是用的时候需要引入#import "BSYHeaderImageView.h"头文件，具体用法如下：
-
(void)viewDidLoad { [super viewDidLoad];
UITableView *tt = [[UITableView alloc]initWithFrame:[UIScreen mainScreen].bounds style:UITableViewStylePlain]; tt.dataSource = self; tt.delegate = self; tt.tableFooterView = [[UIView alloc]init]; tt.contentInset = UIEdgeInsetsMake(200, 0, 0, 0); [self.view addSubview:tt];
_imageView = [[BSYHeaderImageView alloc]init]; [tt addSubview:_imageView]; _imageView.nameLable.text = @"WOCAOCAO";
}
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(void)scrollViewDidScroll:(UIScrollView *)scrollView{
CGFloat y = scrollView.contentOffset.y;//根据实际选择加不加上NavigationBarHight（44、64 或者没有导航条） if (y < -200) { CGRect frame = _imageView.frame; frame.origin.y = y; frame.size.height = -y;//contentMode = UIViewContentModeScaleAspectFill时，高度改变宽度也跟着改变 _imageView.frame = frame; } OK，打完收工！
}