ios - 访问 cellforrow 之外的 tableview 内容

Question

我有一个 View ，其中顶部有一个按钮，底部有一个带有自定义单元格的表格 View
自定义单元格我有一个文本字段，我试图通过点击顶部的那个按钮来访问 tableview 单元格之外的文本字段内容以获取行方法，如果我滚动到顶部并点击，则只显示可见的单元格文本保存时，底部文本字段值为零，如果我滚动到底部并点击保存底部文本字段值为零，我想这与带有标识符的可恢复单元格出列有关。

//表格 View 方法

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

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




for (NSInteger i=0; i<selectedButtonsArray.count; i++)
{

    NSNumber * num = [selectedButtonsArray objectAtIndex:i];
    NSIndexPath * indexPath=[NSIndexPath indexPathForRow:[num intValue] inSection:0];
    AcessoryCell *cell = (AcessoryCell *) [self.acessoryTableView cellForRowAtIndexPath:indexPath];
    NSLog(@"text field text is %@", cell.celltextField.text);


}

日志是

text is 1
text is 1
text is 1
text is 1
text is 1
text is 1
text is (null)
text is (null)

如果我滚动到底部然后日志是

text is (null)
text is (null) 
text is 1
text is 1
text is 1
text is 1
text is 1
text is 1

Answer 1

尝试一下它的工作原理:

    NSIndexPath *indexPath = [NSIndexPath indexPathForRow:YOUR_ROW inSection:YOUR_SECTION];

UITableViewCell* cell = [yourTable cellForRowAtIndexPath:indexPath];
cell.textLabel.textColor = YOUR_COLOR;
[yourTable reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];