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I need to render some text to context in the background thread. Now I am using [NSString drawInRect:withFont:lineBreakMode:] method to render it in the main thread. But I've read that I cannot use this method in the background thread. Could you help me? P.S. my minimal

Siarhei Fedartsou
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  • "Ok, but I've read here, that "UIStringDrawing methods are only safe to use from the main queue on iOS 6". You are right, [there is a known bug about this](http://stackoverflow.com/a/12870371/335858). I deleted my answer because I did not know about that bug. – Sergey Kalinichenko Oct 27 '13 at 14:20

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It is generally advicable to do UI operations in foreground.Since UIKit is not thread safe. Check this post -->performing drawRect in background thread and sizeWithFont using NSOperationQueue crashes app

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Harini Vasanthakumar
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