1、生成view的xib
![](https://img.haomeiwen.com/i2138722/dbc76b6570da7e8a.png)
2、选中view、把刚刚新的UIView的Simulated Metrics的Size设置成Freeform,改变view的尺寸
![](https://img.haomeiwen.com/i2138722/18c429f432e9970b.png)
3、在控制器中设置生成view的视图,不要确定view的高度
MEDWorkDailyDetailHeader *header = [MEDWorkDailyDetailHeader header];
[header setNeedsLayout];
[header layoutIfNeeded];
header.autoresizingMask = UIViewAutoresizingFlexibleWidth;
header.delegate = self;
self.tableView.tableHeaderView = header;
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