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PODetect horizontal panning in UITableView
 

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    <p>I'm using a UIPanGestureRecognizer to recognize horizontal sliding in a UITableView (on a cell to be precise, though it is added to the table itself). However, this gesture recognizer obviously steals the touches from the table. I already got the pangesturerecognizer to recognize horizontal sliding and then snap to that; but if the user starts by sliding vertical, it should pass all events from that touch to the tableview.</p> <p>One thing i have tried was disabling the recognizer, but then it wouldn't scroll untill the next touch event. So i'd need it to pass the event right away then.</p> <p>Another thing i tried was making it scroll myself, but then you will miss the persistent speed after stopping the touch.</p> <p>Heres some code:</p> <pre><code>//In the viewdidload method UIPanGestureRecognizer *slideRecognizer = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(sliding:)]; [myTable addGestureRecognizer:slideRecognizer]; -(void)sliding:(UIPanGestureRecognizer *)recognizer { if (recognizer.state == UIGestureRecognizerStateBegan) { CGPoint translation = [recognizer translationInView:favoritesTable]; if (sqrt(translation.x*translation.x)/sqrt(translation.y*translation.y)&gt;1) { horizontalScrolling = YES; //BOOL declared in the header file NSLog(@"horizontal"); //And some code to determine what cell is being scrolled: CGPoint slideLocation = [recognizer locationInView:myTable]; slidingCell = [myTable indexPathForRowAtPoint:slideLocation]; if (slidingCell.row == 0) { slidingCell = nil; } } else { NSLog(@"cancel"); } if (recognizer.state == UIGestureRecognizerStateEnded || recognizer.state == UIGestureRecognizerStateCancelled) { horizontalScrolling = NO; } if (horizontalScrolling) { //Perform some code } else { //Maybe pass the touch from here; It's panning vertically } } </code></pre> <p>So, any advice on how to pass the touches?</p> <p>Addition: I also thought to maybe subclass the tableview's gesture recognizer method, to first check if it's horizontal; However, then i would need the original code, i suppose... No idea if Apple will have problems with it. Also: I didn't subclass the UITableView(controller), just the cells. This code is in the viewcontroller which holds the table ;)</p>
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    1. COis there a reason you aren't doing this on the individual cells?
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    2. COCentralized code, and the methods being called are in the tableviewcontroller anyway. But even if they were on the cells themselves the recognizers would steal the touches from the tableview.
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    3. COYou could just as easily "Centralize" the code within a subclass of UITableViewCell. Keeping the code in the tableview isn't really a proper http://en.wikipedia.org/wiki/Separation_of_concerns . Of course that isn't what the questions is about :)
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