public class MainActivity extends AppCompatActivity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);//动态注册广播接受者,优先级高于静态注册IntentFilter intentFilter = new IntentFilter("BC_One");BC2 bc2 = new BC2();registerReceiver(bc2,intentFilter);}public void doClick(View v){switch (v.getId()){case R.id.button://普通广播Intent intent = new Intent();intent.putExtra("msg","这是一条普通广播");intent.setAction("BC_One");sendBroadcast(intent);break;case R.id.button2://有序广播Intent intent2 = new Intent();intent2.putExtra("msg","这是一条有序广播");intent2.setAction("BC_Two");sendOrderedBroadcast(intent2,null);break;case R.id.button3://异步广播 可以先发送再注册Intent intent3 = new Intent();intent3.putExtra("msg","这是一条异步广播");intent3.setAction("BC_Three");sendStickyBroadcast(intent3);IntentFilter intentFilter = new IntentFilter("BC_Three");BC3 bc = new BC3();registerReceiver(bc,intentFilter);break;default:break;}}
}//配置文件/** priority -- 优先级* 静态注册*/<receiver android:name=".BC1"><intent-filter android:priority="100"><action android:name="BC_One"/></intent-filter></receiver><!--<receiver android:name=".BC2">--><!--<intent-filter android:priority="200">--><!--<action android:name="BC_One"/>--><!--</intent-filter>--><!--</receiver>--><receiver android:name=".BC3"><intent-filter android:priority="200"><action android:name="BC_Two"/></intent-filter></receiver><receiver android:name=".BC4"><intent-filter android:priority="100"><action android:name="BC_Two"/></intent-filter></receiver>//普通广播接收
public class BC1 extends BroadcastReceiver{@Overridepublic void onReceive(Context context, Intent intent) {String s = intent.getStringExtra("msg");System.out.println("receive1收到的信息:"+s);}
}
public class BC2 extends BroadcastReceiver{@Overridepublic void onReceive(Context context, Intent intent) {String s = intent.getStringExtra("msg");System.out.println("receive2收到的信息:"+s);}
}//有序广播接收
public class BC3 extends BroadcastReceiver{@Overridepublic void onReceive(Context context, Intent intent) {String s = intent.getStringExtra("msg");System.out.println("receive3收到的信息:"+s);Bundle bundle = new Bundle();bundle.putString("test","拦截广播添加数据");setResultExtras(bundle);}
}
public class BC4 extends BroadcastReceiver{@Overridepublic void onReceive(Context context, Intent intent) {String s = intent.getStringExtra("msg");System.out.println("receive4收到的信息:"+s);Bundle bundle = getResultExtras(true);String s2 = bundle.getString("test");System.out.println("得到的处理结果是: "+s2);}
}//异步广播接收
public class BC5 extends BroadcastReceiver{@Overridepublic void onReceive(Context context, Intent intent) {System.out.println("收到异地广播");}
}