BroadCastRecevicer有序广播和无序广播的编写

MainActivity3.java  发送广播意图的Activity

 

public class MainActivity3 extends Activity{
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main3);
	}
	//发送无序广播--新闻联播
	public void click(View view){
		Intent intent=new Intent();
		intent.setAction("com.example.bro");
		sendBroadcast(intent);
		
	}
	//发送有序广播--中央文件
     public void click2(View view){
    	Intent intent=new Intent();
 		intent.setAction("com.example.bro");
 	    sendOrderedBroadcast(intent, null, null, null, 0, "给农民兄弟的10000元", null);
		
	}


}

 

在Manifest.xml文件中注册广播：

 <receiver 
            android:name="com.example.brocastreceiverdemo.Level1Broadcast">
            <intent-filter android:priority="1000">
                <action android:name="com.example.bro"/>
            </intent-filter>
        </receiver>
        <receiver 
            android:name="com.example.brocastreceiverdemo.Level1Broadcast">
            <intent-filter android:priority="1000">
                <action android:name="com.example.bro"/>
            </intent-filter>
        </receiver>
        <receiver 
            android:name="com.example.brocastreceiverdemo.Level2Broadcast">
            <intent-filter android:priority="500">
                <action android:name="com.example.bro"/>
            </intent-filter>
        </receiver>
        <receiver 
            android:name="com.example.brocastreceiverdemo.Level3Broadcast">
            <intent-filter android:priority="100">
                <action android:name="com.example.bro"/>
            </intent-filter>
        </receiver>
        <receiver 
            android:name="com.example.brocastreceiverdemo.Level4Broadcast">
            <intent-filter android:priority="-1000">
                <action android:name="com.example.bro"/>
            </intent-filter>
        </receiver>

 

 3.xml布局文件：

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >
    
    <Button 
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="发送无序广播"
        android:onClick="click"
        />
    
      <Button 
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="发送序广有播"
        android:onClick="click2"
        />
    
    
    

</LinearLayout>

 

4. 四个具体的brocastreceiver 类：

public class Level1Broadcast extends BroadcastReceiver {

	@Override
	public void onReceive(Context arg0, Intent arg1) {
		// TODO Auto-generated method stub
		//  abortBroadcast();//发无序广播，此api不生效
          System.out.println("中央发给农民兄弟的10000元钱");
          
	}

}

 

public class Level2Broadcast extends BroadcastReceiver {

	@Override
	public void onReceive(Context arg0, Intent arg1) {
		// TODO Auto-generated method stub
		 System.out.println("省政府发给农民兄弟的5000元钱");
		  abortBroadcast();//发无序广播，此api不生效
	}

}

 

public class Level3Broadcast extends BroadcastReceiver {

	@Override
	public void onReceive(Context arg0, Intent arg1) {
		// TODO Auto-generated method stub
		 System.out.println("县政府发给农民兄弟的2500元钱");
	}

}

 

public class Level4Broadcast extends BroadcastReceiver {

	@Override
	public void onReceive(Context arg0, Intent arg1) {
		// TODO Auto-generated method stub
		 System.out.println("乡政府发给农民兄弟的1000元钱");
	}

}