2020-11-25-LaunchScreen.storyboard

LaunchScreen.storyboard设置启动页

1.打开Xcode,show the file inspector
2.关闭 use Safe Area Layout Guides
3.打开Use as Launch Screen
4.控制器添加一张UIImageView,添加约束 上下左右以superView为参考,取消constrain to margins,距离均为0

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