Question

In the UIView, there is several sub views of UIImageView objects.

Since I need to detect the touch events from the UIImageView and from the remaining area of the UIView.

Can I implement touch events in UIView and UIImagView simultaneously ?

Thanks.

Answer 1

Based on your comment, I think you should consider gesture recognizers. Use the UITapGestureRecognizer to identify and respond to taps on a view.

UITapGestureRecognizer *tapGesture;

tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapOnView:)];
tapGesture.numberOfTapsRequired = 1;
tapGesture.numberOfTouchesRequired = 1;
[view addGesture:tapGesture];
[tapGesture release];

...

tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapOnImage:)];
tapGesture.numberOfTapsRequired = 1;
tapGesture.numberOfTouchesRequired = 1;
[imageView addGesture:tapGesture];
[tapGesture release];

...

define -(void)handleTapOnView:(UITapGestureRecognizer*)gesture and -(void)handleTapOnImage:(UITapGestureRecognizer*)gestureand handle the touches there.

There are other kinds of gestures too. You can read more about them here.