extension UIView {
 func zhmfPositionInScreen() -> CGPoint {
 /// 先判斷是否有父視圖，如果沒有父視圖，直接返回視圖的位置就行
 if let superView = self.superview {
  /**
  判斷父視圖是否是UIScrollView或者繼承自UIScrollView
  
  先使用視圖在屏幕上的位置使用視圖的位置與父視圖的位置X與Y分別相加
  
  如果父視圖不是UIScrollView并且不繼承自UIScrollView，則直接返回結(jié)果
  
  如果父視圖是UIScrollView或者繼承自UIScrollView

  還需要分別減去UIScrollView的scrollViewOffset.x和scrollViewOffset.y，然后返回結(jié)果
  */
  if let scrollView = superView as? UIScrollView {
  let position = CGPoint.init(x: self.frame.origin.x, y: self.frame.origin.y)
  let superPosition = superView.zhmfPositionInScreen()
  let scrollViewOffset = scrollView.contentOffset
  return CGPoint.init(x: superPosition.x + position.x - scrollViewOffset.x , y: superPosition.y + position.y - scrollViewOffset.y)
  } else {
  let superPosition = superView.zhmfPositionInScreen()
  let position = self.frame.origin
  return CGPoint.init(x: superPosition.x + position.x, y: superPosition.y + position.y)
  }
 } else {
  return self.frame.origin
 }
 }
}

button.zhmfPositionInScreen()

UIWindow * window=[[[UIApplication sharedApplication] delegate] window];
 CGRect rect=[view1 convertRect: view1.bounds toView:window];