in - (void)loadView in your UIViewController add: UIView *subView = [[UIView alloc] initWithFrame:CGRectMake(myLayer.position.x, myLayer.position.y, myLayer.contentSize.height, myLayer.contentSize.width)];        [self.view addSubview:subView ];

as well as:

yourScrollView.minimumZoomScale = 0.25;  // your own value

yourScrollView.maximumZoomScale = 1.0; // your own value

in your UIScrollView delegate implement:

- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView{    return [[self subviews] objectAtIndex:0];}- (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(float)scale {}- (void)scrollViewDidZoom:(UIScrollView *)scrollView{    CCLayer *targetLayer = [[[CCDirector sharedDirector]runningScene].children objectAtIndex:0 ];    targetLayer.scale = self.zoomScale;} 

in - (void)loadView in your UIViewController add:

 UIView *subView = [[UIView alloc] initWithFrame:CGRectMake(myLayer.position.x, 
myLayer.position.y, 
myLayer.contentSize.height, myLayer.contentSize.width)];        [self.view addSubview:
subView ];as well as:yourScrollView.minimumZoomScale = 0.25;  // your own valueyourScrollView.maximumZoomScale = 1.0; // your own valuein your UIScrollView delegate implement:

- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView{    return [[self subviews] objectAtIndex:0];}

- (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(float)scale {}

- (void)scrollViewDidZoom:(UIScrollView *)scrollView{    CCLayer *targetLayer = [[[CCDirector sharedDirector]runningScene].children objectAtIndex:0 ];    targetLayer.scale = self.zoomScale;}

This will enable zooming of your layer, however, I still encounter a problem that when zooming, the scaled layer’s position gets pushed to the top right outside of the pannable, zoomable view when zooming scale is lower than 1.0      Does anyone have a solution to this?

“The view returned from viewForZoomingInScrollView: must be a subview of the scroll view. It can not be the scroll view itself.”

What I gather from this is that if I want to use the scrollView to zoom a cocos2d layer, I would have to first:
- create a subview- then attach my layer to it
The scrollView should then zoom the subview and since the layer is statically bound to the subview, it will scale with it.

That’s the idea at least….