UITableView Checkmark ONLY ONE Row at a Time

Question

You'd think this would be easy. With this code, I can check multiple rows in a table but what I WANT is to only have one row checked at a time. If a user selects a different row, then I want the old row to simply AUTOMATICALLY uncheck. Don't know how to do that. Here's my code:

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

[tableView deselectRowAtIndexPath:indexPath animated:YES];


UITableViewCell *theCell = [tableView cellForRowAtIndexPath:indexPath];

if (theCell.accessoryType == UITableViewCellAccessoryNone) {
    theCell.accessoryType = UITableViewCellAccessoryCheckmark;
    }

    else if (theCell.accessoryType == UITableViewCellAccessoryCheckmark) {
    theCell.accessoryType = UITableViewCellAccessoryNone;
    }
}

Thanks for any help you can lend!

Answer 1

Try this:

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
    if indexPath.section == 1 {
        // un-select the older row
        if let selected = self.LastSelected {
            tableView.cellForRowAtIndexPath(selected)?.accessoryType = .None
        }

        // select the new row
        tableView.cellForRowAtIndexPath(indexPath)?.accessoryType = UITableViewCellAccessoryType.Checkmark
        self.LastSelected = indexPath
    }
}

Answer 2

Simplest way is to save the selected IndexPath and check it in cellForRowAtIndexPath.

attached is the code:

step 1: initialize selectedIndexPath selectedIndexPath = [[NSIndexPath alloc] init];

step 2: in cellForRowAtIndexPath

if([selectedIndexPath isEqual:indexPath]){
    [checkMark setHidden:NO];
} else {
    [checkMark setHidden:YES];
}

step 3 : In didSelectRowAtIndexPath

selectedIndexPath = indexPath;
[tableView reloadData];

It should work work try this Njoy :)

Answer 3

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath   *)indexPath
{
     [tableView cellForRowAtIndexPath:indexPath].accessoryType = UITableViewCellAccessoryCheckmark;
}

-(void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath 
{
    [tableView cellForRowAtIndexPath:indexPath].accessoryType = UITableViewCellAccessoryNone;
}

Swift version would be:

override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
    tableView.cellForRowAtIndexPath(indexPath)?.accessoryType = .Checkmark
}

override func tableView(tableView: UITableView, didDeselectRowAtIndexPath indexPath: NSIndexPath) {
    tableView.cellForRowAtIndexPath(indexPath)?.accessoryType = .None
}

Swift 3 update:

override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    tableView.cellForRow(at: indexPath)?.accessoryType = .checkmark
}

override func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
    tableView.cellForRow(at: indexPath)?.accessoryType = .none
}

Answer 4

In Swift 2.0 I used this:

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {

    if((lastSelectedIndexPath) != nil) {
        let lastCell = tableView.cellForRowAtIndexPath(lastSelectedIndexPath)
        lastCell?.accessoryType = UITableViewCellAccessoryType.None
    }

    let currentCell = tableView.cellForRowAtIndexPath(indexPath)
    currentCell?.accessoryType = UITableViewCellAccessoryType.Checkmark

    lastSelectedIndexPath = indexPath

}

Answer 5

Swift iOS

     var checkedIndexPath : NSIndexPath?

     // table row which row was selected
    func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath!) {
        tableView.deselectRowAtIndexPath(indexPath, animated: true)

        println("Section #\(indexPath.section)! You selected cell #\(indexPath.row)!")

        if (self.checkedIndexPath != nil) {
            var cell = tableView.cellForRowAtIndexPath(self.checkedIndexPath!)
            cell?.accessoryType = .None
        }

        var cell = tableView.cellForRowAtIndexPath(indexPath)
        cell?.accessoryType = .Checkmark

        self.checkedIndexPath = indexPath

    }// end tableView

Answer 6

My way is deselect other cells during selecting:

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = ....

    if condition {
        cell.accessoryType = .checkmark
        tableView.selectRow(at: indexPath, animated: false, scrollPosition: UITableViewScrollPosition.bottom)
    } else {
        cell.accessoryType = .none
    }

    return cell
}

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    for row in 0...tableView.numberOfRows(inSection: 0) {
        if row == indexPath.row {continue}
        tableView.deselectRow(at: IndexPath(row: row, section: 0), animated: true)
    }

    if let cell = tableView.cellForRow(at: indexPath) {
        cell.accessoryType = .checkmark
    }
}

func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
    let cell = tableView.cellForRow(at: indexPath)
    cell?.accessoryType = .none
}