实现背景半透明的 Android Activity？How to get appcompat translucent theme with support actionbar？通过修改 theme 的某些属性字段值来实现。 #tags: android-activity

translucent_theme_activity.xml

<!--Refer to: http://stackoverflow.com/questions/20862258/android-how-to-get-appcompat-translucent-type-theme-with-support-actionbar-->

<!-- /res/values/styles.xml -->
<style name="Theme.AppCompat.Translucent">
    <item name="android:windowNoTitle">true</item>
    <item name="android:windowBackground">@android:color/transparent</item>
    <item name="android:colorBackgroundCacheHint">@null</item>
    <item name="android:windowIsTranslucent">true</item>
    <item name="android:windowAnimationStyle">@android:style/Animation</item>
</style>

<!-- AndroidManifest.xml -->
<activity android:name=".TranslucentThemeActivity"
    android:theme="@style/Theme.AppCompat.Translucent"/>