Question

I have googled and searched here on stackoverflow, but haven’t been able to find a solution.

What I expect to happen: UITableView to display and show cells containing “hi”

What happens: UITableView doesn’t even display

viewViewController.h

#import <UIKit/UIKit.h>

@interface viewViewController : UIViewController

@property (strong, nonatomic) IBOutlet UITableView *tableView;
//note: the above property is connected to my UITableViewController

@end

viewViewController.m

#import "viewViewController.h"

@interface viewViewController ()

@end

@implementation viewViewController
@synthesize tableView = _tableView;

- (UITableView *)tableView
{
    if (!_tableView){

        _tableView = [[UITableView alloc] initWithFrame:CGRectZero style:UITableViewStyleGrouped];
    }
    return _tableView;
}

- (void)viewDidLoad
{
    [super viewDidLoad];


    //_tableView = [[UITableView alloc] init];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)viewDidUnload
{
    //[self setTableView:nil];
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    //warning Potentially incomplete method implementation.
    // Return the number of sections.
    return 2;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    NSLog(@"asking for rows");
    //#warning Incomplete method implementation.
    // Return the number of rows in the section.
    switch (section)
    {
        case 0:
            return 5;
        case 1:
            return 10;
            break;
        default:
            return 0;
            break;
    }
}

- (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];
        cell.selectionStyle = UITableViewCellSelectionStyleNone;
    }
    cell.textLabel.text = @"hi";
    return cell;

}

- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
    return @"testtext";
}


@end

Please tell me what I have done wrong and correct my code.

Answer 1

1. Add some protocols to your view controller:

   @interface viewViewController : UIViewController

2. Check to be sure you’re connecting the delegate and datasource properties from tableView to File’s Owner.