1.AndroidManifest文件中配置Activity的Theme。style中新建全屏的theme并在相关的activity引用:
① AppCompatActivity:
<style name="FullscreenTheme" parent="Theme.AppCompat.Light.NoActionBar"> <item name="android:windowFullscreen">true</item></style>
<activity android:name=".ui.activity.SplashActivity" android:screenOrientation="portrait"