UITableViewHeaderFooterView in iOS 8

Question

I have a UITableViewHeaderFooterView in which I change the textLabel font and the background color

UITableViewHeaderFooterView* header = [tableView dequeueReusableHeaderFooterViewWithIdentifier:@"header"];
if(!header)
{
    header = [[UITableViewHeaderFooterView alloc] initWithReuseIdentifier:@"header"];
    [header.textLabel setFont:[UIFont boldSystemFontOfSize:15]];
    [header.contentView setBackgroundColor:[UIColor colorWithRed:213/255.0 green:213/255.0 blue:213/255.0 alpha:1]];
}

Here is how iOS 7 shows it:

Here is how iOS 8 shows it: The setFont: doesn't seems to take effect here, or the 15pt font is bigger on iOS 8 that on iOS 7

Here is how iOS 8 shows it when I remove the setFont: call

As you can see, setFont has no effect on the font, but it has on the textColor.

Am I missing something or those are "beta bugs" (I'm using simulators from XCode6 GM seed, and I have the same issue on a iPhone 5 with iOS 8 beta 5) ?

Edit: iOS 8 release and XCode 6.0.1 doesn't seems to fix the problem

Answer 1

Based on tubtub's answer, I made a UITableViewHeaderFooterView subclass:

@interface CompatibilityTableViewHeaderFooterView : UITableViewHeaderFooterView
@property (nonatomic,readonly) UILabel* compabilityTextLabel;
@end

@implementation CompatibilityTableViewHeaderFooterView
{
    UILabel* iOS8TextLabel;
    NSLayoutConstraint* iOS8TextLabelLeftMarginConstraint;
}

-(instancetype) initWithReuseIdentifier:(NSString *)reuseIdentifier
{
    if (self = [super initWithReuseIdentifier:reuseIdentifier])
    {
        self.contentView.backgroundColor = GRIS_213;
        self.compabilityTextLabel.font = [UIFont boldSystemFontOfSize:15];
    }
    return self;
}

-(UILabel*) compabilityTextLabel
{
    if ([UIDevice currentDevice].systemVersion.floatValue < 8.0)
    {
        return self.textLabel;
    }
    else
    {
        if (!iOS8TextLabel)
        {
            iOS8TextLabel = [[UILabel alloc] init];
            iOS8TextLabel.translatesAutoresizingMaskIntoConstraints = NO;

            [self addSubview:iOS8TextLabel];

            iOS8TextLabelLeftMarginConstraint = [NSLayoutConstraint constraintWithItem:iOS8TextLabel attribute:NSLayoutAttributeLeading relatedBy:NSLayoutRelationEqual toItem:self attribute:NSLayoutAttributeLeft multiplier:1 constant:0];

            [self addConstraint:iOS8TextLabelLeftMarginConstraint];
            [self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:[iOS8TextLabel]-(>=0)-|" options:0 metrics:nil views:NSDictionaryOfVariableBindings(iOS8TextLabel)]];
            [self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[iOS8TextLabel]|" options:0 metrics:nil views:NSDictionaryOfVariableBindings(iOS8TextLabel)]];
        }
        return iOS8TextLabel;
    }
}

-(UITableView*) searchForTableView
{
    UIView* currentView = self;
    while (currentView)
    {
        currentView = currentView.superview;
        if ([currentView isKindOfClass:[UITableView class]])
        {
            return (UITableView*)currentView;
        }
    }
    return nil;
}

-(void) layoutSubviews
{
    [super layoutSubviews];

    UITableView* tableView = [self searchForTableView];
    if (tableView)
    {
        iOS8TextLabelLeftMarginConstraint.constant = tableView.separatorInset.left;
    }
}

So basically I now only use the compabilityTextLabelproperty instead of textLabel. Note that the left space constraint is automatically updated to match the tableView separator inset. Feel free to comment/improve my code ;)