setAnimatjionStyle实现popupwindow的动画效果

转自：/article/2598575.html

摘要 popwindow通过setAnimationStyle(int animationStyle)函数来设置动画效果 android:windowEnterAnimation表示进入窗口动画 android:windowExitAnimation表示窗口退出动画 在res/values/style.xml代码： ?xml version="1.0" encoding="utf-8"? resources style
popwindow通过setAnimationStyle(int animationStyle)函数来设置动画效果

android:windowEnterAnimation表示进入窗口动画

android:windowExitAnimation表示窗口退出动画

在res/values/style.xml代码：

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<?xml version="1.0"encoding="utf-8"?>
<resources>

<style name="PopupAnimation"parent="android:Animation"mce_bogus="1">
<item name="android:windowEnterAnimation">@anim/popup_enter</item>
<item name="android:windowExitAnimation">@anim/popup_exit</item>
</style>
</resources>

<?xml version="1.0"encoding="utf-8"?>   
<resources>      
   
<style name="PopupAnimation"parent="android:Animation"mce_bogus="1">        
        <item name="android:windowEnterAnimation">@anim/popup_enter</item>   
        <item name="android:windowExitAnimation">@anim/popup_exit</item>   
    </style>   
</resources>

在res/anim/popup_enter.xml声明所需进入动画

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<?xml version="1.0"encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<scale android:fromXScale="0.6"android:toXScale="1.0"
android:fromYScale="0.6"android:toYScale="1.0"android:pivotX="50%"
android:pivotY="50%"android:duration="1000"/>
<alpha android:interpolator="@android:anim/decelerate_interpolator"
android:fromAlpha="0.0"android:toAlpha="1.0"android:duration="1000"/>
</set>

<?xml version="1.0"encoding="utf-8"?>       
<set xmlns:android="http://schemas.android.com/apk/res/android">   
    <scale android:fromXScale="0.6"android:toXScale="1.0"
        android:fromYScale="0.6"android:toYScale="1.0"android:pivotX="50%"
        android:pivotY="50%"android:duration="1000"/>   
    <alpha android:interpolator="@android:anim/decelerate_interpolator"
        android:fromAlpha="0.0"android:toAlpha="1.0"android:duration="1000"/>   
</set>

在res/anim/popup_exit.xml声明所需退出动画

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<?xml version="1.0"encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<scale
android:fromXScale="1.0"
android:toXScale="0.5"
android:fromYScale="1.0"
android:toYScale="0.5"
android:pivotX="50%"
android:pivotY="50%"
android:duration="500"/>
<alpha
android:interpolator="@android:anim/accelerate_interpolator"
android:fromAlpha="1.0"
android:toAlpha="0.0"
android:duration="500"/>
</set>

<?xml version="1.0"encoding="utf-8"?>   
<set xmlns:android="http://schemas.android.com/apk/res/android">   
    <scale   
        android:fromXScale="1.0"
        android:toXScale="0.5"
        android:fromYScale="1.0"
        android:toYScale="0.5"
        android:pivotX="50%"
        android:pivotY="50%"
        android:duration="500"/>   
    <alpha   
        android:interpolator="@android:anim/accelerate_interpolator"
        android:fromAlpha="1.0"
        android:toAlpha="0.0"
        android:duration="500"/>   
</set>

设置popwindow的位置及动画

popupWindow.setAnimationStyle(R.style.PopupAnimation);

popupWindow.showAtLocation(findViewById(R.id.parent), Gravity.CENTER| Gravity.CENTER, 0, 0);

popupWindow.update();

调用popupWindow.dismiss();语句。popwindow消失，自动调用消失动画popup_exit.xml