ScreenSize

let screenSize: CGRect = UIScreen.mainScreen().bounds
let screenWidth = screenSize.width
let screenHeight = screenSize.height

general func:

func getScreenSize() ->CGRect {
   
    return UIScreen.mainScreen().bounds
   
}

func getScreenWidth() ->CGFloat {
    let screenSize: CGRect = UIScreen.mainScreen().bounds
    return screenSize.width
   
}

func getScreenHeight() ->CGFloat {
    let screenSize: CGRect = UIScreen.mainScreen().bounds
    return screenSize.height
}

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