objective-c - 带有自定义表格 View 单元格的无法识别的选择器

Question

我有一个自定义的表格 View 单元格。但是当我想在我的 cellForRowAtIndexpath 中调用这个单元格时，它会出现以下错误。

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UITableViewCell lblPosition]: unrecognized selector sent to instance 0xa62a600'

我检查了 100 次是否正确连接并正确命名，但仍然没有发现问题所在。这就是我在代码中所做的。

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *simpleTableIdentifier = @"KlassementCell";

    KlassementCell *cell = (KlassementCell *)[tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
    if (cell == nil)
    {
        NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"KlassementCell" owner:self options:nil];
        cell = [nib objectAtIndex:0];
    }

    // ask NSFetchedResultsController for the NSMO at the row in question
    Klassement *klassement = [self.fetchedResultsController objectAtIndexPath:indexPath];
    // Then configure the cell using it ...
    NSString *pointDiff = [NSString stringWithFormat:@"%@", klassement.goalsDiff];
    NSLog(@"position %@",klassement.position);
    NSLog(@"name %@",klassement.name);
    cell.lblPosition.text       = klassement.position;
    cell.lblName.text           = klassement.name;
    cell.lblgamesPlayed.text    = klassement.gamesPlayed;
    cell.lblGamesWon.text       = klassement.gamesWon;
    cell.lblGamesTied.text      = klassement.gamesTied;
    cell.lblGamesLost.text      = klassement.gamesLost;
    cell.lblGoalsPos.text       = klassement.goalsPos;
    cell.lblGoalsNeg.text       = klassement.goalsNeg;
    cell.lblGoalsDiff.text      = pointDiff;
    cell.lblPoints.text         = klassement.points;

    return cell;
}

有人可以帮忙吗？

亲切的问候。

Answer 1

尝试

if ((cell == nil) || (![cell isKindOfClass: KlassementCell.class])) {

队列中返回的单元格可能不是 KlassementCell。