实现类似微信的activity切换动画

1、首先定义4个动画文件。

slide_left_in.xml

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android" >    <translate        android:duration="300"        android:fromXDelta="-100%p"        android:toXDelta="0" /></set>

slide_left_out.xml

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android" >    <translate        android:duration="300"        android:fromXDelta="0"        android:toXDelta="-100%p" /></set>

slide_right_in.xml

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android" >    <translate        android:duration="300"        android:fromXDelta="100%p"        android:toXDelta="0" /></set>

slide_right_out.xml

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android" >    <translate        android:duration="300"        android:fromXDelta="0"        android:toXDelta="100%p" /></set>

2、定义一个style

<style name="activityAnimation" parent="@android:style/Animation">        <item name="android:activityOpenEnterAnimation">@anim/a_slide_right_in</item>        <item name="android:activityOpenExitAnimation">@anim/a_slide_left_out</item>        <item name="android:activityCloseEnterAnimation">@anim/a_slide_left_in</item>        <item name="android:activityCloseExitAnimation">@anim/a_slide_right_out</item>    </style>

3、把定义的style放到AppTheme里边

<style name="AppTheme" parent="AppBaseTheme">        <item name="android:windowAnimationStyle">@style/activityAnimation</item>    </style>

4、在AndroidManifest.xml里边设置application的theme

<application        android:name=".App"        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" ></application>

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