OS bug, been reported quite a lot of times.
On 30 Oct, 2013, at 6:07 pm, Viacheslav Karamov <ubuntul...@yandex.ru> wrote:
> I have two texitfields on login form. When I rotate the device, I got a lot
> of error message in a debugger console:
>
> <Error>: CGContextSetFillColorWithColor: invalid context 0x0. This is a
> serious error. This application, or a library it uses, is using an invalid
> context and is thereby contributing to an overall degradation of system
> stability and reliability. This notice is a courtesy: please fix this
> problem. It will become a fatal error in an upcoming update.
>
> <Error>: CGContextSaveGState: invalid context 0x0. This is a serious error.
> This application, or a library it uses, is using an invalid context and is
> thereby contributing to an overall degradation of system stability and
> reliability. This notice is a courtesy: please fix this problem. It will
> become a fatal error in an upcoming update.
> ....
>
> After some googling I have implemented drawLayer:inContext: my UITextField
> subclass:
>
> - (void) drawLayer:(CALayer *)layer inContext:(CGContextRef)ctx
> {
> UIGraphicsPushContext(ctx);
> [super drawLayer:layer inContext:ctx];
> UIGraphicsPopContext();
> }
>
> but this didin't help at all.
>
> Thank you for help in advance,
> Vyacheslav.
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