iphone - 如何获取UIView的 subview ？

Question

根据这段代码如果我想访问imageView1和imageView2我怎样才能访问它？请给我看一些例子

示例 cell.accessoryView.subviews ？

UIImageView *imageView1 = [[[UIImageView alloc] init] autorelease];
UIImageView *imageView2 = [[[UIImageView alloc] init] autorelease];
imageView2.alpha = 0;
[cell.accessoryView addSubview:imageView1];
[cell.accessoryView addSubview:imageView2];

Answer 1

您可以使用 View 的标签属性:

UIImageView *imageView1 = [[[UIImageView alloc] init] autorelease];
imageView1.tag = 100;
UIImageView *imageView2 = [[[UIImageView alloc] init] autorelease];
imageView2.tag = 200;
imageView2.alpha = 0;
[cell.accessoryView addSubview:imageView1];
[cell.accessoryView addSubview:imageView2];

然后使用 -viewWithTag: 方法获取 subview :

UIImageView *getImageView1 = (UIImageView*)[cell.accessoryView viewWithTag:100];