How Can I Record the Screen with Acceptable Performance While Keeping the UI Responsive?

Question

I\'m looking for help with a performance issue in an Objective-C based iOS app.

I have an iOS application that captures the screen\'s contents using CALayer\'s renderInC

Answer 1

Maybe you can record at half resolution to speed up things, if that fits the requirements?

Answer 2

"Since the layer must be rendered on the main thread" this is not true, as long as you don't touch UIKit.

Please see https://stackoverflow.com/a/12844171/136305