CODEWITHSUNDEEP
objective-cxcodeuigesturerecognizerswipe
Vins
Vins

Reputation: 1934

Disable gesture recognizer

I have two types of recognizer, one for tap and one for swipe

UIGestureRecognizer *recognizer;

//TAP
recognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(numTap1:)];
[(UITapGestureRecognizer *)recognizer setNumberOfTouchesRequired:1];
[self.view addGestureRecognizer:recognizer];
self.tapRecognizer = (UITapGestureRecognizer *)recognizer;
recognizer.delegate = self;
[recognizer release];

//SWIPE RIGHT
recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeRight:)];
self.swipeRightRecognizer =(UISwipeGestureRecognizer *)recognizer;
swipeRightRecognizer.direction = UISwipeGestureRecognizerDirectionRight;
[self.view addGestureRecognizer:swipeRightRecognizer];
self.swipeRightRecognizer = (UISwipeGestureRecognizer *)recognizer;
[recognizer release];

with this function I can disable taps on some objects.

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {

if ((touch.view == loseView) || (touch.view == subBgView) || (touch.view == btnAgain)) {

    return NO;
}

return YES;
}

How can I disable swipes?

Thanks a lot!

Upvotes: 42

Views: 52350

Answers (3)

PeyloW
PeyloW

Reputation: 36752

UIGestureRecognizer has a property named enabled. This should be good enough to disable your swipes:

swipeGestureRecognizer.enabled = NO;

Edit: For Swift 5

swipeGestureRecognizer.isEnabled = false

Upvotes: 124

JScarry
JScarry

Reputation: 1507

I have a similar issue. Some of my disabled users tap and swipe at the same time, so the app moves to the next screen. I set up an option to allow them to use a three-fingered tap instead. I need to invoke the option the popoverControllerDidDismissPopover delegate and when the app first starts. So I wrote a method that combines the answers above. It looks for all of the swipe gesture recognizers and turns them off, then turns on my tap gesture recognizer.

- (void)changeGestureRecognizer {
    // Three finger tap to move to next screen
    if ([Globals sharedInstance].useDoubleTapToMoveToNextScreen) {

        // Let’s see which gestures are active and turn off the swipes
        for (UIGestureRecognizer *gestureRecognizer in self.view.gestureRecognizers) {
            NSLog(@"The gestureRecognizer is %@", gestureRecognizer);
            if ( [gestureRecognizer isMemberOfClass:[UISwipeGestureRecognizer class]] ) gestureRecognizer.enabled = NO;
        }
        // Add the three finger tap
        UITapGestureRecognizer *twoFingerTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeNext)];
        [twoFingerTap setNumberOfTapsRequired:1];
        [twoFingerTap setNumberOfTouchesRequired:3];
        [self.view addGestureRecognizer:twoFingerTap];

    }
}

Upvotes: 0

Deepak Danduprolu
Deepak Danduprolu

Reputation: 44633

Why don't you set the delegate for the swipe gesture recognizer too and handle them within the same delegate method.

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
    if ( [gestureRecognizer isMemberOfClass:[UITapGestureRecognizer class]] ) {
        // Return NO for views that don't support Taps
    } else if ( [gestureRecognizer isMemberOfClass:[UISwipeGestureRecognizer class]] ) {
        // Return NO for views that don't support Swipes
    }

    return YES;
}

Upvotes: 17

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