ios - How to get know that CGContext is drawing to screen -



ios - How to get know that CGContext is drawing to screen -

i want know current cgcontext used image, pdf or screen drawing. in cocoa utilize [[nsgraphicscontext currentcontext] isdrawingtoscreen] ([nsgraphicscontext currentcontextdrawingtoscreen] on 10.10). how can same info cgcontext?

contrary desktop, on ios there's no direct drawing screen views layer backed. question is: how can tell if current context used fill contents of layer?

i'm not aware of public api answers this.

ios cgcontextref drawingcontext

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