fa\u4e8e\u56de\u8c03\u673a\u5236\u7684\u4e8b\u4ef6\u5904\u7406\u6a21\u578b\u6765\u8bf4\uff0c\u4e8b\u4ef6\u6e90\u4e0e\u4e8b\u4ef6\u76d1\u542c\u5668\u662f\u7edf\u4e00\u7684\u3002\u4e3a\u4e86\u4f7f\u7528\u56de\u8c03\u673a\u5236\u7c7b\u5904\u7406GUI\u7ec4\u4ef6\u4e0a\u6240\u53d1\u751f\u7684\u4e8b\u4ef6\uff0c\u6211\u4eec\u9700\u8981\u4e3a\u8be5\u7ec4\u4ef6\u63d0\u4f9b\u5bf9\u5e94\u7684\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5–\u800cJava\u53c8\u662f\u4e00\u79cd\u9759\u6001\u8bed\u8a00\uff0c\u6211\u4eec\u65e0\u6cd5\u4e3a\u67d0\u4e2a\u5bf9\u8c61\u52a8\u6001\u7684\u6dfb\u52a0\u65b9\u6cd5\uff0c\u56e0\u6b64\u53ea\u80fd\u7ee7\u627fGUI\u7ec4\u4ef6\u7c7b\uff0c\u5e76\u91cd\u5199\u8be5\u7ec4\u4ef6\u7c7b\u7684\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002
\n\u4e3a\u4e86\u5b9e\u73b0\u56de\u8c03\u673a\u5236\u7684\u4e8b\u4ef6\u5904\u7406\uff0cAndroid\u4e3a\u6240\u6709\u7684GUI\u7ec4\u4ef6\u90fd\u63d0\u4f9b\u4e86\u4e00\u4e9b\u4e8b\u4ef6\u5904\u7406\u7684\u56de\u8c03\u65b9\u6cd5\uff0c\u4ee5View\u4e3a\u4f8b\uff0c\u8be5\u7c7b\u5305\u542b\u5982\u4e0b\u65b9\u6cd5\uff1a
\nboolean onKeyDown(int keyCode,KeyEvent event):\u5f53\u7528\u6237\u5728\u8be5\u7ec4\u4ef6\u4e0a\u6309\u4e0b\u67d0\u4e2a\u952e\u65f6\u89e6\u53d1\u7684\u65b9\u6cd5\u3002
\nboolean onKeyLongPress(int keyCode,KeyEvent event)\uff1a\u5f53\u7528\u6237\u5728\u8be5\u7ec4\u4ef6\u4e0a\u957f\u6309\u67d0\u4e2a\u6309\u94ae\u65f6\u89e6\u53d1\u8be5\u65b9\u6cd5\u3002
\nboolean onKeyShortcut(int keyCode,KeyEvent event)\uff1a \u5f53\u4e00\u4e2a\u5feb\u6377\u952e\u4e8b\u4ef6\u53d1\u751f\u65f6\u89e6\u53d1\u8be5\u653e\u8fc7\u3002
\nboolean onKeyUp(int keyCode,KeyEvent event)\uff1a\u5f53\u7528\u6237\u5728\u8be5\u7ec4\u4ef6\u4e0a\u677e\u5f00\u67d0\u4e2a\u6309\u952e\u65f6\u89e6\u53d1\u8be5\u65b9\u6cd5
\nboolean onTouchEvent(MotionEvent event)\uff1a\u5f53\u7528\u6237\u5728\u8be5\u7ec4\u4ef6\u4e0a\u89e6\u53d1\u89e6\u6478\u5c4f\u4e8b\u4ef6\u65f6\u89e6\u53d1\u8be5\u65b9\u6cd5\u3002
\nboolean onTrackballEventI(MotionEvent event)\uff1a\u5f53\u7528\u6237\u5728\u8be5\u7ec4\u4ef6\u4e0a\u89e6\u53d1\u8f68\u8ff9\u7403\u5c4f\u4e8b\u4ef6\u65f6\u89e6\u53d1\u8be5\u4e8b\u4ef6\u3002
\n\u4e0b\u9762\u6211\u4eec\u6765\u770b\u4e00\u6bb5\u4ee3\u7801\uff1a
\n[java]
\npublic class MyButton extends Button \u00a0
\n{ \u00a0
\n\u00a0\u00a0\u00a0 public MyButton(Context context , AttributeSet set) \u00a0
\n\u00a0\u00a0\u00a0 { \u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 super(context , set); \u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ TODO Auto-generated constructor stub \u00a0
\n\u00a0\u00a0\u00a0 } \u00a0
\n\u00a0\u00a0\u00a0 @Override \u00a0
\n\u00a0\u00a0\u00a0 public boolean onKeyDown(int keyCode, KeyEvent event) \u00a0
\n\u00a0\u00a0\u00a0 { \u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 super.onKeyDown(keyCode , event); \u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Log.v("-crazyit.org-" , "the onKeyDown in MyButton"); \u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/\u8fd4\u56detrue\uff0c\u8868\u660e\u8be5\u4e8b\u4ef6\u4e0d\u4f1a\u5411\u5916\u6269\u6563\u00a0\u00a0
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return true; \u00a0
\n\u00a0\u00a0\u00a0 } \u00a0
\n} \u00a0[\/java]
\n\u00a0
\n\u4e0a\u9762\u7684\u4ee3\u7801\u6211\u4eec\u91cd\u5199\u4e86Button\u7c7b\u7684onKeyDown(int keyCode,KeyEvent event)\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u5c06\u4f1a\u8d1f\u8d23\u5904\u7406\u6309\u94ae\u4e0a\u7684\u952e\u76d8\u4e8b\u4ef6\u3002
\n\u57fa\u4e8e\u56de\u8c03\u7684\u4e8b\u4ef6\u4f20\u64ad
\n\u00a0\u00a0\u00a0 \u51e0\u4e4e\u6240\u6709\u7684\u57fa\u4e8e\u56de\u8c03\u7684\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5\u90fd\u6709\u4e00\u4e2aboolean\u7c7b\u578b\u7684\u8fd4\u56de\u503c\uff0c\u8be5\u8fd4\u56de\u503c\u7528\u4e8e\u6807\u8bc6\u8be5\u5904\u7406\u65b9\u6cd5\u662f\u5426\u80fd\u5b8c\u5168\u5904\u7406\u8be5\u4e8b\u4ef6\uff1a
\n1.\u5982\u679c\u8fd4\u56detrue\uff0c\u5219\u8868\u660e\u8be5\u5904\u7406\u65b9\u6cd5\u5df2\u5b8c\u5168\u5904\u7406\u4e86\u8be5\u4e8b\u4ef6\uff0c\u8be5\u4e8b\u4ef6\u4e0d\u4f1a\u88ab\u4f20\u64ad\u51fa\u53bb\u3002
\n2.\u5982\u679c\u8fd4\u56defalse\uff0c\u8868\u660e\u8be5\u5904\u7406\u65b9\u6cd5\u672a\u5b8c\u5168\u5904\u7406\u8be5\u4e8b\u4ef6\uff0c\u8be5\u4e8b\u4ef6\u4f1a\u4f20\u64ad\u51fa\u53bb\u3002
\n\u00a0\u00a0\u00a0 \u5bf9\u4e8e\u57fa\u4e8e\u56de\u8c03\u7684\u4e8b\u4ef6\u5904\u7406\u4f20\u64ad\u800c\u8a00\uff0c\u67d0\u7ec4\u4ef6\u4e0a\u6240\u53d1\u751f\u7684\u4e8b\u60c5\u4e0d\u4ec5\u6fc0\u53d1\u8be5\u7ec4\u4ef6\u4e0a\u7684\u56de\u8c03\u65b9\u6cd5\uff0c\u4e5f\u4f1a\u89e6\u53d1\u8be5\u7ec4\u4ef6\u6240\u5728\u7684Activity\u7684\u56de\u8c03\u65b9\u6cd5\u2014\u2014\u53ea\u8981\u4e8b\u4ef6\u80fd\u4f20\u64ad\u5230\u8be5Activity\u3002<\/p>\n

\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"

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