ios强制关闭黑暗模式

 直接在AppDelegate 里的

funcapplication(_application:UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey:Any]?) ->Bool

方法里添加

if #available(iOS 13.0, *) {

            self.window?.overrideUserInterfaceStyle = .light

}else{

            // Fallback on earlier versions

 }

简单粗暴！