LocalBroadcastManager

Posted 2020-10-04 荣超

LocalBroadcastManager mLocalBroadcastManager;
BroadcastReceiver mReceiver;

//注册通知
 mLocalBroadcastManager = LocalBroadcastManager.getInstance(this);

        IntentFilter filter = new IntentFilter();
        filter.addAction(ACTION_UPDATE);
        
        mReceiver = new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                if (intent.getAction().equals(ACTION_UPDATE)) {
                    callbackData.setText("Got update: " + intent.getIntExtra("value", 0));
                } 
            }
        };
        mLocalBroadcastManager.registerReceiver(mReceiver, filter);

//发送通知
mLocalBroadcastManager.sendBroadcast(new Intent(ACTION_UPDATE));

//注销通知
mLocalBroadcastManager.unregisterReceiver(mReceiver);

 仅接收本应用发送的通知，比较安全（替代BroadcastManager使用）