UITableView deleteRowsAtIndexPaths不删除行 [英] UITableView deleteRowsAtIndexPaths doesn't delete row

问题描述

我有UIView设计在IB，和UITableView上。在视图contoller的viewDidLoad方法中我init我的自定义UITableViewContoller并设置dataSource和委托：

I have UIView designed in IB, and UITableView on it. In view contoller's viewDidLoad method I init my custom UITableViewContoller and sets dataSource and delegate:

- (void)viewDidLoad {
    [super viewDidLoad];
    ...
    GoodsTableController *goodsController = [[GoodsTableController alloc] init];
    goodsController.data = [[orderData objectForKey:@"Result"] objectForKey:@"Items"];
    self.gtc = goodsController;
    [goodsController release];

    goodsTable.delegate = self.gtc;
    goodsTable.dataSource = self.gtc;
    [goodsTable reloadData];}

Intenting in GoodsTableController：

//in the header file
@interface GoodsTableController : UITableViewController {
        NSMutableArray *data;
}

@property (nonatomic, retain) NSMutableArray *data;

//implementation

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
        NSLog(@"Current data size %d", [data count]);
        return [data count];
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
        if (editingStyle == UITableViewCellEditingStyleDelete) {
                NSLog(@"Deleting row at index %d", indexPath.row);
                [self.tableView beginUpdates];

                [self.data removeObjectAtIndex:indexPath.row];
                [self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];

                [self.tableView endUpdates];
                [self.tableView reloadData];
        }
}

对于debug我使用NSLog，改变了，它的大小改变了，tableView：numberOfRowsInSection被调用，但表不更新。 这是日志：

2011-04-07 13:08:18.784 Test[32300:207] Current data size 2 //first call tableView:numberOfRowsInSection: by reloadData in View Controller after set data
2011-04-07 13:08:23.486 Test[32300:207] Current data size 2 //call after slide on row
2011-04-07 13:08:26.091 Test[32300:207] Deleting row at index 0 
2011-04-07 13:08:26.093 Test[32300:207] Current data size 1 //call after endUpdate
2011-04-07 13:08:26.096 Test[32300:207] Current data size 1 //call after reloadData

推荐答案

问题出现在GoodsTableController实例中未定义的tableView中。
固定代码：

The problem was in undefined tableView in GoodsTableController instance. Fixed code:

- (void)viewDidLoad {
        [super viewDidLoad];
        ...
        GoodsTableController *goodsController = [[GoodsTableController alloc] init];
        goodsController.data = [[orderData objectForKey:@"Result"] objectForKey:@"Items"];
        self.gtc = goodsController;
        [goodsController release];

        goodsTable.delegate = self.gtc;
        goodsTable.dataSource = self.gtc;

        //Fix there:
        self.gtc.tableView = goodsTable;  
        [goodsTable reloadData];
}

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