White background issues occur when the Android application starts.

During the Android application development process, in order for the application to have a better user experience, you often add a startup page when you start the application, but when you add the launch page, we find that the white background will appear when you start the application, and then enter the background of the launch page that we set up.

The workaround is as follows:

Creating a start activity in style style,my_welcome_background is the splash page background you need to display. The following style is then added to the theme attribute in the Start page activity in the manifest file.

<style name= "Welcometheme" parent= "Theme.AppCompat.Light.NoActionBar" >
<item name= "Windowactionbar" >false</item>
<item name= "Windownotitle" >true</item>
<item name= "Android:windowbackground" > @drawable/my_welcome_background</item>
</style>

The manifest file is modified as follows:

<activity
            android:name=. Views. Welcomeactivity "
            android:label=" @string/ App_name "
            android:launchmode=" Singletask "
            android:theme= "@style/welcometheme" >
            <intent-filter>
                 <action android:name= " Android.intent.action.MAIN "/>
                 <category android:name= "Android.intent.category.LAUNCHER"/>
             </intent-filter>
</activity>