Question

I have a button (a UINavigationBarItem) used for editing my UITableView, which only allows deletions. So when I press delete, the little red line comes up next to each cell, and I can delete each row.

When the button is pressed, the following function is called:

-(void)editButtonSelected:(id)sender {

    if(self.editing)
        NSLog(@"self.editing = true");
    else
        NSLog(@"self.editing = false");

    if(self.editing) {
        [super setEditing:NO animated:NO];
        [tableView setEditing:NO animated:NO];
        [tableView reloadData];
        [leftButton setTitle:@"Delete"];
        [leftButton setStyle:UIBarButtonItemStylePlain];
        self.editing = false;
    }
    else {
        [super setEditing:YES animated:YES];
        [tableView setEditing:YES animated:YES];
        [tableView reloadData];
        [leftButton setTitle:@"Done"];
        [leftButton setStyle:UIBarButtonItemStyleDone];
        self.editing = true;
    }
}

And it works fine. But only for a while. As soon as I introduce a new UIViewController, and then dismiss that controller, this delete function doesn’t work on this main screen I have. It works fine until a new UIViewController is put on top. The button itself works fine, and the value of self.editing does get toggled between true and false correctly, but the little red lines do not show up. Why could this be happening?

Answer 1

I would guess that the target on your UINavigationBarItem is still set to the first view controller, not the subsequent view controllers that get pushed on the stack.