Question

I’m following iPhone dev courses from Stanford Open-University, and I’ve been blocked for 2 days on assignment3, maybe someone can help me here?

The tasks are:

1. Create a custom UIView subclass that will display your PolygonShape object
2. Give your view class access to the PolygonShape object so that it can retrieve the details of the polygon as needed

The problem is: how do I give my view class access to the polygon object defined in my controller?

Here is my implementations if it can help:

CustomView.h:

#import 'PolygonShape.h'  @interface CustomView : UIView {     IBOutlet PolygonShape *polygon; } - (NSArray *)pointsForPolygonInRect:(CGRect)rect numberOfSides:(int)numberOfSides;  @end 

Controller.h:

#import <UIKit/UIKit.h> #import <Foundation/Foundation.h> #import 'PolygonShape.h' #import 'PolygonView.h'  @interface Controller : NSObject {     IBOutlet UIButton *decreaseButton;     IBOutlet UIButton *increaseButton;     IBOutlet UILabel *numberOfSidesLabel;     IBOutlet PolygonShape *polygon;     IBOutlet PolygonView *polygonView; } - (IBAction)decrease; - (IBAction)increase; - (void)awakeFromNib; - (void)updateInterface; @end 

Answer 1

And after you figure it out, it might not hurt to touch up on some objective-c basics:

http://www.cocoacast.com/?q=node/103