Question

在我的应用程序中，由于特定原因，我希望UIImageView可触摸，以便在用户点击时推送到新的视图控制器。我知道要对UIButton做同样的事情。但我现在想要一个UIImageView来做这件事。我该怎么办？这是我的UIImageView代码

UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(50, 100, 50, 50)];
[imageView setImage:[UIImage imageNamed:@"myImage.png"]];
 imageView.userInteractionEnabled = YES;
[self.view addSubview:imageView];
[imageView release];

Answer 1

虽然将它设置为UI按钮（如我所述）会更容易，但您可以为UIImageView实现UITapGestureRecognizer。您还需要使用userInteractionEnabled属性在视图上启用用户交互。

Answer 2

正如@Kory Sharp所说，你可以使用UITapGestureRecognizer

UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTap:)];
[tap setNumberOfTapsRequired:1];
[yourImageView addGestureRecognizer: tap];

处理方法

-(void) handleTap:(UITapGestureRecognizer *)recognizer {
    if (recognizer.state == UIGestureRecognizerStateEnded) {
        //push your view controller
    }
}

Answer 3

我在这里使用单击手势识别器

{
     UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(50, 100, 50, 50)];
     [imageView setImage:[UIImage imageNamed:@"myImage.png"]];
     UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(imageTapped:)];
     [tapGesture setNumberOfTapsRequired:1];
     [tapGesture setNumberOfTouchesRequired:1];

     [imageView setGestureRecognizers:[NSArray arrayWithObject:tapGesture]];
     [tapGesture release];
     imageView.userInteractionEnabled = YES;
     [self.view addSubview:imageView];
     [imageView release];
 }

-(void)imageTapped:(id)sender
{
  // Do STUFF HERE
}

Answer 4

以下是Mat讨论的完整代码：

- (void)viewDidLoad
{
    [super viewDidLoad];

    UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(50, 100, 50, 50)];
    [imageView setImage:[UIImage imageNamed:@"tap.png"]];
     [self.view addSubview:imageView];
    imageView.userInteractionEnabled = YES;


    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTap:)];
    [tap setNumberOfTapsRequired:1];
    [tap setNumberOfTouchesRequired:1];
    [imageView addGestureRecognizer: tap];
    [tap release];
    [imageView release];
}

-(void) handleTap:(UITapGestureRecognizer *)recognizer {
    if (recognizer.state == UIGestureRecognizerStateBegan) {


       MyTestViewController* viewController = [self.storyboard instantiateViewControllerWithIdentifier:@"TestTable"];
        [self.navigationController pushViewController:viewController animated: YES];

    }
}

用于推送新ViewController的UIImageView

4 个答案: