iphone - 如何在 UIImageView 上设置 UIGestureRecognizer？

Question

如何添加 UIGestureRecognizer 以识别 UIImageView 顶部的左右滑动？我只需要在向左滑动时调用一个 Action ，在向右滑动时调用另一个 Action 。

Answer 1

创建 2 个滑动手势并将它们添加到您的 ImageView 中。

UISwipeGestureRecognizer * recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(myRightAction)];
    [recognizer setDirection:(UISwipeGestureRecognizerDirectionRight)];
    [myImageView addGestureRecognizer:recognizer];
    [recognizer release];

UISwipeGestureRecognizer * recognizer2 = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(myLeftAction)];
    [recognizer2 setDirection:(UISwipeGestureRecognizerDirectionLeft)];
    [myImageView addGestureRecognizer:recognizer2];
    [recognizer2 release];