Flutter app shows a black screen before loading the app

<meta-data
    android:name="io.flutter.embedding.android.SplashScreenDrawable"
    android:resource="@drawable/my_splash"
    />

AndroidManifest.xml check the FlutterActivity and add this code

This issue was fixed recently. If you are using a version of Flutter that has this engine fix, you won't see the black frame. (The fix should be on the Flutter master branch by now, but not the alpha branch.)

It's not issue, this for hot reload. Don't worry about that. When you run with release, you can't see this.

if you want to be sure try ->

flutter run --release