dequeueReusableCellWithIdentifier behavior changed for prototype cells?

问题

In iOS5, using ARC and prototype cells for tableView on storyboard, can I replace the code below:

static NSString *CellIdentifier = @"Cell";

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

// Configure the cell...
return cell;

With this simple code??:

UITableViewCell *cell = [tableView 
  dequeueReusableCellWithIdentifier:@"Cell"];
return cell;

I saw this on this link:

http://www.raywenderlich.com/5138/beginning-storyboards-in-ios-5-part-1

Thank's in advance!

Arildo

回答1:

Sure, your code are right, storyboard automaticaly alloc new cells, this code work great:

 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{   
    RoadbookCell *cell = (RoadbookCell *)[tableView dequeueReusableCellWithIdentifier:@"RoadbookCell"];

    //Configure cell
    //[cell.lab1 setText:@"Test"];

    return cell;
}

回答2:

This is the way Apple intends it to be used, but I recommend against it. There is a bug that causes dequeueReusableCellWithIdentifier to return nil when VoiceAssist is enabled on a device. That means your app will crash for users with this option turned on. This is still a problem as of iOS 5.1.1

You can find more info and a workaround here:

http://hsoienterprises.com/2012/02/05/uitableview-dequeuereusablecellwithidentifier-storyboard-and-voiceover-doesnt-work/

The last paragraph has the work-around

来源：https://stackoverflow.com/questions/7946840/dequeuereusablecellwithidentifier-behavior-changed-for-prototype-cells

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iphone