NSTextField dynimic height in NSTableView

Question

There is a NSTextField in a NSTableView.

The height of the text in the window resizing is increased. but Not grow the cells in a table view.

In this case, the height of table view cell to alter how do you like?

in short, When resizing the size of the text view, I want to change the size of the cell.

like this: (Mac store) enter image description here

- (CGFloat)tableView:(NSTableView *)tableView heightOfRow:(NSInteger)row;
{
    KFCustomCellView *cellView = [tableView makeViewWithIdentifier:@"MainCell" owner:self];

    NSString *comment = [[_commentList objectAtIndex:row]valueForKey:@"COMMENT"];

    [cellView.comment setStringValue:comment];

    float cellheight = [comment heightForStringDrawing:comment font:[cellView.comment font] width:self.view.frame.size.width * 0.8];

    if (cellheight > cellView.comment.frame.size.height)
    {
        return (cellheight + 65);
    }

    return  90;
}

Divya Bhaloidiya Divya Bhaloidiya · Accepted Answer · 2014-04-14T09:34:37

Use following approach the to resize cell height according to textview content :

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{
    static NSString *DataCellId = @"DataCell";
    dataCell = (Cell *)[tableView dequeueReusableCellWithIdentifier:DataCellId];
    if(!dataCell)
    {
        dataCell = [[[Cell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:DataCellId] autorelease];
    }

    dataCell.dataCellTextView.tag = indexPath.row;
    dataCell.dataCellTextView.text =[yourDataArry objectAtIndex:indexPath.row];
return dataCell;
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    #define PaddingForTableRowHeight 24

    NSString *text;
    if([yourDataArry count] > indexPath.row)
    {
        text = [yourDataArry objectAtIndex:indexPath.row];
    } else {
        text = @"";
    }

     UIFont *dataFont = [UIFont boldSystemFontOfSize:16.0f];

     CGSize textSize ;

     if([UICommonUtils checkIfiOS7])
        {
        // For iOS7
            textSize = [text boundingRectWithSize:CGSizeMake("YOUR CELL WIDTH", MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName:dataFont} context:nil].size;
        } else {
            textSize = [text sizeWithFont:dataFont constrainedToSize:CGSizeMake("YOUR CELL WIDTH" - PaddingForTableRowHeight,MAXFLOAT)];
        }


     float textViewHeight =  MAX(kDefaultCellHeight, textSize.height+PaddingForTableRowHeight);

  return textViewHeight;
}


-(void)textViewDidBeginEditing:(UITextView *)textView
{
  [self scrollToCursorForTextView:textView];
}

-(void)textViewDidEndEditing:(UITextView *)textView
{
    if([yourDataArry count] > textView.tag)
    {
        [yourDataArry replaceObjectAtIndex:textView.tag withObject:textView.text];
    }
}

- (void)textViewDidChange:(UITextView *)textView
{
    dataUpdated =YES;
    if([yourDataArry count] > textView.tag)
    {
        [yourDataArry replaceObjectAtIndex:textView.tag withObject:textView.text];
    }
    [self performSelector:@selector(dataReload) withObject:nil afterDelay:0.0];
    [self scrollToCursorForTextView:textView];
}

-(void)dataReload
{
    [self.tbl beginUpdates];
    [self.tbl endUpdates];
}

NSTextField dynimic height in NSTableView

2 Answers