Value of type '(CGRect) -> CGRect' has no member：是由於你變量類型定義錯了

Value of type '(CGRect) -> CGRect' has no member：是由於你變量類型定義錯了

Value of type '(CGRect) -> CGRect' has no member 'maxY'
Value of type '(CGRect) -> CGRect' has no member 'maxX'
Value of type '(CGRect) -> CGRect' has no member 'width'
Value of type '(CGRect) -> CGRect' has no member 'height'
Value of type '(CGRect) -> CGRect' has no member 'size'

是由於你定義的某個變量屬性不對，多半應該是 CGFloat，而你沒有規定變量類型，系統默認識別成了 Int 或者 Double 類型

let frameWidth = 300 // 識別爲 Int

// 改成
let frameWidth: CGFloat = 300