gistfile1.txt

//Setup transition on both _visibleLayer and newLayer
        CATransition* transition = [CATransition animation];
        transition.startProgress = 0;
        transition.endProgress = 1.0;
        transition.type = kCATransitionPush;
        transition.subtype = kCATransitionFromRight;
        transition.duration = 0.5;
        [layer addAnimation:transition forKey:@"sublayers"];
        
        
//Swap layers
[self.layer replaceSublayer:_visibleLayer with:newLayer];