Broadcast Receiver Not Unregistering

I want to give the user the ability to unregister/register the broadcast receiver with the click of the button. When the button is pressed for the first time, the broadcast receive

Solution 1:

Your mReceiver value will always be equal to 1 because of these lines:

int mReceiver = 0;
            mReceiver++;

I assume that mReceiver is an instance variable, in which case it should just be:

            mReceiver++;

Better still, create a boolean value called isRegistered.

@OverridepublicvoidonClick(View v) {

            if (!isRegistered) {
                IntentFilterfilter=newIntentFilter(
                        Intent.ACTION_BATTERY_CHANGED);

                registerReceiver(receiver, filter);
                isRegistered = true;
            }
            else {
                unregisterReceiver(receiver);
                isRegistered = false;
            }

        }