网上方案一大堆 我找了个好使的
1.定义Style
<style name="SplashTheme" parent="AppTheme" >
<!-- 欢迎页背景引用刚才写好的 -->
<item name="android:windowBackground">@drawable/splash</item>
<item name="android:windowFullscreen">true</item>
<item name="android:windowContentTransitions" tools:targetApi="lollipop">true</item>
<!-- <item name="android:windowIsTranslucent">true</item> --> <!-- 透明背景不要了 -->
</style>
2.splash
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<!-- 背景颜色 -->
<item android:drawable="@color/white" />
<item>
<!-- 图片 -->
<bitmap
android:gravity="center"
android:src="@drawable/guidepic" />
</item>
</layer-list>
3.Mainfest
<!-- 引导页 -->
<activity
android:name=".guideAc.GuideActivity"
android:theme="@style/SplashTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
4.Ac不要setContentView
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
waitToJump();
}