Question

有时我可以删除表格的第一条记录，但之后我就无法删除另一条记录。

我宣布一个数组

@implementation TableViewController{
NSMutableArray *tableData;
}

查看了加载方法

- (void)viewDidLoad {
     [super viewDidLoad];

     tableData = [NSMutableArray arrayWithObjects:@"Egg Benedict", @"Mushroom Risotto", @"Full Breakfast", @"Hamburger", @"Ham and Egg Sandwich", @"Creme Brelee", @"White Chocolate Donut", @"Starbucks Coffee", @"Vegetable Curry", @"Instant Noodle with Egg", @"Noodle with BBQ Pork", @"Japanese Noodle with Pork", @"Green Tea", @"Thai Shrimp Cake", @"Angry Birds Cake", @"Ham and Cheese Panini", nil];
}

设置行的标签

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

- (UITableViewCell *)tableView:(UITableView *)tableView   cellForRowAtIndexPath:(NSIndexPath *)indexPath{

    static NSString *simpleTableIdentifier = @"SimpleTableCell";

    SimpleTableCell *cell = (SimpleTableCell *)[tableView dequeueReusableHeaderFooterViewWithIdentifier:simpleTableIdentifier];

    if(cell == nil){
        NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"SimpleTableCell" owner:self options:nil];
        cell = [nib objectAtIndex:0];
    }
    cell.nameLabel.text = [tableData objectAtIndex:indexPath.row];    
    return cell;
}

当我滑动删除按钮时出现。

-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath{

    //remove the row from data model
    [tableData removeObjectAtIndex:indexPath.row];
    [tableView reloadData];
}

@end

Answer 1

请改为尝试：

-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath

{
    //remove the row from data model
    [tableData removeObjectAtIndex:indexPath.row];
    [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
}

希望有所帮助。

当我尝试从表中删除行时，应用程序崩溃

1 个答案: