Activity has leaked IntentReceiver

Create a custom receiver like this

class deliverReceiver extends BroadcastReceiver {     
@Override
 public void onReceive(Context context, Intent arg1) {
             switch (getResultCode())
             {
                 case Activity.RESULT_OK:
                     Toast.makeText(getBaseContext(), "SMS delivered", 
                             Toast.LENGTH_SHORT).show();
                     break;
                 case Activity.RESULT_CANCELED:
                     Toast.makeText(getBaseContext(), "SMS not delivered", 
                             Toast.LENGTH_SHORT).show();
                     break;                        
             }

         }
}

and a sent reciever like this..

class sentReceiver extends BroadcastReceiver {     
@Override
 public void onReceive(Context context, Intent arg1) {
             switch (getResultCode())
             {
                 case Activity.RESULT_OK:
                     Toast.makeText(getBaseContext(), "SMS sent", 
                             Toast.LENGTH_SHORT).show();
                     break;
                 case SmsManager.RESULT_ERROR_GENERIC_FAILURE:
                     Toast.makeText(getBaseContext(), "Generic failure", 
                             Toast.LENGTH_SHORT).show();
                     break;
                 case SmsManager.RESULT_ERROR_NO_SERVICE:
                     Toast.makeText(getBaseContext(), "No service", 
                             Toast.LENGTH_SHORT).show();
                     break;
                 case SmsManager.RESULT_ERROR_NULL_PDU:
                     Toast.makeText(getBaseContext(), "Null PDU", 
                             Toast.LENGTH_SHORT).show();
                     break;
                 case SmsManager.RESULT_ERROR_RADIO_OFF:
                     Toast.makeText(getBaseContext(), "Radio off", 
                             Toast.LENGTH_SHORT).show();
                     break;
             }


         }

now in sendSMS method after this

 PendingIntent deliveredPI = PendingIntent.getBroadcast(this, 0,
         new Intent(DELIVERED), 0);

put

registerReceiver(sentReceiver,SENT);
registerReceiver(deliverReceiver,DELIVERED);

Now override onpause and unregister for the receivers like this..

unregisterReceiver(sentReceiver);
unregisterReceiver(deliverReceiver);