Question

在我的视图中，我有两个UILabel，我为两者添加了相同的tapGesture。如果点击一个特定的标签，那么应该执行它的功能。但是我无法这样做？

-(void)viewDidLoad{
  lblEditProfile.userInteractionEnabled = YES;
  UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(labelClicked:)];
    [tapGestureRecognizer setNumberOfTapsRequired:1];
   [lblEditProfile addGestureRecognizer:tapGestureRecognizer];
   [tapGestureRecognizer release];

   lblViewDetails.userInteractionEnabled = YES;
  tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(labelClicked:)];
    [tapGestureRecognizer setNumberOfTapsRequired:1];

    [lblViewDetails addGestureRecognizer:tapGestureRecognizer];
    [tapGestureRecognizer release];
}

-(IBAction)labelClicked:(UITapGestureRecognizer*)tapGestureRecognizer
{

    currentLabel = (UILabel *)tapGestureRecognizer.view;
    NSLog(@"tap %@",tapGestureRecognizer.view);

    if(currentLabel.text==@"Edit Profile")
    {


        UserProfile *userProfile = [[UserProfile alloc] initWithNibName:@"UserProfile" bundle:nil];
        userProfile.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
        [self presentModalViewController:userProfile animated:YES];
        [userProfile release];



    }
    else
    {

        ViewDetails *viewDetails = [[ViewDetails alloc] initWithNibName:@"UserAppointments" bundle:nil];
        viewDetails.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
        [self presentModalViewController: viewDetails animated:YES];
        [viewDetails release];


    }


}

但是当我点击EditProfile标签时，它会阻止。

如何识别单击哪个标签并相应地执行所需操作？

Answer 1

使用像这样的标记格式。这将是有效的

-(void)viewDidLoad{
  lblEditProfile.userInteractionEnabled = YES;
  lblEditProfile.tag = 1;
  UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(labelClicked:)];
    [tapGestureRecognizer setNumberOfTapsRequired:1];
   [lblEditProfile addGestureRecognizer:tapGestureRecognizer];
   [tapGestureRecognizer release];

   lblViewDetails.userInteractionEnabled = YES;
   lblViewDetails.tag = 2;
  tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(labelClicked:)];
    [tapGestureRecognizer setNumberOfTapsRequired:1];

    [lblViewDetails addGestureRecognizer:tapGestureRecognizer];
    [tapGestureRecognizer release];
}

-(IBAction)labelClicked:(UITapGestureRecognizer*)tapGestureRecognizer
{

    currentLabel = (UILabel *)tapGestureRecognizer.view;
    NSLog(@"tap %d",tapGestureRecognizer.tag);

    if(currentLabel.tag == 1)
    {


        UserProfile *userProfile = [[UserProfile alloc] initWithNibName:@"UserProfile" bundle:nil];
        userProfile.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
        [self presentModalViewController:userProfile animated:YES];
        [userProfile release];



    }
    else if(currentLabel.tag == 2)
    {

        ViewDetails *viewDetails = [[ViewDetails alloc] initWithNibName:@"UserAppointments" bundle:nil];
        viewDetails.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
        [self presentModalViewController: viewDetails animated:YES];
        [viewDetails release];


    }


}

Answer 2

像这样检查：

  if(currentLabel == lblEditProfile)
    //code here
  else
     //code here

识别UITapGestureRecognizer的多个UILabel点击

2 个答案: