删除Uitableviewcontroller上托管的Uitableview顶部或底部的视图？

Question

I am currently trying to remove the top or bottom view from my tableview but the size of the whole tableview isnt just right. Here is what i did so far.

• Created a TableviewController inside the Storyboard
• Created a Class derived from UITableViewController and set everything up like delegate etc.
• Dragged a view to the top of the tableview inside the Storyboard
• Created and connected an outlet named topview for this
• In Viewwillappear i will remove that topview dependent of some value so i tried some things

 -(void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; if(foo){ [self.topView setHidden:YES]; // or [self.topView removeFromSuperview]; // or [self.topView setFrame:CGRectMake(0, 0, 0, 0)]; } } 

For example if i remove the view from superview the topview isnt available anymore but there is a big gap on top .. how can i remove this top view from my tableview without having this gap ?

I put some Screenshots to describe my Problem:

Answer 1

If you put it inside the tableview it is probably the tableHeaderView. Try this:

self.tableView.tableHeaderView = nil;

Should remove the view and update the tableview accordingly.

Answer 2

[self.tableview reloadData]

删除topview后，或者如果您使用自动布局，则可以使用[self.view updateConstraints];