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 {

	private	MyBroadcastReceiver mBroadcastReceiver;
	
	//频道号
	private	final	String chanel="com.";//过滤器需要的字段（tag）
	
	
	@Override
	protected 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() {
			
			@Override
			public 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);
	}
	
	@Override
	public	void	onDestroy(){
		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{

		@Override
		public 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）
	@Override
	protected 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() {
			
			@Override
			public 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{

		@Override
		public 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>