There is a group of crashes reported by crittercism.
I've never reproduced it but there're about 50 times from different users in 1 weeks.
21
XXApp 0x0000000100129fb0 -[NSString(XXFormat) attributedStringFromHTMLByFont:] (NSString+XXFormat.m:15) was crashed.
Following is The line 15 code in NSString+XXFormat.m:
NSMutableAttributedString *attrString = [[NSMutableAttributedString alloc] initWithData:[self dataUsingEncoding:NSUTF8StringEncoding]
options:@{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType,
NSCharacterEncodingDocumentAttribute: @(NSUTF8StringEncoding)}
documentAttributes:nil error:nil];
Name: NSRangeException
Reason: *** -[__NSArrayM objectAtIndex:]: index 3 beyond bounds [0 .. 2]
Stack:
0
CoreFoundation 0x0000000183a0c2d8 __exceptionPreprocess + 128
1
libobjc.A.dylib 0x00000001952380e4 objc_exception_throw + 56
2
CoreFoundation 0x00000001838ef85c -[__NSArrayM objectAtIndex:] + 260
3
UIKit 0x0000000188575a94 -[UITableView cellForRowAtIndexPath:] + 212
4
UIKit 0x000000018873fa00 -[UITableViewWrapperView gestureRecognizerShouldBegin:] + 284
5
UIKit 0x00000001885e2c34 -[UIGestureRecognizer _shouldBegin] + 1072
6
UIKit 0x000000018847b340 -[UIGestureRecognizer setState:] + 428
7
UIKit 0x00000001885f4fdc -[UIScrollViewPanGestureRecognizer touchesMoved:withEvent:] + 100
8
UIKit 0x000000018847a6d8 -[UIWindow _sendGesturesForEvent:] + 592
9
UIKit 0x0000000188479f50 -[UIWindow sendEvent:] + 656
10
UIKit 0x000000018844d18c -[UIApplication sendEvent:] + 260
11
UIKit 0x00000001886ee324 _UIApplicationHandleEventFromQueueEvent + 15420
12
UIKit 0x000000018844b6a0 _UIApplicationHandleEventQueue + 1712
13
CoreFoundation 0x00000001839c4240 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 20
14
CoreFoundation 0x00000001839c359c __CFRunLoopDoSources0 + 444
15
CoreFoundation 0x00000001839c1594 __CFRunLoopRun + 708
16
CoreFoundation 0x00000001838ed2d4 CFRunLoopRunSpecific + 392
17
UIFoundation 0x0000000191850c10 -[NSHTMLReader _loadUsingWebKit] + 1984
18
UIFoundation 0x0000000191851fd0 -[NSHTMLReader attributedString] + 28
19
UIFoundation 0x00000001917ef23c _NSReadAttributedStringFromURLOrData + 5800
20
UIFoundation 0x00000001917edad8 -[NSAttributedString(NSAttributedStringUIFoundationAdditions) initWithData:options:documentAttributes:error:] + 144
21
XXApp 0x0000000100129fb0 -[NSString(XXFormat) attributedStringFromHTMLByFont:] (NSString+XXFormat.m:15)
22
XXApp 0x0000000100112f64 -[XXNews(Peer) attributedContent] (XXNews+Peer.m:56)
23
XXApp 0x00000001000fc854 -[XXWidgetNewsCell setWidget:] (XXWidgetNewsCell.m:53)
24
XXApp 0x0000000100116ba4 -[XXTimeLineTableViewController tableView:cellForRowAtIndexPath:] (XXTimeLineTableViewController.m:231)
25
UIKit 0x000000018874da68 -[UITableView _createPreparedCellForGlobalRow:withIndexPath:willDisplay:] + 540
26
UIKit 0x0000000188741890 -[UITableView _updateVisibleCellsNow:isRecursive:] + 2360
27
UIKit 0x000000018852d268 -[UITableView layoutSubviews] + 168
28
UIKit 0x0000000188449760 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 576
29
QuartzCore 0x0000000187d91e1c -[CALayer layoutSublayers] + 148
30
QuartzCore 0x0000000187d8c884 CA::Layer::layout_if_needed() + 316
31
QuartzCore 0x0000000187d8c728 CA::Layer::layout_and_display_if_needed() + 28
32
QuartzCore 0x0000000187d8bebc CA::Context::commit_transaction() + 272
33
QuartzCore 0x0000000187d8bc3c CA::Transaction::commit() + 524
34
QuartzCore 0x0000000187d85364 CA::Transaction::observer_callback() + 76
35
CoreFoundation 0x00000001839c42a4 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 28
36
CoreFoundation 0x00000001839c1230 __CFRunLoopDoObservers + 356
37
CoreFoundation 0x00000001839c1610 __CFRunLoopRun + 832
38
CoreFoundation 0x00000001838ed2d4 CFRunLoopRunSpecific + 392
39
GraphicsServices 0x000000018d1036fc GSEventRunModal + 164
40
UIKit 0x00000001884b2fac UIApplicationMain + 1484
41
XXApp 0x0000000100101280 main (main.m:14)
42
libdyld.dylib 0x00000001958b6a08 start + 0
It's not the snippet that you have shared here that is causing the issue but you are trying to access to in-existent element in an array :
Name: NSRangeException
Reason: *** -[__NSArrayM objectAtIndex:]: index 3 beyond bounds [0 .. 2]
the array has bounds [0 .. 2] and you try to access to index 3 that's not existent element
make sure in your method cellForRowAtIndexPath you are not bypassing the index of your NSArray