[M3/DynamicColors] Dynamic Colors not applied when SplashScreen API is used

Description:

When application or activity launcher theme inherits from Theme.SplashScreen and we set postSplashScreenTheme to a theme that inherits from Material3, it does not apply Dynamic Colors when we call DynamicColors.applyToActivitiesIfAvailable(this) on the Application class.

Expected behavior: Apply Dynamic colors.

Source code: https://github.com/serbelga/ToDometer/tree/feature/dynamicColors

Android API version: Android SDK 31 (Android 12)

Material Library version: 1.5.0

    <!-- Base application theme. -->
    <style name="Theme.ToDometer" parent="Theme.Material3.DayNight">
    ...
    </style>

    <style name="Theme.ToDometer.NoActionBar">
    ...
    </style>

    <style name="Theme.ToDometer.Starting" parent="Theme.SplashScreen">
        <item name="windowSplashScreenBackground">@color/navy</item>

        <item name="windowSplashScreenAnimatedIcon">@drawable/ic_launcher_foreground</item>
        <item name="windowSplashScreenAnimationDuration">2000</item>

        <item name="postSplashScreenTheme">@style/Theme.ToDometer.NoActionBar</item>
    </style>

AndroidManifest.xml

    <application
        android:name=".App"
        ...
-       android:theme="@style/Theme.ToDometer.NoActionBar">
+       android:theme="@style/Theme.ToDometer.Starting">

[axiel7]

I solved this issue by calling DynamicColors.applyToActivityIfAvailable(this) after installSplashScreen(). Don’t use DynamicColors.applyToActivitiesIfAvailable(this) in your Application class.

override fun onCreate(savedInstanceState: Bundle?) {
        installSplashScreen()
        DynamicColors.applyToActivityIfAvailable(this)
        
}

[drchen]

I don’t have access to your github link. Where do you call DynamicColors.applyToActivitiesIfAvailable(this) and installSplashScreen()?

You may want to avoid using postSplashScreenTheme since I guess it will override the dynamic color theme overlay we set. Or you can also try to set postSplashScreenTheme to ThemeOverlay.Material3.DynamicColors.DayNight and see if it works in your case?