带有UISegmentedControl的iPhone自定义单元

Question

I have created a custom cell with a UISegmentedControl on it and loaded the cell like,

static NSString *CellIdentifier = @"Cell";

SegmentedCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

if (cell == nil) 
{
    NSArray *cells =[[NSBundle mainBundle] loadNibNamed:@"SegmentedCell" owner:nil options:nil];

    for (UIView *view in cells) 
    {
        if([view isKindOfClass:[UITableViewCell class]])
        {
            cell = (SegmentedCell *)view;
            [cell.SegmentedControl addTarget:self
                                                  action:@selector(segmentedControlChanged:)
                                        forControlEvents:UIControlEventValueChanged];        


        }
    }
}

cell.textLabel.text = @"Sample";
cell.selectionStyle = UITableViewCellSelectionStyleNone;

The custom cell successfully loaded and I get the action of the SegmentedControl. But when I scroll the table view, state of the SegmentedControl is changed.

Answer 1

When you scroll a tableview that uses dequeueReusableCellWithIdentifier, you aren't actually saving all the different cells. To fix your problem you need to implement a few things.

• Set your segmented control up to store its value to a variable every time it is pressed.
• Put this value into an array
• In the cellForRowAtIndexPath method, get the variable out of the array and set the segmented control's value to this value of the variable.