利用Theme實現Acitvity切換

在實際需求中我們可能有自定義Activity的切換動畫的情況,這裏我們可以通過修改Theme的方式實現:

1.首先寫進入和退出的動畫

fade_in.xml:

<?xml version="1.0" encoding="utf-8"?>
<alpha xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="300"
    android:fromAlpha="0.0"
    android:interpolator="@android:anim/accelerate_interpolator"
    android:toAlpha="1.0" />  

fade_out.xml

<?xml version="1.0" encoding="utf-8"?>
<alpha xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="300"
    android:fromAlpha="1.0"
    android:interpolator="@android:anim/accelerate_interpolator"
    android:toAlpha="0.0" />  

2.編寫style文件

    <style name="anim_activity" parent="Theme.AppCompat.Light.DarkActionBar">
        <item name="android:windowAnimationStyle">@style/fade</item>
    </style>
    <style name="fade" parent="@android:style/Animation.Activity">
        <item name="android:activityOpenEnterAnimation">@anim/fade_in</item>
        <item name="android:activityOpenExitAnimation">@anim/fade_out</item>
        <item name="android:activityCloseEnterAnimation">@anim/fade_in</item>
        <item name="android:activityCloseExitAnimation">@anim/fade_out</item>
    </style>

3.AndroidManifest文件中使用該Theme

 <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/anim_activity"
        >
        <activity android:name=".kingAnimationForAcitvity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".TestActivity"
            android:theme="@style/anim_activity">
        </activity>

    </application>

源碼下載地址http://download.csdn.net/detail/jin870132/9672881