Find which child view was tapped when using UITapGestureRecognizer

Question

How do I know on which of the the child views an event occurred when using UIGestureRecognizers?

According to the documentation:

A gesture rec

Answer 1

This will find the innermost descendant view at the event's location. (Note that if that child view has any interactive internal private grandchildren this code will find those too.)

UIView* view = gestureRecognizer.view;
CGPoint loc = [gestureRecognizer locationInView:view];
UIView* subview = [view hitTest:loc withEvent:nil];

In Swift 2:

let view = gestureRecognizer.view
let loc = gestureRecognizer.locationInView(view)
let subview = view?.hitTest(loc, withEvent: nil) // note: it is a `UIView?`

In Swift 3:

let view = gestureRecognizer.view
let loc = gestureRecognizer.location(in: view)
let subview = view?.hitTest(loc, with: nil) // note: it is a `UIView?`

Answer 2

For future users... I have got a better option now when world is not using obj-c anymore...

[sender view]

use it this way:

UITapGestureRecognizer * objTapGesture = [self createTapGestureOnView:myTextField];

[objTapGesture addTarget:self action:@selector(displayPickerView:)];

// add these methods

-(void)displayPickerView:(UITapGestureRecognizer*)sender
{
    UITextField *textField = (UITextField*)[sender view];
    NSLog(@"tag=  %ld", (long)textField.tag);
}

-(UITapGestureRecognizer*)createTapGestureOnView:(UIView *)view
{
    view.userInteractionEnabled = YES;
    UITapGestureRecognizer * tapGesture = [[UITapGestureRecognizer alloc]init];
    tapGesture.numberOfTapsRequired = 1;
    tapGesture.numberOfTouchesRequired = 1;
    [view addGestureRecognizer:tapGesture];
    return tapGesture;
}