UIImageview 点击事件
UIImageView *imageView =[[UIImageView alloc]initWithFrame:CGRectMake(100, 100, 200, 200)];
imageView.image=[UIImageimageNamed:@"filter_laozhaopian_a.png"];
imageView.userInteractionEnabled = YES;
UITapGestureRecognizer *singleTap = [[UITapGestureRecognizeralloc] initWithTarget:selfaction:@selector(UesrClicked:)];
[imageView addGestureRecognizer:singleTap];
[singleTap release];
[self.view addSubview:imageView];