UIButton *videoButton=[[UIButton alloc] initWithFrame:CGRectMake(50, 2, 50, 40)];

    videoButton.backgroundColor=[UIColor redColor];

    UIBarButtonItem *barButton=[[UIBarButtonItem alloc] initWithCustomView:videoButton];

    //self.navigationItem.rightBarButtonItem=barButton;
    UIButton *aboutButton=[[UIButton alloc] initWithFrame:CGRectMake(50, 2, 50, 40)];

    aboutButton.backgroundColor=[UIColor greenColor];

    UIBarButtonItem *barButton1=[[UIBarButtonItem alloc] initWithCustomView:aboutButton];



    NSArray *buttons=[[NSArray alloc] initWithObjects:barButton,barButton1, nil];


    self.navigationItem.rightBarButtonItems=buttons;