I have a universal binary application and currently working on the iPad version of the application. The iPad is using a uitabbarcontroller and on the second tab I have 6 images and when adding a UIPinchGesture it is not responding. I have userInteractionEnabled=YES; I tried adding the image view programmatically and then adding the gesture recognizer and still nothing seems to work.
I tried setting the delegate to the view controller and implementing one of the delegate methods and didn't get any responses. Below is the code sample of what I am doing:
UIImageView *img2 = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"img2-large.png"]];
img2.frame = CGRectMake(20, 20, 100, 100);
[img2 setUserInteractionEnabled:YES];
img2.contentMode = UIViewContentModeScaleAspectFit;
[self.view addSubview:img2];
UIPinchGestureRecognizer *img2Pinch = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(img2Pinch:)];
[img2 addGestureRecognizer:img2Pinch];
[img2Pinch release];
- (void)img2Pinch:(UIPinchGestureRecognizer *)sender {
NSLog(@"HERE");
}
I'm sure it's something silly that I'm missing. I've used this stuff before but can't for the life of me figure out what is going wrong.
Set userInteractionEnabled to YES. The default is NO. Also, in order to handle multi-touches, which is what the pinch is, multipleTouchEnabled needs to be set to YES.