透明背景Activity设置

1.添加Style

<style name="myTransparent">
<item name="android:windowBackground">@color/transparent</item>
<item name="android:windowNoTitle">true</item>
<item name="android:windowIsTranslucent">true</item>
<item name="android:windowAnimationStyle">@android:style/Animation.Translucent</item>
</style>

2.在AndroidManifest中套用该Style

<activity android:name=".SearchActivity"
android:windowSoftInputMode="adjustResize"
android:launchMode="singleTask"
android:screenOrientation="portrait"
android:theme="@style/myTransparent">

</activity>