NSString *URL =@"http://xxx.jpg";

    NSData *imageData = [[NSDataalloc]initWithContentsOfURL:[NSURLURLWithString:URL]];

    UIImage *image=[[UIImagealloc] initWithData:imageData];

    [imgADBanner setImage:image];

    UITapGestureRecognizer *singleTap = [[UITapGestureRecognizeralloc] initWithTarget:selfaction:@selector(handleSingleTap:)];

    [imgADBanneraddGestureRecognizer:singleTap];

    [singleTap release];

    [imageData release];

- (void)handleSingleTap:(UIGestureRecognizer *)gestureRecognizer { 

    //do something....

}

摘自 sql_help的專欄