ios - 返回表中的单元格数会产生 NSInternalInconsistenceyException

Question

尝试在我的表格中添加一个包含 6 个单元格的部分。我只有一些基本代码，它无法编译给我“'UITableView dataSource 必须从 tableView:cellForRowAtIndexPath:' 返回一个单元格”。我相信这与未设置数据源有关，但我不确定。这是代码:

- (void)viewDidLoad
{
    [super viewDidLoad];
    germanMakes = @[@"Mercedes-Benz", @"BMW", @"Porsche",
                    @"Opel", @"Volkswagen", @"Audi"];

    // Uncomment the following line to preserve selection between presentations.
    // self.clearsSelectionOnViewWillAppear = NO;

    // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
    // self.navigationItem.rightBarButtonItem = self.editButtonItem;
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
#warning Potentially incomplete method implementation.
    // Return the number of sections.
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
#warning Incomplete method implementation.
    // Return the number of rows in the section.
    return germanMakes.count;
}

Answer 1

您必须实现所考虑的方法:

- (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.textLabel.text = germanMakes[indexPath.row];

    return cell;
}