Question

I have a UItableView where every UITableViewCell is containing a UISwitch .Now my question is when i will click in one switch then how can i OFF other switches of the UITableViewCell

In my code i have already made the view and i can ON/OFF the switches.But i want to OFF all other switches except my selected switch.

Please some help me by giving an example or source code example.

With Best Regards

Edit

My Code:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{

    static NSString *CellIdentifier = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
        switchview = [[UISwitch alloc] initWithFrame:CGRectZero];
        cell.accessoryView = switchview;
        switchCondition = NO;
        [switchview setOn:NO animated:YES];
        [switchview addTarget:self action:@selector(updateSwitchAtIndexPath:) forControlEvents:UIControlEventValueChanged];
        [switchview release];
    }
    if(switchCondition == YES){
    [switchview setOn:YES animated:YES];
    }

    cell.selectionStyle = UITableViewCellSelectionStyleNone;
    cell.contentView.backgroundColor = [UIColor clearColor];
    cell.textLabel.text = [NSString stringWithFormat:@"%@",[cellValueArray objectAtIndex:indexPath.row]];
    return cell;
}

- (void)updateSwitchAtIndexPath:(UISwitch*)sender {
    if(sender.on){
        switchCondition = YES;
        [table reloadData];
    }
}

Answer 1

Update your data model used by the table’s data source, then reload the table (or at least the visible rows). This will cause each row to reload and each switch will get updated with the latest data.

Edit: Here’s an updated version of your code:

You need an instance variable to track the state of each switch. Create an array to hold the YES and NO values. In the code below I will assume there is an instance variable named switchConditions of type NSMutableArray that has been setup with NSNumber objects representing the YES and NO values for each row. This is similar to your cellValueArray. You should also get rid of your switchView and switchCondition instance variables.

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    static NSString *CellIdentifier = @"Cell";

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

        UISwitchView *switch = [[UISwitch alloc] initWithFrame:CGRectZero];
        cell.accessoryView = switch;
        [switchview addTarget:self action:@selector(updateSwitchAtIndexPath:) forControlEvents:UIControlEventValueChanged];
        [switch release];
    }

    UISwitchView *switch = (UISwitchView *)cell.accessoryView;
    switch.tag = indexPath.row; // This only works if you can't insert or delete rows without a call to reloadData
    BOOL switchState = [switchConditions[indexPath.row] boolValue];
    switch.on = switchState; // this shouldn't be animated

    cell.contentView.backgroundColor = [UIColor clearColor];
    cell.textLabel.text = cellValueArray[indexPath.row];

    return cell;
}

- (void)updateSwitchAtIndexPath:(UISwitch*)switch {
    NSInteger row = switch.tag;
    if (switch.on){
        // This switch is on, turn all of the rest off
        for (NSUInteger i = 0; i < switchConditions.count; i++) {
            switchConditions[i] = @NO;
        }
        switchConditions[row] = @YES;
        [self.tableView reloadData];
    } else {
        switchConditions[row] = @YES;
    }
}