Open Radar

 
Summary:
When using the following method to create a resizable image

UIImage * image = [[UIImage imageNamed:@"pill"] resizableImageWithCapInsets:UIEdgeInsetsMake(17.5, 17.5, 17.5, 17.5)];

you can see lots of logs output in the console, like the ones that I copied here under. These logs would not be so annoying if later on when rendering the image after leaving and redisplaying a view controller including it, the image was not rendering incorrectly. 

In the case of the image included in the sample project, I would loose the rounded corners, for example. 

The error logs will disappear when using integer insets. (Using 18 instead of 17.5 fixes the problem). The bug only happens on device, I have seen it on iPhone 6 and iPhone 6S+ 

Apr 12 13:59:23  TestFloat[392] <Error>: CGContextRestoreGState: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
Apr 12 13:59:23  TestFloat[392] <Error>: CGContextGetCTM: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
Apr 12 13:59:23  TestFloat[392] <Error>: CGContextSaveGState: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
Apr 12 13:59:23  TestFloat[392] <Error>: CGContextClipToRect: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
Apr 12 13:59:23  TestFloat[392] <Error>: CGContextDrawTiledImage: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
Apr 12 13:59:23  TestFloat[392] <Error>: CGContextRestoreGState: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
Apr 12 13:59:23  TestFloat[392] <Error>: CGContextGetCTM: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
Apr 12 13:59:23  TestFloat[392] <Error>: CGContextSaveGState: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
Apr 12 13:59:23  TestFloat[392] <Error>: CGContextClipToRect: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
Apr 12 13:59:23  TestFloat[392] <Error>: CGContextDrawTiledImage: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
Apr 12 13:59:23  TestFloat[392] <Error>: CGContextRestoreGState: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.
Apr 12 13:59:23  TestFloat[392] <Error>: CGContextRestoreGState: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.

Steps to Reproduce:
Open the included project an run it on iPhone 6 under iOS 9.3.1

Expected Results:
No warnings, no rendering problem.

Actual Results:
Warnings and rendering problems. 

Version:
iOS 9.3.1 (13E238)

Notes:


Configuration:
iPhone 6 GSM under iOS 9.3.1