iOS-TapGestureRecognizer-Tap适用于整个屏幕而不适用于视图

Question

In my app, I have an image and a UITextView .
I have created a UITapGestureRecognizer for both the views but the issue is that wherever I click on the screen, only the method associated with the UITextView gets executed.
Even if I click on the image, only the UITapGestureRecognizer method associated with the UITextView gets executed.

Following is the code I've implemented:

UITapGestureRecognizer *tapGestureRecognizerImage = [[UITapGestureRecognizer alloc] initWithTarget:self
                                                                                            action:@selector(handleTapFromImage:)];
[infobutton addGestureRecognizer:tapGestureRecognizerImage];
[[self view] addGestureRecognizer:tapGestureRecognizerImage];

UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self
                                                                                       action:@selector(handleTapFrom:)];
[messageOne addGestureRecognizer:tapGestureRecognizer];
[[self view] addGestureRecognizer:tapGestureRecognizer];

//The following are the methods associated
- (void) handleTapFrom: (UITapGestureRecognizer *)recognizer {
    //Code to handle the gesture
    NSLog(@"I am in handleTapFrom method");
}

- (void) handleTapFromImage: (UITapGestureRecognizer *)recognizer {
    //Code to handle the gesture
    NSLog(@"I am in handleTapFrom Image method");
    [self.view makeToast:@"Your verification code does not match. Re-enter your verification code"];
}

I am sure I am missing something here.
The association in storyboard is correct to my knowledge.

Please correct me where I am going wrong

Thanks for your time

Answer 1

You should not add gesture on self.view.

It should get added on the view for which you want to identify tap event.

Answer 2

You are setting both the Tap Gesture Objects on [self view] object.
Also, the UIImageView object, lets call it imageObj , should have userInteractionEnabled = YES .

instead of:

[[self view] addGestureRecognizer:tapGestureRecognizerImage];

you should do:

[imageObj setUserInteractionEnabled:YES];
[imageObj addGestureRecognizer:tapGestureRecognizerImage];

---

You generally use -addGestureRecognizer: on the object you want your gesture object to work on.
Say you have a UITapGestureRecognizer object called myTapGesture .

Then, to make it work...

1. on a UILabel *lblSomeObj it will be:
   • [lblSomeObj addGestureRecognizer:myTapGesture];
2. on a UIView *vwSomeObj it will be:
   • [vwSomeObj addGestureRecognizer:myTapGesture];
3. etc...

Answer 3

You need to include this piece of code:-

 [tapGestureRecognizerImage requireGestureRecognizerToFail:tapGestureRecognizer]; 
[imageObj addGestureRecognizer:tapGestureRecognizerImage];

Answer 4

Just add the gesture in the respective views and not in self.view.

 UITapGestureRecognizer *tapGestureRecognizerImage = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapFromImage:)];

[infobutton addGestureRecognizer:tapGestureRecognizerImage];

UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapFrom:)];
[messageOne addGestureRecognizer:tapGestureRecognizer];

Answer 5

Add gesture on UIImageView object and make sure that image view userInteractionEnabled is set to YES

imageObj.userInteractionEnabled = YES;
[imageObj addGestureRecognizer:tapGestureRecognizerImage];