iphone - 在iPhone中选择点击手势上的图像

我如何选择点击手势上的图像。我想添加与我点击的图像相同的图像。如果我有3张图片，并且我点击了第二张图片，那么它将动态添加与第二张图片相同的第四张图片。

UIImage *image = [[info objectForKey:@"UIImagePickerControllerOriginalImage"] retain];

    UIView *holderView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, image.size.width/4, image.size.height/4)];
    UIImageView *imageview = [[UIImageView alloc] initWithFrame:[holderView frame]];


UITapGestureRecognizer *tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapped:)];
    [tapRecognizer setNumberOfTapsRequired:1];
    [tapRecognizer setDelegate:self];
    [holderView addGestureRecognizer:tapRecognizer];

-(void)tapped:(id)sender {

    [[[(UITapGestureRecognizer*)sender view] layer] removeAllAnimations];
    NSLog(@"Tapped");
    [self.view bringSubviewToFront:[(UITapGestureRecognizer*)sender view]];
    UIImageView *image = (UIImageView *)[(UITapGestureRecognizer*)sender view];
    [self.view addSubview:image];
}

我正在使用[(UITapGestureRecognizer*)sender view]]获得该视图。但是我不能。在点击时，我想添加我点击过的图像。

最佳答案

问题出在您的窃听方法上。当您编写(UIImageView *)[(UITapGestureRecognizer*)sender view];时，您将获得相同的添加的imageView，其框架将与添加时的框架相同。然后，使用addSubview添加它，如果这样做，它将被添加到之前添加的位置。

只需将tapped更改为:

-(void)tapped:(id)sender
{
  [[[(UITapGestureRecognizer*)sender view] layer] removeAllAnimations];
  UIImageView *imgView = (UIImageView *)[(UITapGestureRecognizer*)sender view];
  UIImageView *imageview = [[UIImageView alloc] initWithFrame:yourFrame]; //Set the next frame for the image view
  imageView.image = imgView.image;
  [self.view addSubview:imageView];
  [imageView release];
  imageView = nil;
}

还将手势添加到UIImageView中，如下所示:
[imageview addGestureRecognizer:tapRecognizer];不用于UIView。

同时设置imageview.userInteractionEnabled = YES;

关于iphone - 在iPhone中选择点击手势上的图像，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/13451774/