Preface: there are two ways to set the startup page in IOS: launch image and launchscreen
1、 Launch image
1. Search for asset catalog launch image set name in project targets — build settings, and then set the name of the created launch page, as shown in the following figure.
Launchimage1.png
2. In info Delete in plistLaunch screen interface file base nameAnd addLaunch imageAnd setLaunchImage
Launchimage2.png
3. Add launchimage to the resource file and put pictures of different sizes, as shown below:
Launchimage3.png
4. Delete the installed app and repack it
Launchimage4.png
2、 Launch screen
1. In info Add in plistLaunch screen interface file base nameAnd setLaunchScreen
LaunchScreen1.png
2. Set launch screen file in project targets — General
LaunchScreen2.png
3. On launchscreen Design startup page style in storyboard file
LaunchScreen3.png
END