设置页面透明

xml文件：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    android:background="#e0ffffff"    tools:context="com.example.com.jimugongshe.activity.InteractionActivity"> </LinearLayout>

manifest文件：

activity theme：
<activity    android:name=".activity.InteractionActivity"    android:theme="@android:style/Theme.Light.WallpaperSettings" />