Populating Tableview Cells in iOS 6

objective-c, uitableview

Solution

You forgot to register the nib/class for the cell identifier.

Form the Apple `UITableView` documentation:

Important: You must register a class or nib file using the `registerNib:forCellReuseIdentifier:` or `registerClass:forCellReuseIdentifier:` method before calling the `dequeueReusableCellWithIdentifier:forIndexPath:` method.

Here is an example for a plain `UITableViewCell`:

- (void) viewDidLoad {
   [super viewDidLoad];

   [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"Cell"];
}

If you do not register the nib/class the method `dequeueReusableCellWithIdentifier:forIndexPath:` is essentially the same as `dequeueReusableCellWithIdentifier:`. And it will not automatically create an instance for you.

Problem

I have tried searching up some tutorials on how to populate table views, but all I have found are old and outdated videos. I tried doing it from a slightly more recent one, and it does not work. I have ``` - (void)viewDidLoad { [super viewDidLoad]; [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"Cell"]; [chemarray addObject:@"2"]; [chemarray addObject:@"test"]; [chemarray addObject:@"3"]; [chemarray addObject:@"science"]; } ``` and ``` - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [chemarray count]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath { UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell" forIndexPath:indexPath]; cell.textLabel.text = [chemarray objectAtIndex:indexPath.row]; return cell; } ``` according to this tutorial, when run, it should display the items in my array, but for me, it does not! Does anyone know how to fix this?

Original source