CODEWITHSUNDEEP
androidbroadcastreceiverandroid-service
Jayesh Babu
Jayesh Babu

Reputation: 1449

How to prevent receiving broadcast message

I have a service which has a countdown timer. After the end of the countdown timer, this service sends a broadcast message. I use the following code to send the message:

Intent intent = new Intent("CancelEvents");
intent.putExtra("message", "cancelled");
LocalBroadcastManager.getInstance(TimerClass.this).sendBroadcast(intent);

I have another activity which has a broadcast receiver. This is the code I use to receive the broadcast message:

@Override
protected void onCreate(Bundle savedInstanceState)
{
     LocalBroadcastManager.getInstance(getApplicationContext()).registerReceiver(cancelReceiver,
            new IntentFilter("CancelEvents"));
}

private BroadcastReceiver cancelReceiver = new BroadcastReceiver()
{
    @Override
    public void onReceive(Context context, Intent intent)
    {
        String message = intent.getStringExtra("message");

        if (message.equals("cancelled"))
        {
            Toast.makeText(this,
                    "Your Ride Got Cancelled", Toast.LENGTH_LONG).show();
        }
    }
};

The receiving works fine, but the problem is the message is received by all other activities too which don't have a receiver. How to stop this?

Upvotes: 1

Views: 273

Answers (2)

kenny_k
kenny_k

Reputation: 3980

Move the Broadcast subscription code to a different part of your lifecycle.

@Override
protected void onStart()
{
    super.onStart();
LocalBroadcastManager.getInstance(getApplicationContext()).registerReceiver(cancelReceiver,
                    new IntentFilter("CancelEvents"));
        }

and

@Override
    public void onStop() {
        super.onStop();
        LocalBroadcastManager.getInstance(getApplicationContext()).unregisterReceiver(cancelReceiver);
    }

Explanation: Your Activity in in the background, but it is still subscribed, and is showing the Toast messages, not the other Activities.

Upvotes: 1

Mohd Saquib
Mohd Saquib

Reputation: 590

Unregister your broadcast by defining in onStop() callback of activity in which activity you have registered cancelReceiver in onCreate()...

@Override
    public void onStop() {
        super.onStop();
        LocalBroadcastManager.getInstance(getApplicationContext()).unregisterReceiver(cancelReceiver);
    }

Upvotes: 1

Related Questions