How to make the area above UITableView transparent

Question

My original necessary was to make the area above uitableview transparent and show the imageview under it, just like this:

I know there are many ways to implement this effect and I just wonder why cells can be transparent and show the content under them but the area above uitableview can't. Is there any way?

Answer 1

将UITableView的背景色设置为clearColor

Answer 2

将ui tableview背景色设为透明色

Answer 3

If you want transparent area only once then create UIView with background color clearColor . And set UITableView header view tableView.tableHeaderView = headerView;

If you want transparent area for every section then -

-(CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
     //return height of transparent area
}

then,

-(UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
      // return UIView with clearColor.
}

Answer 4

如果您使用的是分组的表格视图（我看不到您提供的图像）：

[self.tblView setBackgroundView:nil];