UITextView text support for another language -iOS7 app crash

Question

My app is getting crash on iOS7

In my app, I have language option. One is English and other is Kannada .

When user selects Kannada, all text turns into Kannada. I have one textview in which I have added static text in Kannada. When user navigates to that view, the app crashes on iOS7 , while on iOS8 it's working fine.

I am not getting any log for crash. I can only see EXC_BAD_ACCESS (code = 1, ...) . I have tried it by keeping "Enable Zombies" option, still not getting any log in console.

PS - I have static text in textview . I am not adding text dynamically. I am just hiding/un-hiding textviews . I can see and read the text in Kannada in my textview in storyboard.

Answer 1

It may be a strange behavior in iOS 7, and it seems to be a bug in the way NSLayoutManager layouts the text for Kannada language. As other answers pointed out, UITextView is build around TextKit since iOS7 , and thus uses NSLayoutManager internally to layout text.