BroadcastReceiver 8.0静态注册大部分取消，动态注册，有序广播

android 8.0 移除静态大部分注册广播

官方地址

动态注册广播，然后发送广播

效果

MainActivity.java (注册广播，和注册点击事件)

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        MyReceiver myReceiver = new MyReceiver();
        IntentFilter filter = new IntentFilter();
        filter.addAction("android.intent.action.MY_RECEIVER");
        registerReceiver(myReceiver,filter);
    }
    //    发送广播
    public void send(View view) {
        Intent intent = new Intent("android.intent.action.MY_RECEIVER");
        intent.putExtra("broadcastmsg","你好，世界");
        sendBroadcast(intent);
    }

MyReceiver.java(接受并弹出吐司)

public class MyReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        String strMsg = intent.getStringExtra("broadcastmsg");
        Toast.makeText(context, strMsg, Toast.LENGTH_SHORT).show();
        Log.i("MyReceiver","接受到了");
    }
}

发送有序广播

MainActivity.java

 protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
//        2. 动态注册
        MyReceiver myReceiver = new MyReceiver();
        MyReceiver2 myReceiver2 = new MyReceiver2();
        IntentFilter filter = new IntentFilter();
        filter.addAction("android.intent.action.MY_RECEIVER");
        registerReceiver(myReceiver, filter);
        registerReceiver(myReceiver2, filter);
    }

    //    发送广播
    public void send(View view) {
        Intent intent = new Intent(action);
        intent.putExtra("broadcastmsg", "你好，世界");
        sendOrderedBroadcast(intent, null);
    }

MyReciver1.java

public class MyReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        Log.i("MyReceiver","接受到了1");
        abortBroadcast(); // 禁止向下广播
    }
}

MyReciver2.java

public class MyReceiver2 extends BroadcastReceiver {
    @Override
    public void onReceive(final Context context, Intent intent) {
        Log.i("MyReceiver2","接受到了2");
    }
}

解除注册：

unregisterReceiver(receiver);

未解决事件

1. 动态设置广播优先级