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POUITextView setBorderStyle crashes in iOS 5 Simulator
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copied!<p>I have a strange situation in one view controller where this line crashes in the iOS 5 simulator:</p> <pre><code> // myTextField is created in a NIB myTextField.borderStyle = UITextBorderStyleNone; </code></pre> <p>It's okay in the device (and both device and simulator on iOS 4.3). I've checked the connections in the NIB (even deleted and reconnected). myTextField has a retainCount of 2 at this point in the code. I'm setting other attributes (e.g., "text" and "userInteractionEnabled" prior to this point, and those do not cause a crash.</p> <p>However, if I use this sequence, it does not crash:</p> <pre><code> myTextField.borderStyle = 4; // not a defined border style myTextField.borderStyle = UITextBorderStyleNone; </code></pre> <p>If I use 1, 2, or 3 (defined styles) instead of "4" (an undefined border style), it crashes. "7" works.</p> <p>In my other view controllers, I have similar textViews, and no problem setting the borderStyle to UITextBorderStyleNone.</p> <p>Edit: Here's the backtrace:</p> <pre><code>Thread 1, Queue : (null) #0 0x01e0609b in objc_msgSend () #1 0x005c1c22 in -[UIView(Hierarchy) _setBackgroundColor:] () #2 0x005c3a06 in -[UIView(Rendering) setBackgroundColor:] () #3 0x0063eab7 in -[UITextField setBackgroundColor:] () #4 0x0063e1b6 in -[UITextField setBorderStyle:] () #5 0x000c23e6 in -[DutyEditViewController viewWillAppear:] at /Users/jeff/Applications/iPhone/MyApp/Classes/DutyEditViewController.m:197 #6 0x00651fbf in -[UIViewController _setViewAppearState:isAnimating:] () #7 0x0065221b in -[UIViewController __viewWillAppear:] () #8 0x006524c3 in -[UIViewController beginAppearanceTransition:animated:] () #9 0x00662b71 in -[UINavigationController _startTransition:fromViewController:toViewController:] () #10 0x006633df in -[UINavigationController _startDeferredTransitionIfNeeded] () #11 0x00663986 in -[UINavigationController pushViewController:transition:forceImmediate:] () #12 0x0c894dbd in -[UINavigationControllerAccessibility(SafeCategory) pushViewController:transition:forceImmediate:] () #13 0x006635a4 in -[UINavigationController pushViewController:animated:] () #14 0x000bf99a in -[DutiesTableViewController tableView:didSelectRowAtIndexPath:] () #15 0x0061a71d in -[UITableView _selectRowAtIndexPath:animated:scrollPosition:notifyDelegate:] () #16 0x0061a952 in -[UITableView _userSelectRowAtPendingSelectionIndexPath:] () #17 0x0025386d in __NSFireDelayedPerform () #18 0x020dc966 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ () #19 0x020dc407 in __CFRunLoopDoTimer () #20 0x0203f7c0 in __CFRunLoopRun () #21 0x0203edb4 in CFRunLoopRunSpecific () #22 0x0203eccb in CFRunLoopRunInMode () #23 0x0258a879 in GSEventRunModal () #24 0x0258a93e in GSEventRun () #25 0x0058aa9b in UIApplicationMain () #26 0x0006117d in main () #27 0x00002c65 in start () </code></pre> <p>I notice that the setBorderStyle: is doing a setBackgroundColor:, so changed my code to this:</p> <pre><code>myTextField.backgroundColor = [UIColor clearColor]; myTextField.borderStyle = UITextBorderStyleNone; </code></pre> <p>and the crash no longer happens. But, the background color is being set to "Clear Color" in the NIB.</p> <p>So, the crash is gone, but the mystery of why I must set the background color (even though the NIB is already doing that) remains.</p>

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