1. Delete Main.storyboard file

Delete “Main” from Main interface in General Deployment info

3. Scenedelegate is used for split screen use on iPad, which can be deleted directly when developing mobile apps

4. Remove the AppDelegate configurationForConnecting and didDiscardSceneSessions method, these two methods are used to set the AppDelegate agent for SceneDelegate

Delete the Application Scene Manifest configuration item in Info. plist

done! $CMD + R Run the project to see the effect