Initializing the app

Every Android app requires initialization time while the
operating system sets up the app’s process.
Android provides the concept of a launch screen to
display a Drawable while the app is initializing.

The default Flutter project template includes a definition
of a launch theme and a launch background. You can customize
this by editing styles.xml, where you can define a theme
whose windowBackground is set to the
Drawable that should be displayed as the launch screen.

<style

name=

"LaunchTheme"

parent=

"@android:style/Theme.Black.NoTitleBar"

<item

name=

"android:windowBackground"

>@drawable/launch_background

</item>

</style>