https://developer.android.google.cn/reference/android/car/CarAppFocusManager.OnAppFocusChangedListener?authuser=0
CarAppFocusManager.OnAppFocusChangedListener | API reference | Android Developers
api referenceandroiddevelopers
https://developer.android.com/reference/android/car/CarAppFocusManager.OnAppFocusChangedListener?authuser=7
CarAppFocusManager.OnAppFocusChangedListener | API reference | Android Developers
api referenceandroiddevelopers