iOS 手势

UITapGestureRecognizer 轻拍手势
UISwipeGestureRecognizer 轻扫手势
UILongPressGestureRecognizer 长按手势
UIPanGestureRecognizer 平移手势
UIPinchGestureRecognizer 捏合（缩放）手势
UIRotationGestureRecognizer 旋转手势
UIScreenEdgePanGestureRecognizer 屏幕边缘平移