在应用程序启动时,确定用户是否已经登录.
At the start of the app, determine whether or not the user is logged in already.
如果用户未登录:
- 将rootViewController设置为UINavigationController并添加您的
欢迎查看. (如果希望导航栏看起来像您发布的照片,则可以将其隐藏.)
- 当他们点击注册或登录按钮时,
将适当的视图控制器推到导航控制器上
堆栈.
- 成功登录后,用UITabBarController 替换根视图控制器.
- Set the rootViewController to a UINavigationController and add your
Welcome view to it. (You can hide the navigation bar if you want it to look like the photo that you posted.)
- When they tap the register or sign in buttons,
push the appropriate view controller onto the navigation controller
stack.
- After a successful login, replace the root view controller with the UITabBarController.
如果用户已登录:
将rootViewController设置为UITabBarController.
Set the rootViewController to the UITabBarController.