I have created an app wherein I have a large scroll view (two page heights), and the navigation bar is visible. Further, I have it setup so that the scroll view starts off scrolled to the bottom page, and touches below the 30px mark are not registered by the UIScroll view (e.g. if you touch further than 30px below the nav bar, you will be able to press buttons but NOT scroll the UIScrollView). This all works excellently and allows me to make it seem like you are pulling down a window from above, all and all a neat effect.
The problem is that in use case testing, many users seem to be tapping too high (hitting the UINavigationBar) and thus their swipe gestures to try to pull down the window aren’t being read. Basically, if the touch starts on the nav bar, the entire gesture is ignored. This leads to users getting either frustrated (knowing that they should be able to pull down the window but being unable to) or thinking that the pull down has been disabled for some reason.
I’d like to implement a way such that if the user’s touch starts from within the UINavigationBar but isn’t on one of the navigation buttons, the touch is passed down to the UIScrollView. Is this possible, and if so, how would I go about doing it?
Try using custom navigation bar. Inherit from UINavigation bar and then add a sub view where you want and add a gesture there.