UINavigationController导航栏.docx

UINavigationController 导航栏 _window =[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; RootViewController *root =[[RootViewController alloc] init]; //标题(中间位置) =@"首页"; //创建导航栏控制器 UINavigationController *navController =[[UINavigationController alloc] initWithRootViewController:root]; =navController; [_window makeKeyAndVisible]; leftButton =[[UIBarButtonItem alloc] initWithBarButtonSystemItem:pose target:self action:***@selector(selectLeft:)]; =leftButton; //左边的 button rightButton =[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:***@selector(selectRight:)]; =rightButton; //右边的 button AddViewController *add =[[AddViewCo