iOS Rendering PDFs on a Background Thread
iOS Rendering PDFs on a Background Thread
- Subject: iOS Rendering PDFs on a Background Thread
- From: Dave <email@hidden>
- Date: Thu, 26 Jul 2012 22:09:35 +0100
Hi All,
I like to be able to fire off a Background thread that Renders PDF
pages to UIImage's.
I've got the code working on the Main Thread, but now the tricky bit
because since I am using UIGraphicsBeginImageContextWithOptions and
UIGraphicsEndImageContext in order to capture the Image, and, as far
as I know these methods can only be called on the Main Thread. Is
this correct?
I can re-code this using CF/CG etc. but I'd like to know if:
1. The CF/CG functions are thread safe.
2. The CGPDF functions are also thread safe.
Any help appreciated.
All the Best
Dave
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