小编flu*_*ang的帖子

我有几个UIImageView,每个都有一个标签; 我有一个图像数组,我想要做的是:当用户点击其中一个UIImageView时,应用程序从数组中返回特定的图像.

我这样实现:

- (void)viewDidLoad 
{
    [super viewDidLoad];
    scroll = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
    [self.view addSubview:scroll];

    NSInteger i;
    for (i=0; i<8; i++) 
    {
        UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(10, i*100 + i*15, 300, 100)];
        imageView.backgroundColor = [UIColor blueColor];
        imageView.userInteractionEnabled = YES;
        imageView.tag = i;

        NSLog(@"%d", imageView.tag);

        [scroll addSubview:imageView];

        UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(findOutTheTag:)];
        [imageView addGestureRecognizer:tap];

    }

    scroll.contentSize = CGSizeMake(320, 115*i);

}
- (void)findOutTheTag:(id)sender
{

    //  HOW TO FIND THE tag OF THE imageView I'M TAPPING?

} …

嘿,伙计们,我removeGestureRecognizer:从一个角度来看遇到了一个问题,

我想做的是doubleTap其中一个imageView,并删除tapped imageView的singleTap手势,而不删除其他imageView单一的手势.

这是我如何生成视图,手势和机制:

.H

UITapGestureRecognizer *singleTap;

.M

- (void)viewDidLoad 
{
    [super viewDidLoad];
    NSInteger i;
    for (i = 1; i <= 3; i++) 
    {
        UIImageView *imageView = [[UIImageView alloc] init];
        imageView.frame = CGRectMake(110, 70+80*(i-1), 100, 60);
        imageView.backgroundColor = [UIColor whiteColor];
        imageView.tag = i;
        imageView.userInteractionEnabled = YES;
        [self.view addSubview:imageView];

        UITapGestureRecognizer *doubleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(doubleMethod:)];
        doubleTap.numberOfTapsRequired = 2;

        singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleMethod:)];
        [singleTap requireGestureRecognizerToFail:doubleTap];

        [imageView addGestureRecognizer:doubleTap];
        [imageView addGestureRecognizer:singleTap];
    } …