Gesture problems with UITableView

[vleango]

When panGesture is enabled, the top controller (has a tableView inside) doesn't scroll up and down properly on same cells (pretty random cells). When this occurs, the menu's pan gesture is triggered instead.

I have also noticed this problem when the Left Menu has a table view.

I have been trying to get it to work for both gestures, but not successful so far.

[mdpp]

I'm having the same issue. Any hint on how to solve it (or any workaround)?

[topchul]

@vleango @mdpp UIScrollView(also UITableView) is implemented with the panGestureRecognizer. The gesture's priority based on view hierarchy(superview : first).

so, The examples set up a panGesture to the DEMONavigationConroller. It will be firing before UiTableView's gestures.

• Here is a solution. U can hold this gesture of DEMONavigationConroller with ivar. and U can toggle enabled when U need.
• An other way hold the panGesture of DEMONavigationController. get panGesture of UITableView. [{DEMONavigationController's gesture} requireGestureRecognizerToFail:{UITableView's}]

Good Luck.

[vleango]

hi @topchul , thanks for the comment. I like the second option. I haven't tried it yet, but if I run into any problems then I will report back.

[CianApple]

I had this issue as well. But I have a very simple implementation for this issue. The logic used by me in DemoNavigationController:

Instead of: [self.view addGestureRecognizer:[[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panGestureRecognized:)]];

Use: UIView *vw_pan = [[UIView alloc] initWithFrame:CGRectMake(0, self.navigationBar.frame.size.height + [UIApplication sharedApplication].statusBarFrame.size.height, 40, self.view.frame.size.height)]; vw_pan.backgroundColor = [UIColor clearColor]; [self.view addSubview:vw_pan]; [vw_pan addGestureRecognizer:[[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panGestureRecognized:)]];

This means decrease the pangesture from full screen to a limited area in the left edge of the screen. Hope it helps.