1

セクションを展開しようとすると、展開すると各セクションが 2 行になります。クラッシュを与えています。以下は試しているコードです。

-(NSInteger) numberOfSectionsInTableView:(UITableView *)tableView
{
return [self.mArrQues count];
}

-(NSInteger) tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if(!helpOn)
    return 1;
else
    if(section == selectedCellIndexPath)
    {
    return 2;
    }
    else{
        return 1;
    }
return 1;
}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellIdentifier = @"CellIdentifier";
UITableViewCell *cell;
cell = [self.mHelpTable dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil) {
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
}
else{
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
}

UIView* myBackgroundView = [[UIView alloc] initWithFrame:CGRectZero];
myBackgroundView.backgroundColor = [UIColor colorWithRed:240.0/255.0 green:240.0/255.0 blue:240.0/255.0 alpha:1.0];
cell.backgroundView = myBackgroundView;
//[cell addSubview:myBackgroundView];

if(!helpOn)
{
    cell.textLabel.text = [self.mArrQues objectAtIndex:indexPath.section];
}
else
{
if(indexPath.row == 0)
    {
    cell.textLabel.text = [self.mArrQues objectAtIndex:indexPath.section];
    }
else{
    cell.textLabel.text = [self.mArrAns objectAtIndex:indexPath.section];
    }
}

cell.selectionStyle = UITableViewCellSelectionStyleNone;
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;

return cell;
}

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
helpOn = !helpOn;

int ind = indexPath.section;
if(ind == selectedCellIndexPath)
{
}
else{
    helpOn = 1;
}
if(helpOn)
{
    selectedCellIndexPath = indexPath.section;
[self.mHelpTable reloadSections:[NSIndexSet indexSetWithIndex:indexPath.section] withRowAnimation:UITableViewRowAnimationFade];
}
else
{
    if(indexPath.row == 0)
    {
    //selectedCellIndexPath = indexPath.section;
    [self.mHelpTable reloadSections:[NSIndexSet indexSetWithIndex:indexPath.section] withRowAnimation:UITableViewRowAnimationFade];
    }
}
}

エラー ：

Invalid update: invalid number of rows in section 0. The number of rows contained in an existing section after the update (2) must be equal to the number of rows contained in that section before the update (1), plus or minus the number of rows inserted or deleted from that section (0 inserted, 0 deleted) and plus or minus the number of rows moved into or out of that section (0 moved in, 0 moved out).'

4

2 に答える 2

1

これをコードから削除します。 

else{
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
}

nilの場合、セルを割り当てる必要はありません.tableviewはこの行の前のセルから再利用します

cell = [self.mHelpTable dequeueReusableCellWithIdentifier:cellIdentifier];

と

.hで作る

int selectedCellIndexPath;
BOOL selected;

メートルで 

-(NSInteger) tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{    
    if (section==selectedCellIndexPath)
    {
        //selected > this is because initialy selectedCellIndexPath is 0 and section is also 0
        if (selected) {
        return 2;
        }
        else{
            return 1;
        }
    }
    else{
        return 1;
    }
    return 1;
}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *cellIdentifier = @"CellIdentifier";
    UITableViewCell *cell;
    cell = [self.mHelpTable dequeueReusableCellWithIdentifier:cellIdentifier];
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
    }

    UIView* myBackgroundView = [[UIView alloc] initWithFrame:CGRectZero];
    myBackgroundView.backgroundColor = [UIColor colorWithRed:240.0/255.0 green:240.0/255.0 blue:240.0/255.0 alpha:1.0];
    cell.backgroundView = myBackgroundView;
    //[cell addSubview:myBackgroundView];

    //if(!helpOn)
    if (indexPath.section!=selectedCellIndexPath)
    {
        cell.textLabel.text = [mArrQues objectAtIndex:indexPath.section];
    }
    else
    {
        if(indexPath.row == 0)
        {
            cell.textLabel.text = [mArrQues objectAtIndex:indexPath.section];
        }
        else{
            cell.textLabel.text = [mArrAns objectAtIndex:indexPath.section];
        }
    }

    //cell.textLabel.text = [self.mArrQues objectAtIndex:indexPath.section];
    cell.selectionStyle = UITableViewCellSelectionStyleNone;
    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;

    return cell;
}

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    selected= !selected;
    selectedCellIndexPath = indexPath.section;
    //selectedCellIndexPath = indexPath.row;
    [self.mHelpTable reloadSections:[NSIndexSet indexSetWithIndex:indexPath.section] withRowAnimation:UITableViewRowAnimationFade];

}
于 2013-07-31T13:50:00.370 に答える