How to determine the status of the application, that it is minimized?

Question

Android

You need to determine that the application is minimized (depending on this, the application will perform different actions).

Answer 1

There is such a wonderful ActivityLifecycleCallbacks class. Here is a good example of usage: baroqueworksdev.blogspot.ru/2012/12/how-to-use-act...
The idea is this: in your class that implements ActivityLifecycleCallbacks, we start a counter that will count the number of started / stopped activities and the method a -for isAppInForeground().

private int startStatus = 0;
...
    @Override
    public void onActivityStarted(Activity activity) {
        ++startStatus;
    }

    @Override
    public void onActivityStopped(Activity activity) {
        --startStatus;
    }

    public boolean isAppInForeground() {
        return startStatus > 0;
    }

Answer 2

onPause
onWindowFocusChanged
here is the solution
well and explore

Answer 3

it, isn't it?

Answer 4

Only here is the trouble, onStop may not be called. The last method guaranteed to be called is onPause