IssueTracker

The splash screen is dismissed as soon as the app is drawn and doesn't wait for the animation to finish which might be the reason why the animation doesn't repeat. At most, the icon will animate for the value set in windowSplashScreenAnimationDuration.

If that's not the case, can you please share your theme values and icon file? or at least a reproduction sample?

In the <objectAnimator tag, you need the repeat* attributes

<objectAnimator xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="1000"
    android:valueTo="200"
    android:valueType="floatType"
    android:propertyName="y"
    android:repeatCount="1"
    android:repeatMode="reverse"/>

https://developer.android.com/reference/android/animation/ObjectAnimator

In that case, you'd need to manually make you application repeat using other ObjecAnimator. Since the splash screen is supposed to be short lived, an animation shouldn't need to be repeated. If the loading time of your application is too high and require the use of some progress indicator, then I suggest to implement that in the app directly, ideally using skeletons loaders (https://medium.com/android-dev-nation/android-skeleton-loaders-1ae979a9d8c9)

That's definitely something worth discussing internally, I've added it to the list of thing to consider for the next version. Thanks for your feedback.

On Android 12 the splash screen icon won't be shown from when launching from Studio and notification. For deep links it will depend on the browser behavior (see comment#8). When the splash screen icon isn't shown, the 'OnExitAnimationListener' won't be called

This is out of control for the library and will be changed for Android T.

I am currently keeping the splashScreen visible until login state has been checked, then I either remove it and show login or perform an animation on the splashScreenView icon before starting the next activity. I believe the solution mentioned above would not let my animation finish?

See my current code below, is there a way to identify when the 'OnExitAnimationListener' will not be called and just do the same stuff (minus animation) after the loading is done? Id didn't find a way for an activity to see what options it was launched with for getting the value of 'android.activity.splashScreenStyle'.

installSplashScreen().let { splashScreen ->
    splashScreen.setKeepOnScreenCondition {
        !isLoadingDone
    }
    splashScreen.setOnExitAnimationListener { splashScreenView ->
        if (isLoggedIn) {
            val animSet = createSplashIconAnimSet(splashScreenView)
            animSet.doOnEnd {
                startMainActivityAndFinish()
            }
            animSet.start()
        } else {
            splashScreenView.remove()
        }
    }
}

I would do something like this instead, where you keep the splash screen visible and handle the animation on your main activity:

LoginActivity:

onCreate() {
    val splashScreen = installSplashScreen()

    splashScreen.setKeepOnScreenCondition {
        !isLoadingDone
    }
    
    doLoadingStuff()....
}

fun doLoadingStuff() {
   ... 
   if(isLoggedIn) {
     startMainActivityAndFinish()
   } else {
     isLoadingDone = true
     // Splash Screen will be removed autmatically
   }
}

MainActivity:

 onCreate() {
    val splashScreen = installSplashScreen()
    splashScreen.setOnExitAnimationListener { splashScreenView ->
            val animSet = createSplashIconAnimSet(splashScreenView)
            animSet.start()

Yep. Cop out is accurate.

This is not working on Android 12 / 13 on prod builds and we are setting the content view.

This is a one-activity, full-compose app.

As a result our users on Samsung devices cannot get past our splash screen on Android 12 and 13.

A fix for this is necessary.

#4 was not even true, the setOnExitAnimationListener will still get called even when declared before setContentView. It's just that in Android 12 and 13 when the app was launched via IDE or instrumentation the setOnExitAnimationListener will never get called, the worst part of this is it doesn't happen on Android 14 and above. So always check your app against each of the Android version you are covering since the new Android teams like to deliver breaking changes feature with half-baked solution just like the new edge to edge enforcement.