How to update the UI of Activity from BroadCastReceiver

Question

I am learning Android concepts Activity and BroadCastReceiver. I want to update the content of Activity from the Br

Answer 1

Yes its possible. This is what i do. Class i send the broadcast from (BackgroundActivity.java):

public static final String BROADCAST_BUFFER_SEND_CODE = "com.example.SEND_CODE";

onCreate(){
   bufferIntentSendCode = new Intent(BROADCAST_BUFFER_SEND_CODE);
}

private void sendBufferingBroadcastSendCode() {
   bufferIntentSendCode.putExtra("buffering", "1");
   sendBroadcast(bufferIntentSendCode);
}

The class it will receive the broadcast(SendCode.java):

onResume(){
        registerReceiver(broadcastBufferReceiver, new IntentFilter(BackgroundActivity.BROADCAST_BUFFER_SEND_CODE));
}

// set up broadcast receiver
private BroadcastReceiver broadcastBufferReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent bufferIntent) {
        SendCode.this.LoadMessages(alarmNumber);
    }
};

I unregister it in onPause

this.unregisterReceiver(broadcastBufferReceiver);