Crash in UITextView when URLifying text (in -doURLificationOnDocument)

Originator:sebastian
Number:rdar://15223268 Date Originated:14-Oct-2013
Status:Open Resolved:
Product:iOS SDK Product Version:iOS 7.0.2
Classification:Crash Reproducible:Rarely
 
Summary:
I've received many crash reports from users of our apps pointing to a SIGABRT crash in TextKit. It is an NSArray out of bounds exception in the method doURLificationOnDocument in the class DDTextKitOperation where it tries to add an attribute to an NSAttributedString. I suspect this happens in some cases when UITextView tries to detect URLs in a UITextView using data detectors and gets the substring range wrong.

I have seen very strange behavior on iOS 7 with UITextView not adding the highlight attribute the right character ranges for URLs/phone numbers, so this might be related. I've attached a video of this behavior, along with the crash report.

Steps to Reproduce:
Not reproducible, only reported through customer crash reports. Please find the crash report attached.

Expected Results:
UITextView should handle the text ranges properly and not crash.

Actual Results:
UITextView causes the app to crash.

Version:
iOS 7.0.2

Notes:


Configuration:
We have seen these crash reports from all types of devices capable of running iOS 6 and above, including iPhone 5, iPhone 4S, iPad (3rd gen) etc.

Comments

Happened something similar to me.

Have you fully initialized the UITextView from your ViewController using next configuration?

hashtagTextStore = [LVHashtagTextStorage new]; NSLayoutManager layoutManager = [NSLayoutManager new]; [hashtagTextStore addLayoutManager: layoutManager]; NSTextContainer textContainer = [[NSTextContainer alloc] initWithSize: CGSizeZero]; [layoutManager addTextContainer: textContainer]; 

LVTextFieldTest* productDescription = [[LVTextFieldTest alloc] initWithFrame:CGRectMake(15, 400, 300, 100)
                                                               textContainer:textContainer;
[_containerView addSubview:productDescription];
By gaston at Jan. 26, 2014, 5:40 p.m. (reply...)

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