Question

This is the scenario…

1. App is opened
2. User clicks on a button that starts a service.
3. User presses home key and then long presses home key and clears application from task list.
4. Service continues to run, although app has closed.

How from the runnning service can I determine whether that app has been killed or not? Is this possible?

Answer 1

I think this what you are looking for:

 private boolean isAppRunning() {
    ActivityManager manager = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);
    for (RunningTaskInfo task : manager.getRunningTasks(Integer.MAX_VALUE)) {
        if ("com.example.YourLauncherActivityClassFullName".equals(task.baseActivity.getClassName())) {
            return true;
        }
    }
    return false;
}

The only thing you need to provide is full launcher activity class name of your app.