iOS解决App启动时闪屏问题(swift)

创建一个工具类MTAppHelper import UIKit fileprivate let isIphone4 = Int(kScreenH) == 480 fileprivate let isIphone5 = Int(kScreenH) == 568 fileprivate let isIphone6 = Int(kScreenH) == 667 fileprivate let isIp

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