Problem using UIGestureRecognizer
Problem using UIGestureRecognizer
- Subject: Problem using UIGestureRecognizer
- From: Laurent Daudelin <email@hidden>
- Date: Mon, 06 Aug 2012 14:38:04 -0700
Hello.
I found a few examples of creating UIGestureRecognizer programmatically but since they're in IB now, I thought why not using them there. So, I have an Xcode 4.4 iOS 5.1 project using ARC with a UITableViewCell that contains a UIScrollView, among other things, which scrollview contains an UIImageView. I want the user to be able to zoom the image view, obviously. So, I dragged an instance of UIGestureRecognizer into my controller's segue (scene?). I then connected its action to an action method in my view controller. I then dragged a connection from the scrollview to the gesture recognizer and connected it to the gestureRecognizers of the scrollview. Everything seems to be OK. But when I launch my app in the simulator, as soon as the view is to appear, it crashes more or less randomly with:
* thread #1: tid = 0x1c03, 0x0124509b libobjc.A.dylib`objc_msgSend + 15, stop reason = EXC_BAD_ACCESS (code=1, address=0x5f6e6511)
frame #0: 0x0124509b libobjc.A.dylib`objc_msgSend + 15
frame #1: 0x01448435 CoreFoundation`CFRelease + 117
frame #2: 0x01ebb968 CFNetwork`XConnectionEventQueue<XClientEvent, XClientEventParams>::~XConnectionEventQueue() + 126
frame #3: 0x01f908e9 CFNetwork`URLConnectionClient::ClientConnectionEventQueue::processAllEventsAndConsumePayload(XConnectionEventInfo<XClientEvent, XClientEventParams>*, long) + 1351
frame #4: 0x01eba298 CFNetwork`URLConnectionClient::processEvents() + 174
frame #5: 0x01f9016b CFNetwork`non-virtual thunk to URLConnectionInstanceData::multiplexerClientPerform() + 21
frame #6: 0x01eba137 CFNetwork`MultiplexerSource::perform() + 259
frame #7: 0x0151097f CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
frame #8: 0x01473b73 CoreFoundation`__CFRunLoopDoSources0 + 243
frame #9: 0x01473454 CoreFoundation`__CFRunLoopRun + 1012
frame #10: 0x01472db4 CoreFoundation`CFRunLoopRunSpecific + 212
frame #11: 0x01472ccb CoreFoundation`CFRunLoopRunInMode + 123
frame #12: 0x02341879 GraphicsServices`GSEventRunModal + 207
frame #13: 0x0234193e GraphicsServices`GSEventRun + 114
frame #14: 0x003a2a9b UIKit`UIApplicationMain + 1175
frame #15: 0x0000282d Erodr`main + 141 at main.m:16
The gesture recognizers is configured with 1 tap, 1 touch, state enabled, events canceled in View, delayed begin and delayed end.
What am I missing?
-Laurent.
--
Laurent Daudelin
AIM/iChat/Skype:LaurentDaudelin http://www.nemesys-soft.com/
Logiciels Nemesys Software email@hidden
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