iphone - 使用 UIGestures 删除选定的 uiimage？

Question

我正在尝试通过长按手势来删除图像...问题是我可以在同一 View 上有多个图像。并且可能想要通过按住图像来删除每个图像。

所以可以说我有:

 @property (nonatomic, retain) IBOutlet UIImageView *Image1;
 @property (nonatomic, retain) IBOutlet UIImageView *Image2;
 @property (nonatomic, retain) IBOutlet UIImageView *Image3;

所有内容都在同一 View 中。现在我按住 Image1。如何让长按手势知道我选择了 Image1 ??

- (void)handleDelete:(UILongPressGestureRecognizer *)recognizer {
   //Something in here to detect image is selected and delete :)
 }

谢谢!!!

Answer 1

在.h文件中提供UIGestureRecognizerDelegate，然后尝试此代码...

    UILongPressGestureRecognizer *longpressGesture = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressHandler:)];
    longpressGesture.minimumPressDuration = 5;
    [longpressGesture setDelegate:self];
    [self.yourImages addGestureRecognizer:longpressGesture];
    [longpressGesture release];

    - (void)longPressHandler:(UILongPressGestureRecognizer *)gestureRecognizer {
        NSLog(@"longPressHandler");
        UIImageView *tempImage=(UIImageView*)[gestureRecognizer view];
        [tempImage removeFromSuperview];
    }