UITableView Checkmark Selecting One At A Time

I have a UITableView, and when a cell is pressed, a checkmark is displayed in the accessory view. However I want to only be able 开发者_Go百科to have one checkmark displayed at any given time. How could I do that?

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Depends on how you are comparing your data. This is how I use checkmarks for my tableView:

if([[plistDict objectForKey:@"Warranty"] boolValue] == YES) {
    cell.accessoryType = UITableViewCellAccessoryCheckmark;
} else {
    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}

You can also compare text:

if([cell.textLabel.text isEqualToString:@"Some Text"]) {
    cell.accessoryType = UITableViewCellAccessoryCheckmark;
} else {
    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
}