UIWebSelectSinglePicker crash - ios

Question

We receive some reports for crashes in UIWebSelectSinglePicker. We guess it's due to an empty datasource array. This occurs in a webview though. How can we work around this? would prefer a native only solution
edit
happens only on iphones, running both iOS7 and iOS8
1 CoreFoundation __exceptionPreprocess + 127
2 libobjc.A.dylib objc_exception_throw + 36
3 CoreFoundation -[__NSArrayM objectAtIndex:] + 228
4 UIKit -[UIWebSelectSinglePicker pickerView:didSelectRow:inComponent:] + 56
5 UIKit -[UIPickerView _sendSelectionChangedForComponent:notify:] + 90
6 UIKit -[UIPickerTableView _scrollingFinished] + 152
7 UIKit -[UIScrollView(UIScrollViewInternal) _stopScrollDecelerationNotify:] + 842
8 UIKit -[UIScrollView(UIScrollViewInternal) _stopScrollingNotify:pin:tramplingDragFlags:] + 502
9 UIKit -[UIScrollView(UIScrollViewInternal) _stopScrollingNotify:pin:] + 28
10 UIKit -[UIScrollView _smoothScrollWithUpdateTime:] + 208
11 QuartzCore CA::Display::DisplayLinkItem::dispatch() + 96
12 QuartzCore CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) + 364
13 IOMobileFramebuffer IOMobileFramebufferVsyncNotifyFunc + 88
14 IOKit IODispatchCalloutFromCFMessage + 254
15 CoreFoundation __CFMachPortPerform + 130
16 CoreFoundation __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 32
17 CoreFoundation __CFRunLoopDoSource1 + 344
18 CoreFoundation __CFRunLoopRun + 1606
19 CoreFoundation CFRunLoopRunSpecific + 474
20 CoreFoundation CFRunLoopRunInMode + 104
21 GraphicsServices GSEventRunModal + 134
22 UIKit UIApplicationMain + 1438
23 MYAPP main (main.m:16)
24 libdyld.dylib start + 0

Answer 1

I would guess this is related to another issue here on SO
There is an issue with the WebView and system controls triggered from HTML.

Answer 2

I think there is no link with UIWebSelectSinglePicker. I think you are trying to access to an object at an index outside the range of your array.
To prevent this you can add something like:
if(index < [self.myArray count] && [self.myArray count] > 0){
id myobject = [self.myArray objectAtIndex:index];
// do what you want here with your object
}
To debug this kind of issue and find where it happens, try to add a symbolic breakpoint:
Select the breakpoint navigator
click on "+"
"add symbolic breakpoint"
add "objectAtIndex" in the symbol field