How to create space between buttons? - iphone

Question

I am already creating multiple buttons but I don't know how to align the buttons.
My code is here:
- (void)viewDidLoad
{
//self.title=#"Asset Management";
[super viewDidLoad];
listOfItems = [[NSMutableArray alloc] init];
[listOfItems addObject:#"User Information"];
[listOfItems addObject:#"Regional Settings"];
[listOfItems addObject:#"Configuration"];
toolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 20, 320, 44)];
//UIToolbar* toolbar = [[UIToolbar alloc] initWithFrame:CGs
toolbar.tintColor = [UIColor clearColor];
[toolbar setTranslucent:YES];
// create the array to hold the buttons, which then gets added to the toolbar
NSMutableArray* buttons = [[NSMutableArray alloc] initWithCapacity:3];
// Create button1
UIBarButtonItem *propertiesButton = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemSearch target:self action:#selector(button1Pressed)];
[buttons addObject:propertiesButton];
[propertiesButton release];
// Create button2
UIBarButtonItem *commentaryButton = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemCompose target:self action:#selector(button2Pressed)];
[buttons addObject:commentaryButton];
[commentaryButton release];
// Create button3
UIBarButtonItem *versionsButton = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:#selector(button3Pressed)];
[buttons addObject:versionsButton];
[versionsButton release];
// stick the buttons in the toolbar
[toolbar setItems:buttons animated:NO];
//self.toolbarItems = buttons;
[buttons release];
// and put the toolbar in the nav bar
[[self navigationItem] setRightBarButtonItem:[[[UIBarButtonItem alloc] initWithCustomView:toolbar] autorelease]];
[toolbar release];
}
How do I create space b/w the buttons. Pls help me.
Thanks in advance!

Answer 1

You can add spaces between tool bar items using either of the two built-in space button types
UIBarButtonSystemItemFixedSpace and UIBarButtonSystemItemFlexibleSpace.
Fixed Space button
UIBarButtonItem *fixedSpace = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace
target:nil
action:nil];
[fixedSpace setWidth:20];
Flexible Space button
UIBarButtonItem *flexibleSpace = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace
target:nil
action:nil];
Add the space bar buttons in between the other tool bar items.