TableView is delegated, populates but wont group

Question

I am having a weird problem and i couldn`t find a solution (or something similar). The thing is, my UITableView Populates with initial info (for testing), but no matter what i do i can't seem to put it to grouped style (i can select it on the UI but it wont show)

I initially started a TabBar project and added a third navigationController view in the tabs.

#import <UIKit/UIKit.h>

@interface RootViewController : UITableViewController <UITableViewDelegate, UITableViewDataSource> {
NSMutableArray *tableData;
}

@property (nonatomic, retain) NSMutableArray *tableData;

-(void)initTableData;

@end

This is the header, and as you can see it has nothing out of the ordinary. The following code is inside the .m file of the header i just posted(ill only be posting uncommented code:

@synthesize tableData;

-(void)initTableData
{
    tableData = [[NSMutableArray alloc] init];
    [tableData addObject:@"Cidade"];
    [tableData addObject:@"Veículo"];
    [tableData addObject:@"Ano"];
    [tableData addObject:@"Valor"];
    [tableData addObject:@"Cor"];
    [tableData addObject:@"Combustível"];
}

- (void)viewDidLoad {
    [super viewDidLoad];
    self.title = @"Busca";
    UIBarButtonItem *_backButton = [[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStyleDone target:nil action:nil];
    self.navigationItem.backBarButtonItem = _backButton;
    [self initTableData];
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    // Return the number of sections.
    return 1;
}


- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    // Return the number of rows in the section.
    return 6;
}


// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *CellIdentifier = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
    }

    // Configure the cell...
    cell.textLabel.text = [tableData objectAtIndex:[indexPath row]];

    return cell;
}

- (void)dealloc {
    [tableData release];
    [super dealloc];
}

Nothing out of the ordinary again as you can see... Any idea of what may be causing this? I tried

- (id)initWithStyle:(UITableViewStyle)style {
    // Override initWithStyle: if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad.
    self = [super initWithStyle:UITableViewStyleGrouped];
    if (self) {
        // Custom initialization.
    }
    return self;
}

because i don't know what else to do. (also didn't worked) Again, i got the delegate and datasource set to File`s Owner.

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    

    // Override point for customization after application launch.

    // Set the tab bar controller as the window's root view controller and display.

    self.window.rootViewController = self.tabBarController;
    RootViewController *rvc = [[RootViewController alloc] initWithStyle: UITableViewStyleGrouped];

    [self.window makeKeyAndVisible];

    return YES;
}

Answer 1

As you have modified the - (id)initWithStyle:(UITableViewStyle)style initializer to return a UITableView with a grouped style, do you call this initializer when you initialize the RootViewController?

RootViewController *rvc = [[RootViewController] alloc] initWithStyle: UITableViewStyleGrouped];