UITableView tap to deselect cell

Question

I have a UITableViewCell that is selected when tapped. During this selected state, if the user taps the cell again, I want the cell to deselect.

I can\

Answer 1

in Swift 4:

func tableView(_ tableView: UITableView, willSelectRowAt indexPath: IndexPath) -> IndexPath? {

    if let indexPathForSelectedRow = tableView.indexPathForSelectedRow,
        indexPathForSelectedRow == indexPath {
        tableView.deselectRow(at: indexPath, animated: false)
        return nil
    }
    return indexPath
}

Answer 2

You can actually do this using the delegate method willSelectRowAtIndexPath:

- (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
    if ([cell isSelected]) {
        // Deselect manually.
        [tableView.delegate tableView:tableView willDeselectRowAtIndexPath:indexPath];
        [tableView deselectRowAtIndexPath:indexPath animated:YES];
        [tableView.delegate tableView:tableView didDeselectRowAtIndexPath:indexPath];

        return nil;
    }

    return indexPath;
}

Note that deselectRowAtIndexPath: won't call the delegate methods automatically, so you need to make those calls manually.

Answer 3

Leave the single selection mode on, but override the following funcs like this:

override func tableView(_ tableView: UITableView, willSelectRowAt indexPath: IndexPath) -> IndexPath? {
    if tableView.indexPathsForSelectedRows?.contains(indexPath) ?? false {
       tableView.deselectRow(at: indexPath, animated: true)
       return nil
    }

    return indexPath
}

override func tableView(_ tableView: UITableView, willDeselectRowAt indexPath: IndexPath) -> IndexPath? {
    return nil
}

Answer 4

- (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
    if ([cell isSelected]) {
        // Deselect manually.
        if ([tableView.delegate respondsToSelector:@selector(tableView:willDeselectRowAtIndexPath:)]) {
            [tableView.delegate tableView:tableView willDeselectRowAtIndexPath:indexPath];
        }
        [tableView deselectRowAtIndexPath:indexPath animated:YES];
        if ([tableView.delegate respondsToSelector:@selector(tableView:didDeselectRowAtIndexPath:)]) {
            [tableView.delegate tableView:tableView didDeselectRowAtIndexPath:indexPath];
        }
        return nil;
    }

    return indexPath;
}

Answer 5

When you select a cell this delegate method is triggered.

- (void) tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{


        UITableViewCell *theUITableViewCell = [tableView cellForRowAtIndexPath:path];
        if (theUITableViewCell.selected == YES){
            self.tableView deselectRowAtIndexPath:<#(NSIndexPath *)#> animated:<#(BOOL)#>
            // Do more thing
        }else{
            // By default, it is highlighted for selected state
        }

 }

It's pseudo code.

Answer 6

You can try this one, it's works for me (for single selection or multiple selections):

A. allocate a private NSMutableArray in viewDidLoad like:

@interface XXXViewController : UIViewController <UITableViewDataSource, UITableViewDelegate>
{
    NSMutableArray * selectedZoneCellIndexPaths;
}


- (void)viewDidLoad
{
    selectedZoneCellIndexPaths = [[NSMutableArray alloc] init];
}

B. in UITableViewDelegate didSelectRow add following lines

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{

     for (NSIndexPath * iter in selectedZoneCellIndexPaths)
     {
         if (indexPath.section == iter.section && indexPath.row == iter.row)
         {
             [tableView deselectRowAtIndexPath:indexPath animated:YES];
             [selectedZoneCellIndexPaths removeObject:iter];
             return;
         }
     }
     [selectedZoneCellIndexPaths addObject:indexPath];
     return;
}