iPhone SDK 4.0中的滑动手势？

Question

如何在新iPhone SDK中添加滑动手势？我正在尝试检测UIImageView上的滑动手势？向上滑动并向下滑动？

Answer 1

有一个新的API：请参阅这篇文章here。

Answer 2

在iOS 4.0中有更简单的方法来处理手势，请参阅：

http://developer.apple.com/library/ios/#documentation/EventHandling/Conceptual/EventHandlingiPhoneOS/GestureRecognizers/GestureRecognizers.html

Answer 3

基本上你需要覆盖onTouchesBegan和onTouchesEnded。当它开始时，记录第一个位置，然后在最后比较最后一次触摸与第一次触摸，看它是否更低或更高。

Answer 4

请从此链接下载滑动手势代码：

https://github.com/brow/leaves/downloads

UISwipeGestureRecognizer *settingbtnpress =
[[UISwipeGestureRecognizer alloc]
 initWithTarget:self
 action:@selector(MethodName)];
settingbtnpress.delegate=self;
settingbtnpress.direction = UISwipeGestureRecognizerDirectionRight;
[self.view addGestureRecognizer:settingbtnpress];
[settingbtnpress release];