关于UIViewController添加UINavigationBar的详细实现方法

- (void)setNavigationbar

{

    CGRect screenRect = [[UIScreen mainScreen] bounds];

    UINavigationBar *navigationBar = [[UINavigationBar alloc]initWithFrame:CGRectMake(0, 0, screenRect.size.width, 44)];

    nav.tintColor = COLOR(200, 100, 162);;

    //创建UINavigationItem

    UINavigationItem * navigationBarTitle = [[UINavigationItemalloc] initWithTitle:@"创建UINavigationBar"];

    [nav pushNavigationItem: navigationBarTitle animated:YES];

    [self.view addSubview: navigationBar];

    //创建UIBarButton 可根据需要选择适合自己的样式

    UIBarButtonItem *item = [[UIBarButtonItemalloc]initWithBarButtonSystemItem:UIBarButtonSystemItemReply target:self action:@selector(navigationBackButton:)];

    //设置barbutton

    navigationBarTitle.leftBarButtonItem = item;

    [navigationBar setItems:[NSArray arrayWithObject: navigationBarTitle]];

  

}