implementation 'androidx.lifecycle:lifecycle-process:2.2.0'
public class ForegroundChecker implements LifecycleObserver {
private boolean isInForeground = false;
private ForegroundChecker() {
}
@OnLifecycleEvent(Lifecycle.Event.ON_STOP)
public void onRunInBackground() {
isInForeground = false;
}
@OnLifecycleEvent(Lifecycle.Event.ON_START)
public void onRunInForeground() {
isInForeground = true;
}
public boolean isInForeground() {
return isInForeground;
}
public static ForegroundChecker getInstance() {
return Singleton.INSTANCE;
}
private static class Singleton {
private static ForegroundChecker INSTANCE = new ForegroundChecker();
}
}
public class MyApp extends Application {
@Override
public void onCreate() {
super.onCreate();
initLifecycleObserver();
}
private void initLifecycleObserver() {
ProcessLifecycleOwner.get().getLifecycle().addObserver(ForegroundChecker.getInstance());
}
}
public class MainActivity extends AppCompatActivity {
private ForegroundChecker foregroundChecker;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
foregroundChecker = ForegroundChecker.getInstance();
}
}
