android:windowIsTranslucent

http://blog.youkuaiyun.com/fancylovejava/article/details/39643449

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light">
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowAnimationStyle">@style/activityAnimation</item>  //设置页面切换的动画样式
        <item name="android:windowBackground">@color/basewindow_background</item>  
    </style>
    <style name="activityAnimation" parent="@android:style/Animation">
        <item name="android:activityOpenEnterAnimation">@anim/in_right_to_left</item>
        <item name="android:activityOpenExitAnimation">@anim/out_right_to_left</item>
        <item name="android:activityCloseEnterAnimation">@anim/in_left_to_right</item>
        <item name="android:activityCloseExitAnimation">@anim/out_left_to_right</item>
        <item name="android:fragmentOpenEnterAnimation">@anim/in_right_to_left</item>
        <item name="android:fragmentOpenExitAnimation">@anim/out_right_to_left</item>
        <item name="android:fragmentCloseEnterAnimation">@anim/in_left_to_right</item>
        <item name="android:fragmentCloseExitAnimation">@anim/out_left_to_right</item>
    </style>

开发的时候可以来这边设置一下主题，

android:windowAnimationStyle 这个是这是页面切换的样式，左出又进之类的，默认是直接切换没有动画效果

android:windowBackground     这个是设置默认的背景色