Android 12 Splash Screen API不适用于材料组件

Question

我一直在关注文档，但不幸的是，当使用Material Component作为应用程序的整体主题时，它没有包括自适应。

<style name="Theme.App" parent="Theme.MaterialComponents.DayNight">
<!-- Primary brand color. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryVariant">@color/colorPrimaryDark</item>
<item name="colorOnPrimary">@android:color/white</item>
<!-- Secondary brand color. -->
<item name="colorSecondary">@color/colorPrimary</item> <!--Fab color-->
<item name="colorOnSecondary">@color/colorAccent</item> <!--Fab icon color-->
<item name="colorSecondaryVariant">@color/colorAccentDark</item>
<!-- Status bar color. -->
<item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
<!-- Customize your theme here. -->
<!--<item name="tabStyle">@style/AppTabLayout</item>-->
<!-- The color for all other text including the menu -->
<item name="android:textColor">@color/colorPrimary</item>
<item name="android:textColorHighlight">@color/colorAccentDark</item>
<item name="android:windowAnimationStyle">@style/WindowAnimationTransition</item>
<item name="checkboxStyle">@style/AppCheckBoxStyle</item>
<item name="popupMenuBackground">@drawable/popup_bg_rounded</item>
<item name="materialAlertDialogTheme">@style/AppDialogTheme</item>
<item name="autoCompleteTextViewStyle">@style/AppCursor</item>
<item name="overlapAnchor">false</item>
<item name="android:dropDownVerticalOffset">?attr/actionBarSize</item>
<item name="android:forceDarkAllowed" tools:targetApi="q">false</item>
</style>
<style name="Theme.App.Starting" parent="Theme.SplashScreen">
<item name="windowSplashScreenBackground">
@color/whitePrimaryDark
</item>
<item name="postSplashScreenTheme">
@style/Theme.Cryptonian.NoActionBar
</item>
</style>

安卓清单

<activity
android:name=".presentation.MainActivity"
android:exported="true"
android:screenOrientation="portrait"
android:theme="@style/Theme.App.Starting"
android:windowSoftInputMode="adjustPan">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

它因错误而崩溃

Caused by: java.lang.IllegalArgumentException: The style on this component requires your app theme to be Theme.AppCompat (or a descendant).

有人面临同样的问题吗？

Answer 1

解决方案是在调用super.onCreate()和setContentView之前安装Splash Screen API

Answer 2

您需要更改以下内容：

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

到此：

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

postSplashScreenTheme需要获取应用程序主题。在显示启动屏幕后，你的应用程序主题wi