IOS UIResponder 判断触碰区域是否在图像内

 10 override func touchesBegan(_ touches：Set<UITouch>,
 with event：UIEvent？) {
 11 let touch = touches.first
 12 let touchPoint = touch？.location(in：self.view)
 13
 14 let imageViewFrame = self.imageView.frame
 15 let minX = imageViewFrame.origin.x
 16 let minY = imageViewFrame.origin.y
 17 let maxX = minX + imageViewFrame.size.width
 18 let maxY = minY + imageViewFrame.size.height
 19 if (touchPoint？.x)！>= minX && (touchPoint？.y)！
 <= maxX && (touchPoint？.y)！>= minY &&(touchPoint？.y)！<= maxY
 20 {
 21 isTouchInImageView = true;
 22 print(“您捡到一枚星星”);
 23 }
 24 }