Question

我的style.xml中有以下格式，并在此处跟进我的问题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>

我发现样式android:windowBackground与android:windowAnimationStyle冲突，动画未完全显示。如果我在style.xml中包含上述样式并运行我的应用程序，我会得到以下内容：

如果我在这里注释掉这些行：

<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>

我不明白为什么会这样。对于我的一些其他动画，我需要windowIsTranslucent。

这些是我使用的xml动画类（感谢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>

Answer 1

你可以尝试这个，改变

<style name="ActivityAnimation" parent="@android:style/Animation">

到

<style name="ActivityAnimation" parent="@android:style/Animation.Translucent">

设置样式android：windowIsTranslucent似乎与windowAnimationStyle冲突

1 个答案: