導航頁面的 toolBar 定製barbuttonItem

    

   [self.navigationController  setToolbarHidden:NO animated:YES];

//    UIBarButtonItem *one = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:nil action:nil];

    UIBarButtonItem *one = [[UIBarButtonItem alloc] initWithTitle:@"通過" style:UIBarButtonItemStyleBordered target:self action:nil];

//    UIBarButtonItem *two = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemBookmarks target:nil action:nil];

    UIBarButtonItem *two = [[UIBarButtonItem alloc] initWithTitle:@"否決" style:UIBarButtonItemStyleBordered target:self action:nil];

    UIBarButtonItem *three = [[UIBarButtonItem alloc] initWithTitle:@"取消" style:UIBarButtonItemStyleBordered target:self action:@selector(hello)];

//    UIBarButtonItem *three = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:nil action:nil];

//    UIBarButtonItem *four = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemEdit target:nil action:nil];

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

    

    [self setToolbarItems:[NSArray arrayWithObjects:flexItem, one, flexItem, two, flexItem, three, flexItem, nil]];