BroadcastReceiver（二）手动注册注销receiver

1.在 AndroidManifest.xml 中删除 相关receiver的配置标签

2.手动的receiver代码 

public class LReceiver extends BroadcastReceiver {    //这里为何要用 intent.action. ？    public static final String ACTION = "com.example.kfk.lbroadcastreceiver.intent.action.LReceiver";//    public static final String ACTION = "com.example.kfk.lbroadcastreceiver.LReceiver";//也可以    public LReceiver() {    }    @Override    public void onReceive(Context context, Intent intent) {        System.out.println("接收器L 收到了消息："  + intent.getStringExtra("msg"));    }}

2.手动注册

<span style="white-space:pre"></span>receiver = new LReceiver();        IntentFilter filter = new IntentFilter(LReceiver.ACTION);        filter.setPriority(1);        registerReceiver(receiver,filter);

3.发送消息

<span></span>Intent i2 = new Intent(LReceiver.ACTION);//隐式启动        i2.putExtra("msg","回家睡觉！");        sendBroadcast(i2);//发送消息，不可被中断

4.手动注销

unregisterReceiver(receiver);