android broadcast的使用



广播接收器

public class myReceiver extends BroadcastReceiver {
 @Override
 public void onReceive(Context context, Intent intent) {
   System.out.println("11111111111111");
  }

}

发送广播

bt.setOnClickListener(new OnClickListener() {
   
   @Override
   public void onClick(View arg0) {
    Intent intent = new Intent("com.ai");
    sendBroadcast(intent);
   }
  });

注册广播两种方式

第一种

    myReceiver rc = new myReceiver();
    IntentFilter filter = new IntentFilter("com.ai");
    registerReceiver(rc, filter);

第二种

     <receiver android:name="com.example.aa.myReceiver">
            <intent-filter>
                <action android:name="com.ai"/>
            </intent-filter>
        </receiver>