在看本文之前，假設(shè)你對(duì)于Android的廣播機(jī)制不是非常了解。建議先行閱讀我轉(zhuǎn)載的一篇博文：圖解 Android 廣播機(jī)制。

因?yàn)楸景咐容^簡(jiǎn)單，故直接在此貼出代碼，不做過多的闡述。

先上效果截圖：

MainActivity的代碼例如以下： package com.gc.testbroadcasedemo;import android.app.Activity; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.os.Bundle;import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TextView; /*** * @author Android將軍**/ public class MainActivity extends Activity {private Button mButton;private TextView mTextView;public static String ACTION_INTENT_TEST = "com.gc.broadcase.test";@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);mTextView = (TextView) findViewById(R.id.message_tv);mButton = (Button) findViewById(R.id.send_btn);mButton.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubIntent mIntent = new Intent(ACTION_INTENT_TEST);sendBroadcast(mIntent);}});registerMessageReceiver();}//在銷毀時(shí)要與廣播解綁@Overrideprotected void onDestroy() {unregisterReceiver(mMessageReceiver);super.onDestroy();}public MessageReceiver mMessageReceiver;public static String ACTION_INTENT_RECEIVER = "com.gc.broadcast.receiver";/*** 動(dòng)態(tài)注冊(cè)廣播*/public void registerMessageReceiver() {mMessageReceiver = new MessageReceiver();IntentFilter filter = new IntentFilter();filter.addAction(ACTION_INTENT_RECEIVER);registerReceiver(mMessageReceiver, filter);}public class MessageReceiver extends BroadcastReceiver {@Overridepublic void onReceive(Context context, Intent intent) {// TODO Auto-generated method stubif (intent.getAction().equals(ACTION_INTENT_RECEIVER)) {mTextView.setText(intent.getStringExtra("message"));}}} }
MyBroadCast的代碼例如以下：
package com.gc.testbroadcasedemo;import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.util.Log; /*** * @author Android將軍**/ public class MyBroadCast extends BroadcastReceiver{public MyBroadCast(){Log.v("BROADCAST_TAG", "MyBroadCast");}@Overridepublic void onReceive(Context context, Intent intent) {// TODO Auto-generated method stubLog.v("BROADCAST_TAG", "onReceive");Bundle bundle = intent.getExtras();if(intent.getAction().equals(MainActivity.ACTION_INTENT_TEST)){processCustomMessage(context, bundle);}}//send msg to MainActivityprivate void processCustomMessage(Context context, Bundle bundle) {Intent mIntent=new Intent(MainActivity.ACTION_INTENT_RECEIVER);mIntent.putExtra("message", "測(cè)試Broadcast與Activity之間的通信");context.sendBroadcast(mIntent);}} 案例project文件夾例如以下：

在AndroidManifest中靜態(tài)注冊(cè)MyBroadCast廣播。代碼例如以下：
<receiver android:name=".MyBroadCast"><intent-filter ><action android:name="com.gc.broadcase.test"/></intent-filter></receiver>轉(zhuǎn)載請(qǐng)注明出處：http://blog.csdn.net/android_jiangjun/article/details/39928243






本文轉(zhuǎn)自mfrbuaa博客園博客，原文鏈接：http://www.cnblogs.com/mfrbuaa/p/5261839.html，如需轉(zhuǎn)載請(qǐng)自行聯(lián)系原作者

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