转载学习:tabbleView顶部图片的拉伸效果,

_heroBigImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"hero_bg.jpg"]];
    _heroBigImageView.frame = CGRectMake(0, -150, 320, 150);
//还要设置

       contentMode = UIViewContentModeScaleAspectFill;

        .clipsToBounds = YES;

[_tableView addSubview:_heroBigImageView];

2 设置tableview的contentInset,向下移动150
_tableView.contentInset = UIEdgeInsetsMake(150, 0, 0, 0);



3 scrollview的代理,获取contentoffset,然后从新设置imageview的frame
- (void)scrollViewDidScroll:(UIScrollView *)scrollView { //获取当前活动的tableview CGFloat y = scrollView.contentOffset.y; if (scrollView == _tableView) { if (y < -150) { CGRect frame = _heroBigImageView.frame; frame.size.height = - y ; frame.origin.y = y; _heroBigImageView.frame = frame; } } }
posted @ 2016-09-14 12:56  kkkore  阅读(329)  评论(0编辑  收藏  举报