iPhone and Application Settings - iphone

Question

I want to have a setting in an iphone app that uses a toggle switch to allow something to be turned on or off. I have seen tutorials, but they only show how to do this in the iPhone's settings place. I want this done inside the application. Any guides, help advice. I'm going for something similar to the picture below.

Answer 1

You can use the UISwitch as accessoryView. This will look (almost?) exactly like in your picture.
Something like this:
- (UITableViewCell *)tableView:(UITableView *)aTableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = #"CellIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (!cell) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
UISwitch *mySwitch = [[[UISwitch alloc] init] autorelease];
[mySwitch addTarget:self action:#selector(switchToggled:) forControlEvents:UIControlEventValueChanged];
cell.accessoryView = mySwitch;
}
// configure cell
UISwitch *mySwitch = (UISwitch *)cell.accessoryView;
mySwitch.on = YES; // or NO
cell.textLabel.text = #"Auto Connect";
return cell;
}
- (IBAction)switchToggled:(UISwitch *)sender {
UITableViewCell *cell = (UITableViewCell *)[sender superview];
NSIndexPath *indexPath = [self.tableView indexPathForCell:cell];
NSLog(#"Switch %i,%i toggled", indexPath.section, indexPath.row);
}

Answer 2

You can use a UISwitch. Here's the very simple class reference guide.
http://developer.apple.com/library/ios/#documentation/uikit/reference/UISwitch_Class/Reference/Reference.html
Basically you can check its state by checking its "on" property.
if(mySwitch.on) {
//do something here
}

Answer 3

First, make sure you're UITableView style is set to "Grouped"
Then, in your cellForRowAtIndexPath method, do something along these lines:
if (indexPath.section == kSwitchSection) {
if (!randomControl) {
randomControl = [ [ UISwitch alloc ] initWithFrame: CGRectMake(200, 10, 0, 0) ];
[randomControl addTarget:self action:#selector(switchAction:) forControlEvents:UIControlEventValueChanged];
randomLabel = [[UILabel alloc] initWithFrame:CGRectMake(20,8,180,30)];
[randomLabel setFont:[UIFont boldSystemFontOfSize:16]];
[randomLabel setText:#"My Label"];
}
cell.selectionStyle = UITableViewCellSelectionStyleNone;
[cell addSubview:randomControl];
[cell addSubview:randomLabel];
}
Remember to release the UISwitch object later and to include code for setting it to on or off depending on what state it should be in.