XML : Setting style android:windowIsTranslucent seems to conflict with windowAnimationStyle

I have the following style on in my style.xml and is a follow up to my question here Activity transition effects: slide in for the top activity and scale for the bottom activity:

  <style name="RevealTheme" parent="Theme.AppCompat.Light.NoActionBar">      <item name="android:windowBackground">@android:color/transparent</item>      <item name="android:windowIsTranslucent">true</item>      <item name="android:windowAnimationStyle">@style/ActivityAnimation</item>  </style>    <style name="ActivityAnimation" parent="@android:style/Animation">      <item name="android:activityOpenEnterAnimation">@anim/animation_in</item>      <item name="android:activityOpenExitAnimation">@anim/animation_out</item>      <item name="android:activityCloseEnterAnimation">@anim/animation_back_in</item>      <item name="android:activityCloseExitAnimation">@anim/animation_back_out</item>  </style>    

I have found that the style android:windowBackgroundconflicts with android:windowAnimationStyle and the animation is not fully displaying. If I include the above style as is in my style.xml and run my app, I get the following:

If I comment out the lines here:

  <style name="RevealTheme" parent="Theme.AppCompat.Light.NoActionBar">      <item name="android:windowBackground">@android:color/transparent</item>       <!--<item name="android:windowIsTranslucent">true</item> COMMENTED OUT-->      <item name="android:windowAnimationStyle">@style/ActivityAnimation</item>  </style>    <style name="ActivityAnimation" parent="@android:style/Animation">      <item name="android:activityOpenEnterAnimation">@anim/animation_in</item>      <item name="android:activityOpenExitAnimation">@anim/animation_out</item>      <item name="android:activityCloseEnterAnimation">@anim/animation_back_in</item>      <item name="android:activityCloseExitAnimation">@anim/animation_back_out</item>  </style>    

I don't understand why this is the case. I need the windowIsTranslucent for some of my other animations.

These are the xml animation class I'm using (thanks to Nikolai Doronin):

activity_in.xml:

  <?xml version="1.0" encoding="utf-8"?>  <set xmlns:android="http://schemas.android.com/apk/res/android">      <translate          android:fromXDelta="100%p"          android:toXDelta="0%p"          android:duration="@integer/activityAnimationTime">      </translate>  </set>    

activity_out.xml:

  <?xml version="1.0" encoding="utf-8"?>  <set xmlns:android="http://schemas.android.com/apk/res/android">      <scale          android:fromXScale="1.0"          android:toXScale="0.84"          android:fromYScale="1.0"          android:toYScale="0.84"          android:duration="@integer/activityAnimationTime"/>      <translate          android:fromYDelta="0%"          android:fromXDelta="0%"          android:toYDelta="8%"          android:toXDelta="16%"          android:duration="@integer/activityAnimationTime"/>        <alpha          android:fromAlpha="1.0"          android:toAlpha="0.25"          android:duration="@integer/activityAnimationTime"/>    </set>    

activity_back_in.xml:

  <?xml version="1.0" encoding="utf-8"?>  <set xmlns:android="http://schemas.android.com/apk/res/android">      <scale          android:fromXScale="0.84"          android:toXScale="1.0"          android:fromYScale="0.84"          android:toYScale="1.0"          android:duration="@integer/activityAnimationTime"/>      <translate          android:fromYDelta="8%"          android:fromXDelta="16%"          android:toYDelta="0%"          android:toXDelta="0%"          android:duration="@integer/activityAnimationTime"/>        <alpha          android:fromAlpha="0.25"          android:toAlpha="1.0"          android:duration="@integer/activityAnimationTime"/>    </set>    

activity_back_out.xml:

  <?xml version="1.0" encoding="utf-8"?>  <set xmlns:android="http://schemas.android.com/apk/res/android">      <translate          android:fromXDelta="0%p"          android:toXDelta="100%p"          android:duration="@integer/activityAnimationTime">      </translate>  </set>