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POUIWebView as view for footer in section for tableview. Strange Crash - crash log attached
 

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  1. POUIWebView as view for footer in section for tableview. Strange Crash - crash log attached
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    <p>I have a uitableviewcontroller and im loading a uiwebview as viewForFooterInSection for the tableview</p> <p>This webview has some html content being loaded. The app crashes whenever I try to do</p> <pre><code>[self.tableView beginUpdates]; [self.tableView reloadSections:[NSIndexSet indexSetWithIndex:indexPath.section] withRowAnimation:UITableViewRowAnimationTop]; [self.tableView endUpdates]; </code></pre> <p>Crash log attached</p> <pre><code>Incident Identifier: DA08DEDA-3566-4A56-938A-57F4BCDF64F1 CrashReporter Key: ef8a5122f6b5431e4b29802596ec279644f97bd4 Hardware Model: iPod4,1 Process: sample [955] Path: /var/mobile/Applications/A0B6D2C6-AA93-4D24-9C7F-666B8C7F94B4/sample.app/sample Identifier: sample Version: ??? (???) Code Type: ARM (Native) Parent Process: launchd [1] Date/Time: 2012-07-24 13:07:10.396 +0530 OS Version: iPhone OS 4.3.5 (8L1) Report Version: 104 Exception Type: EXC_BAD_ACCESS (SIGBUS) Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000c Crashed Thread: 0 Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 WebCore 0x35fbc900 WebCore::TileCache::doLayoutTiles() + 24 1 WebCore 0x3609bed8 -[TileHostLayer renderInContext:] + 28 2 QuartzCore 0x336cc948 -[CALayer _renderSublayersInContext:] + 220 3 QuartzCore 0x336cbada -[CALayer renderInContext:] + 1086 4 QuartzCore 0x336cc948 -[CALayer _renderSublayersInContext:] + 220 5 QuartzCore 0x336cbada -[CALayer renderInContext:] + 1086 6 QuartzCore 0x336cc948 -[CALayer _renderSublayersInContext:] + 220 7 QuartzCore 0x336cbada -[CALayer renderInContext:] + 1086 8 QuartzCore 0x336cc948 -[CALayer _renderSublayersInContext:] + 220 9 QuartzCore 0x336cbada -[CALayer renderInContext:] + 1086 10 QuartzCore 0x336cc948 -[CALayer _renderSublayersInContext:] + 220 11 QuartzCore 0x336cbada -[CALayer renderInContext:] + 1086 12 UIKit 0x35b6b2dc -[_UITableViewUpdateSupport(Private) _imageViewForView:] + 68 13 UIKit 0x35b6a66a -[_UITableViewUpdateSupport(Private) _setupDeleteAnimationForFooterInSection:withTargetRect:forUpdateItem:] + 370 14 UIKit 0x35a7f91a -[_UITableViewUpdateSupport(Private) _setupAnimationsForDeletedHeadersAndFooters] + 1862 15 UIKit 0x35a78be6 -[_UITableViewUpdateSupport initWithTableView:updateItems:oldRowData:newRowData:oldRowRange:newRowRange:context:] + 398 16 UIKit 0x35a77dba -[UITableView(_UITableViewPrivate) _updateWithItems:withOldRowData:oldRowRange:newRowRange:context:] + 966 17 UIKit 0x35a7746c -[UITableView(_UITableViewPrivate) _endCellAnimationsWithContext:] + 4744 18 UIKit 0x35a812f2 -[UITableView endUpdatesWithContext:] + 22 19 UIKit 0x35a812ce -[UITableView endUpdates] + 10 20 sample 0x00007574 -[TableViewController tableView:didSelectRowAtIndexPath:] (TableViewController.m:188) 21 UIKit 0x3599c514 -[UITableView _selectRowAtIndexPath:animated:scrollPosition:notifyDelegate:] + 656 22 UIKit 0x35a000e4 -[UITableView _userSelectRowAtPendingSelectionIndexPath:] + 124 23 Foundation 0x307ee6ce __NSFireDelayedPerform + 362 24 CoreFoundation 0x34e69a40 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 8 25 CoreFoundation 0x34e6bec4 __CFRunLoopDoTimer + 844 26 CoreFoundation 0x34e6c83e __CFRunLoopRun + 1082 27 CoreFoundation 0x34dfcebc CFRunLoopRunSpecific + 224 28 CoreFoundation 0x34dfcdc4 CFRunLoopRunInMode + 52 29 GraphicsServices 0x30de0418 GSEventRunModal + 108 30 GraphicsServices 0x30de04c4 GSEventRun + 56 31 UIKit 0x35976d62 -[UIApplication _run] + 398 32 UIKit 0x35974800 UIApplicationMain + 664 33 sample 0x000024ac main (main.m:16) 34 sample 0x00002440 start + 32 Thread 1 name: Dispatch queue: com.apple.libdispatch-manager Thread 1: 0 libsystem_kernel.dylib 0x36906fbc kevent + 24 1 libdispatch.dylib 0x36aa5032 _dispatch_mgr_invoke + 706 2 libdispatch.dylib 0x36aa603a _dispatch_queue_invoke + 86 3 libdispatch.dylib 0x36aa55ea _dispatch_worker_thread2 + 186 4 libsystem_c.dylib 0x3663558a _pthread_wqthread + 258 5 libsystem_c.dylib 0x36635bbc start_wqthread + 0 Thread 2 name: WebThread Thread 2: 0 libsystem_kernel.dylib 0x36903c00 mach_msg_trap + 20 1 libsystem_kernel.dylib 0x36903758 mach_msg + 44 2 CoreFoundation 0x34e6a2b8 __CFRunLoopServiceMachPort + 88 3 CoreFoundation 0x34e6c562 __CFRunLoopRun + 350 4 CoreFoundation 0x34dfcebc CFRunLoopRunSpecific + 224 5 CoreFoundation 0x34dfcdc4 CFRunLoopRunInMode + 52 6 WebCore 0x35f1a27e _ZL12RunWebThreadPv + 382 7 libsystem_c.dylib 0x3663430a _pthread_start + 242 8 libsystem_c.dylib 0x36635bb4 thread_start + 0 Thread 3: 0 libsystem_kernel.dylib 0x36903c00 mach_msg_trap + 20 1 libsystem_kernel.dylib 0x36903758 mach_msg + 44 2 CoreFoundation 0x34e6a2b8 __CFRunLoopServiceMachPort + 88 3 CoreFoundation 0x34e6c562 __CFRunLoopRun + 350 4 CoreFoundation 0x34dfcebc CFRunLoopRunSpecific + 224 5 CoreFoundation 0x34dfcdc4 CFRunLoopRunInMode + 52 6 Foundation 0x307937f6 +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] + 206 7 Foundation 0x30786382 -[NSThread main] + 38 8 Foundation 0x307f85c6 __NSThread__main__ + 966 9 libsystem_c.dylib 0x3663430a _pthread_start + 242 10 libsystem_c.dylib 0x36635bb4 thread_start + 0 Thread 4 name: com.apple.CFSocket.private Thread 4: 0 libsystem_kernel.dylib 0x36905c60 __select + 20 1 CoreFoundation 0x34e6f8f2 __CFSocketManager + 582 2 libsystem_c.dylib 0x3663430a _pthread_start + 242 3 libsystem_c.dylib 0x36635bb4 thread_start + 0 Thread 5: 0 libsystem_kernel.dylib 0x369063ec __workq_kernreturn + 8 1 libsystem_c.dylib 0x366356d8 _pthread_wqthread + 592 2 libsystem_c.dylib 0x36635bbc start_wqthread + 0 Thread 0 crashed with ARM Thread State: r0: 0x00000000 r1: 0x3ef7c298 r2: 0x00562ab2 r3: 0x00000000 r4: 0x001f8c70 r5: 0x00164f80 r6: 0x2fdfd718 r7: 0x2fdfd68c r8: 0x2fdfd6e8 r9: 0x001fc0a0 r10: 0x001f8c70 r11: 0x00164f80 ip: 0x3f05e428 sp: 0x2fdfd5f4 lr: 0x3609bedf pc: 0x35fbc900 cpsr: 0x60000030 </code></pre> <h1><strong>UPDATE 1:</strong></h1> <p>Ive digged deeper into this and it seems to be some bug with apple unless I've missed something obvious</p> <p>I tried creating a fresh Master Detail iphone app and added a UIWebView property in the MasterViewController(UITableViewController) and initialized it</p> <pre><code>@interface MasterViewController () { NSMutableArray *_objects; } @property(nonatomic, strong) UIWebView *webView; @end @implementation MasterViewController @synthesize detailViewController = _detailViewController; @synthesize webView; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { self.title = NSLocalizedString(@"Master", @"Master"); webView = [[UIWebView alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, 50.0)]; } return self; } </code></pre> <p>now I have set this webview as the view for footer for the section in the tableview</p> <pre><code>- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section { return webView; } - (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section { return 50.0; } </code></pre> <p>and in the didSelectRowAtIndexPath I have done the following</p> <pre><code>- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { [self.tableView beginUpdates]; [self.tableView reloadSections:[NSIndexSet indexSetWithIndex:indexPath.section] withRowAnimation:UITableViewRowAnimationTop]; [self.tableView endUpdates]; } </code></pre> <p>Now whenever I touch a row I get the same crash and I have no Idea why this is happening.</p> <p>This is a totally fresh app with default code in it. I have only added the webView as the footer for the tableview.</p>
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    1. USJefferson
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      1. POUIWebView as view for footer in section for tableview. Strange Crash - crash log attached
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    1. COhow many sections do you have?
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      1. USsergio
    2. COthe tableview has one section and 10 rows
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    3. COJust ran into the exact same problem. Tried to set a webview as a footer. The problem seems to be coming from the fact that we are reusing the webview. It works fine if you create a new webview every time viewForFooterInSection is called, but that's inefficient. /:
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      1. POUIWebView as view for footer in section for tableview. Strange Crash - crash log attached
      1. USAyaka Nonaka
 

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