Broadcast Receiver Still Running after app close - Android

Question

I'm using some code from this tutorial on how to receive SMS messages:

The code works perfectly, and does exactly what I want.

I am having 1 issue with it.

I want my app to run in the background, but when it's closed I want it to stop intercepting SMS messages.

My question is, why is my app still intercepting SMS messages after it's been closed?

I guess I have to find a "on close" handler and close the Broadcast Receiver then. (If there is a "on close" event handler..?).

If anyone can provide some insight I would be very grateful. Thanks!

Answer 1

By putting your BroadcastReceiver in your Manifest, it, by default, is always active. Therefore if you want it to only run while your Activity is shown, you'll want to enable/disable your BroadcastReceiver when your Activity resumes/pauses:

public void onResume()
{
    ComponentName component=new ComponentName(this, TextMessageReceiver.class);
    getPackageManager()
        .setComponentEnabledSetting(component,
            PackageManager.COMPONENT_ENABLED_STATE_ENABLED,
            PackageManager.DONT_KILL_APP);
}

public void onPause()
{
    ComponentName component=new ComponentName(this, TextMessageReceiver.class);
    getPackageManager()
        .setComponentEnabledSetting(component,
            PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
            PackageManager.DONT_KILL_APP);
}

The alternative, is to declare your BroadcastReceiver in your Activity and then call registerReceiver and unregisterReceiver in the same lifecycle events.

Answer 2

ive looked around on here and this is the conclusion ive come to

try{
        unregisterReceiver(mybroadcast);
    }catch(IllegalArgumentException e){
        Log.d("reciever",e.toString());
    }

i would say override onDestroy() and put it in there

Answer 3

i would say override OnTerminate() on your application object and unregister your reciever there.

@Override
public void onTerminate() {
    unregisterReceiver(mybroadcast);
    super.onTerminate();
}