Question

barView I have a Table View and, in each cell, I want to draw some statistic bars. I have an empty UIView created in my custom cell, its name is mainView and it is the view where the chart is drawn.

In cellForRowAtIndexPath I’m doing this:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"CustomCellIdentifier";
    CustomCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];

    CGRect barRect = CGRectMake(0, 0, 100, 10);

    UIView *barView = [[UIView alloc] initWithFrame:barRect];
    [barView setBackgroundColor:[UIColor redColor]];
    [cell.mainView addSubview:barView];

    return cell;
}

The barView is not displaying on loading. It only shows after I change and return from another tab or after the cell goes out of the screen.

Notes:

• I have tried [cell.mainView setNeedsDisplay];
• I have a header made with another custom cell.

Answer 1

I have solved it easily with:

- (void)viewDidAppear:(BOOL)animated
{
    [self.tableView reloadData];
}

It seems that adding a subview cant be done before the view is created in the window, before the cells are completely loaded.