更改 uitableview 中的特定单元格 [英] Changing specific cells in uitableview

问题描述

我有一个 uitableview，但我想禁用某些单元格并启用其他单元格.我使用以下代码禁用了除 cellForRowAtIndexPath 中的第一个之外的所有单元格:

I have a uitableview but I want to disable some cells and leave others enabled. I used the following code to disable all cells except for the first in the cellForRowAtIndexPath:

if ([indexPath row] > 0 ) {
    cell.selectionStyle = UITableViewCellSelectionStyleNone;
    cell.userInteractionEnabled = NO;
    cell.textLabel.textColor = [UIColor lightGrayColor];
}

但不是禁用所有单元格并启用第一个单元格，而是禁用所有单元格并启用最后一个单元格.为什么会发生这种情况?我该怎么做才能让它发挥作用?

But instead of disabling all cells and enabling the first, it disabled all cells and enables the last. Why does this happen? And what can I do to get it to work?

顺便说一句，这是我所有 cellForRowAtIndexPath 的代码:

BTW Here's my code for all cellForRowAtIndexPath:

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

    sectionContents = [[self listOfItems] objectAtIndex:[indexPath section]];
    contentsForThisRow = [sectionContents objectAtIndex:[indexPath row]];

    if ([indexPath row] > 0 ) {
        cell.selectionStyle = UITableViewCellSelectionStyleNone;
        cell.userInteractionEnabled = NO;
        cell.textLabel.textColor = [UIColor lightGrayColor];
    }
    static NSString *CellIdentifier = @"Cell";

    cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease];
    }

    cell.textLabel.text = contentsForThisRow;
    return cell;
}

推荐答案

用这个替换你的 cellForRowAtIndexPath: 代码

Replace your code of cellForRowAtIndexPath: with this one

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

    sectionContents = [[self listOfItems] objectAtIndex:[indexPath section]];
    contentsForThisRow = [sectionContents objectAtIndex:[indexPath row]];

    static NSString *CellIdentifier = @"Cell";

    cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1        reuseIdentifier:CellIdentifier] autorelease];
    }

    cell.textLabel.text = contentsForThisRow;
    if ([indexPath row] > 0 ) {
        cell.selectionStyle = UITableViewCellSelectionStyleNone;
        cell.userInteractionEnabled = NO;
        cell.textLabel.textColor = [UIColor lightGrayColor];
    }
    return cell;
}

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