implementing touches to drag various images with finger - objective-c

Question

I'm trying to be able to drag various images around using touches. So far, I'm trying to get it to work with just 1 image, but it's not working (i.e. I can't move the image with my finger). What am I doing wrong?
I have several files with the following code:
DragView.h
#interface DragView : UIImageView {
}
#end
DragView.m
#include "DragView.h"
#implementation DragView
- (void)touchesMoved:(NSSet *)set withEvent:(UIEvent *)event {
CGPoint p = [[set anyObject] locationInView:self.superview];
self.center = p;
}
#end
ViewController.h
#import <UIKit/UIKit.h>
#import "DragView.h"
#interface ViewController : UIViewController {
}
#property (nonatomic, strong) DragView *basketView;
#end
ViewController.m
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
#synthesize basketView;
- (void)viewDidLoad
{
[super viewDidLoad];
basketView = [[DragView alloc]
initWithImage:[UIImage imageNamed:#"basket.png"]];
basketView.frame = CGRectMake(140, 340.2, 60, 30);
[self.view addSubview:basketView];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end

Answer 1

Try this:
basketView.userInteractionEnabled = YES;
Documentation says that:
New image view objects are configured to disregard user events by default. If you want to handle events in a custom subclass of UIImageView, you must explicitly change the value of the userInteractionEnabled property to YES after initializing the object.