Question

I need to show a UIActionSheet on a popover and this popover has an arrow pointing to an element on Cocos2D.

I need to calculate this element’s boundingBox rect in terms of the director view coordinates where the UIActionSheet will be shown, so the action sheet arrow will be pointing to it.

How do I do that?

Answer 1

This is a quick sample I created, Just change the UIPopoverController to your UIActionSheet.

CCNode* node = (CCNode *)sender;
CGPoint worldPoint = [node convertToWorldSpace:CGPointZero];
CGRect rect = [sender boundingBox];
rect.origin = worldPoint;
// Convert position based on Apple's anchor point from cocos2d's anchor point
rect.origin.y = rect.origin.y + rect.size.height;
CGPoint convertedLocation = [[CCDirector sharedDirector] convertToUI:ccp(rect.origin.x, rect.origin.y)];
rect.origin = convertedLocation;

UIViewController* viewController= [[UIViewController alloc] init];
[[viewController view] setBackgroundColor:[UIColor greenColor]];
UIPopoverController* c = [[UIPopoverController alloc] initWithContentViewController:viewController];
[c presentPopoverFromRect:rect inView:[[CCDirector sharedDirector] view] permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];