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.

Thank you for your feedback

After further investigation, I found a suitable fix. Hera is a demo with and without the fix

Do you know when a fix will be available?

I can't make any promises but I estimate within the 2 next weeks if no other bug arise.

I don't think this issue has been fixed entirely. Yes it seems the style is applied, but it breaks the automatic colour change of the navigation bar and doesn't apply the scrim behind 3 button navigation.

Follow these steps to reproduce.

1. Create a new project (I used a bottom tab project for my base)
2. Implement basic instructions for SplashScreen (have some code snippits below)
3. Implement edge-to-edge as in this document https://developer.android.com/develop/ui/views/layout/edge-to-edge#java If your activity has a dark background, you'd think to set android:windowLightNavigationBar to false, but setting this attribute will stop the automatic contrast feature for the bottom buttons.

Important to note, this is NOT an issue when using the gesture based navigation. Seems to only impact 2 & 3 button navigation.

Here is some code to kickstart.

themes.xml

<resources xmlns:tools="http://schemas.android.com/tools">
    <!-- Base application theme. -->
    <style name="Theme.MyApplication" parent="Theme.AppCompat.DayNight.NoActionBar">
        <!-- Primary brand color. -->
        <item name="colorPrimary">@color/purple_500</item>
        <item name="colorPrimaryVariant">@color/purple_700</item>
        <item name="colorOnPrimary">@color/white</item>
        <!-- Secondary brand color. -->
        <item name="colorSecondary">@color/teal_200</item>
        <item name="colorSecondaryVariant">@color/teal_700</item>
        <item name="colorOnSecondary">@color/black</item>
        <!-- Status bar color. -->
        <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
        <item name="android:navigationBarColor">
            @android:color/transparent
        </item>
        <item name="android:windowLightNavigationBar">true</item>
        
    </style>

    <style name="Theme.App.Starting" parent="Theme.SplashScreen">
        <item name="windowSplashScreenBackground">@color/splashscreen_bg</item>
        <item name="postSplashScreenTheme">@style/Theme.MyApplication</item>

    </style>
</resources>

MainActivity

SplashScreen splashScreen = SplashScreen.installSplashScreen(this);
        super.onCreate(savedInstanceState);
        WindowCompat.setDecorFitsSystemWindows(getWindow(), false);

        binding = ActivityMainBinding.inflate(getLayoutInflater());
        setContentView(binding.getRoot());

        splashScreen.setOnExitAnimationListener(splashScreenViewProvider -> {
            final View splashScreenView = splashScreenViewProvider.getView();

            splashScreenView
                    .animate()
                    .setDuration(0)
                    // Hack to avoid automatic layout transitions
                    .setStartDelay(Math.min(0, 0))
                    .alpha(0.0f)
                    .setInterpolator(new AccelerateInterpolator())
                    .setListener(new AnimatorListenerAdapter() {
                        @Override
                        public void onAnimationEnd(Animator animation) {
                            super.onAnimationEnd(animation);
                            splashScreenViewProvider.remove();
                        }
                    }).start();
        });

Can confirm. It only works in version 1.0.0-alpha02. All other version after are broken when using exit animation.