广播 收音机

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<span style="font-size:18px;">动态广播：</span>

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<span style="font-size:18px;">package com.example.boradcast;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.util.Log;import android.view.View;import android.widget.Button;public class MainActivity extends Activity {privateMyBroadcastReceiver mBroadcastReceiver;//频道号privatefinalString chanel="com.";//过滤器需要的字段（tag）@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);final Activity activity=this;Button button=(Button) findViewById(R.id.button);button.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {//发送广播（比如，某个广播电台在Chanel的频道发送节目）Intent intent=new Intent();intent.setAction(chanel);activity.sendBroadcast(intent);}});//初始化广播接收器(搞到一台收音机，开始准备接收音乐广播频道的音乐节目)mBroadcastReceiver=new MyBroadcastReceiver();//过滤器（选定音乐频道）IntentFilter filter=new IntentFilter();filter.addAction(chanel);//注册（旋转收音机的选台按钮，选定频道。开始接收音乐）registerReceiver(mBroadcastReceiver, filter);}@OverridepublicvoidonDestroy(){super.onDestroy();//注销广播接收（关闭收音机）unregisterReceiver(mBroadcastReceiver);}//创建广播接收器（收音机待命中。。。）private class MyBroadcastReceiver extends BroadcastReceiver{@Overridepublic void onReceive(Context context, Intent intent) {Log.d("广播测试","收到广播！");}}}</span>

静态广播：

<span style="font-size:18px;">package com.hx.gb;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.Button;public class MainActivity extends Activity {private final String action = "com.xx";//过滤器需要的字段（tag）@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);final Activity activity = this;Button button = (Button) findViewById(R.id.button);button.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {//发送广播Intent intent = new Intent();intent.setAction(action);    activity.sendBroadcast(intent);}});}}</span>

<span style="font-size:18px;">package com.hx.gb;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.util.Log;//创建广播接收器 public class MyBroadcastReceiver extends BroadcastReceiver{@Overridepublic void onReceive(Context context, Intent intent ) {Log.d("广播测试","收到广播！");} }</span>

<span style="font-size:18px;"><?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.hx.gb"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="15"        android:targetSdkVersion="15" />    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity            android:name=".MainActivity"            android:label="@string/app_name" >            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>                <span style="color:#ff0000;"><receiver             android:name="com.hx.gb.MyBroadcastReceiver"             >            <intent-filter>                <action android:name="com.xx" >                </action>            </intent-filter>                    </receiver></span>    </application></manifest></span>