IssueTracker

URL: https://developer.android.com/guide/topics/ui/splash-screen/migrate#migrate_your_splash_screen_implementation

Go to step 4 where it states Call installSplashScreen in the starting activity before calling setContentView..

The snippet actually has an issue that I got a few crash reports for. It happens if you are using Fragments and an AppCompat theme.

After a config change occurs, the Fragments are restored when super.onCreate(savedInstanceState) is called.

That val splashScreen = installSplashScreen() call is responsible for changing the theme over. The Theme.SplashScreen does not have a value for R.styleable.AppCompatTheme_windowActionBar so when the Fragment restores, you get a crash "You need to use a Theme.AppCompat theme (or descendant) with this activity.");.

The fix I did was the following code

   override fun onCreate(savedInstanceState: Bundle?) {
       // Handle the splash screen transition.
       val splashScreen = installSplashScreen()

       super.onCreate(savedInstanceState)
       setContentView(R.layout.main_activity)

By moving the install call above super the theme changes before the Fragments are restored. It could be worth mentioning this in the documentation perhaps but it is subjective since you need to use an AppCompat theme / Fragments.