I'm guessing you need to call [self setNeedsDisplay] in the implementation of
-[MyCustomView setObject:]
Luke
On Apr 16, 2013, at 11:25 AM, Koen van der Drift <koenvanderdr...@gmail.com>
wrote:
>
> On Apr 15, 2013, at 7:20 AM, Koen van der Drift <koenvanderdr...@gmail.com>
> wrote:
>
>> The reason I was using drawRect is that my cell contains some text, plus a
>> small graph (a few changing lines, so I cannot use an static image) at the
>> bottom. Therefore I was using CoreGraphics, and I decided then to also draw
>> the strings that way.
>>
>> Even if I use labels for the strings (which I agree is much easier and
>> customizable), then I still would need a subview for the bottom half of my
>> contentView to draw in the graph. Unless there is another solution?
>
> I'm having some troubles with the custom view to draw my graph in.
>
> I created a xib for my cell with a bunch of labels and a UIView, as well as a
> UIView subclass (MyCustomView), where in the drawRect method I draw the
> graph. The UIView in the xib is set to the Class MYCustomView.
>
> In the UITableViewController I added the following to set up the cell:
>
> - (UITableViewCell *)tableView:(UITableView *)tableView
> cellForRowAtIndexPath:(NSIndexPath *)indexPath
> {
> MyCustomCell *cell = [tableView dequeueReusableCellWithIdentifier:
> @"MyCell"];
>
> if (!cell)
> {
> cell = [[MyCustomCell alloc] initWithStyle:
> UITableViewCellStyleDefault reuseIdentifier: @"MyCell"];
> cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
> }
>
> MyObject *o = [self.myArray objectAtIndex: [indexPath row]];
>
> cell.labelOne.text = o.name;
> cell.labelTwo.text = o.info;
>
> cell.myCustomView.object = o;
>
> return cell;
> }
>
> And then in drawRect of MyCustomView I extract the info from the object to
> setup the draw parameters and draw my graph.
>
> Now the first few cells are drawn ok, but after that, I see the graph based
> on the info from an object that has already been drawn. If I put in an NSLog
> in drawRect, I indeed see that this is called only a few times, and after
> that not anymore. But labelOne and labelTwo are fine for all cells and
> called all the time.
>
>
> Why is drawRect only called for the first couple of cells, and after that not
> anymore?
>
>
> Thanks,
>
> - Koen.
>
>
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