Prevent conflict GestureEvent
In Google map, scroll event is already set up.
I would like to use UIPanGestureRecognizer in UIWebView but, cannot first.
To prevent this, we need one technique
Prepare GestureRecognizerDelegate
@interface TestController : UIViewController<UIGestureRecognizer> @end
Implement gestureRecognizer methods
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldBeRequiredToFailByGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer { if ([otherGestureRecognizer isKindOfClass:[UIGestureRecognizer class]]) { return YES; } return NO; } - (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneousWithGestureRecognizer(UIGestureRecognizer *)otherGestureRecognizer { return YES; }