i dont know, why the button are disappear after the toolbar set to hide and unhide.
how can i fix it?

setup a button code

```
-(void)viewDidAppear:(BOOL)animated {
    //NSLog(@"viewDidAppear ");

    [self becomeFirstResponder];
    //Create a button
    UIBarButtonItem *back = [[UIBarButtonItem alloc] 
                        initWithBarButtonSystemItem:UIBarButtonSystemItemRewind 
                target:self action:@selector(goback:)];

    UIBarButtonItem *fixspace1 = [[UIBarButtonItem alloc] 
                                 initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace 
                                 target:self action:nil];

    UIBarButtonItem *next = [[UIBarButtonItem alloc] 
                             initWithBarButtonSystemItem:UIBarButtonSystemItemFastForward 
                             target:self action:@selector(gofwd:)];
    UIBarButtonItem *stop = [[UIBarButtonItem alloc] 
                             initWithBarButtonSystemItem:UIBarButtonSystemItemStop 
                             target:self action:@selector(stopload:)];

    UIBarButtonItem *refresh = [[UIBarButtonItem alloc] 
                             initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh 
                             target:self action:@selector(refreshWeb:)];

    [self.navigationController.toolbar setItems:[NSArray arrayWithObjects:fixspace1, back, fixspace1, stop, fixspace1, next, fixspace1, nil] animated:YES];
    [self.navigationItem setRightBarButtonItem:refresh animated:YES];

    [self.navigationController.view addSubview:self.navigationController.toolbar];

    [stop release];
    [next release];
    [back release];
    [refresh release];
    [fixspace1 release];
}

```

and i setup my button at this method

```
-(void)viewDidAppear:(BOOL)animated 

```

this code use for hide toolbar

```
    [self.navigationController setNavigationBarHidden:YES animated:YES];
    [[UIApplication sharedApplication] setStatusBarHidden:YES animated:YES];
    [self.navigationController setToolbarHidden:YES animated:YES];

```

![alt text](https://i708.photobucket.com/albums/ww82/RAGOpoR/IMG_0128.png)