Add buttons to UInavigationbar

navigationbuttons

     UIToolbar *tools = [[UIToolbar alloc]
                        initWithFrame:CGRectMake(0.0f, 0.0f, 90.0f, 45.01f)]; // 44.01 shifts it up 1px 
    tools.clearsContextBeforeDrawing = NO;
    tools.clipsToBounds = NO;
   
    tools.barStyle = -1; 
    NSMutableArray *buttons = [[NSMutableArray alloc] initWithCapacity:2];
    
    
    // ---------------------------------------Add Pin button----------------------------------.
    
    
    UIBarButtonItem *bi = [[UIBarButtonItem alloc] initWithTitle:@"Pin" style:UIBarButtonItemStylePlain target:self action:@selector(PinClicked)];
    bi.style = UIBarButtonItemStyleBordered;

    UIImage *img = [UIImage imageNamed:@"purple-circle32.png"];
    [bi setImage:img];
    //bi1.width = 45;
   

    [buttons addObject:bi];
    [bi release];
    
    // --------------------------------Add Hot Spot button----------------------------------.
    
bi = [[UIBarButtonItem alloc] initWithTitle:@"Hotspot" style:UIBarButtonItemStylePlain target:self action:nil];
    bi.style = UIBarButtonItemStyleBordered;
   // img = [UIImage imageNamed:@"purple-circle32.png"];
   // [bi setImage:img];
    [buttons addObject:bi];
    [bi release];
    
    // Add buttons to toolbar and toolbar to nav bar.
    [tools setItems:buttons animated:NO];
    [buttons release];
    UIBarButtonItem *twoButtons = [[UIBarButtonItem alloc] initWithCustomView:tools];
    [tools release];
    self.navigationItem.rightBarButtonItem = twoButtons;
    [twoButtons release];