iOS筆記：UITableView Programming

這次在練習利用code把UITableView建立出來
1. 在'h'中宣告delegate 跟 datasource.

@interface ViewController : UIViewController <UITableViewDelegate, UITableViewDataSource>
@property (strong, nonatomic) UITableView *tableview;
@end

2.

@interface ViewController ()
{
    NSMutableArray *testArray;
}
@end

@implementation ViewController
- (void)viewDidLoad {
    [super viewDidLoad];
    _tableview = [[UITableView alloc] initWithFrame:self.view.bounds style:UITableViewStylePlain];
    [self.view addSubview:_tableview];
    _tableview.delegate = self;
    _tableview.dataSource = self;
    testArray = [NSMutableArray arrayWithObjects:@"Iron Man", @"Spiderman", @"Superman", @"Batman", nil];
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return [testArray count];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell"];
    if (cell == nil) {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"Cell"];
    }
    cell.textLabel.text = [testArray objectAtIndex:indexPath.row];
    return  cell;
}
@end

Error

Solution:
1. http://stackoverflow.com/questions/25826383/when-to-use-dequeuereusablecellwithidentifier-vs-dequeuereusablecellwithidentifi
2. http://stackoverflow.com/questions/12737860/assertion-failure-in-dequeuereusablecellwithidentifierforindexpath

參考：
1. https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/TableView_iPhone/CreateConfigureTableView/CreateConfigureTableView.html