在目标视图控制器中获取segue的发送者 [英] get sender of segue in destination view controller

问题描述

我有一个名为Dashboard（D）的VC，它可以打开一个名为Login（L）的VC和一个名为Register（R）的VC。登录也可以打开VC Register。

I have a VC named Dashboard (D) which can open a VC named Login (L) and a VC named Register (R). Login can open VC Register too.

我尝试尽可能多地使用storyboard，所以我用它创建了三个Segues，D到L，D到R，L到R

I try to use storyboard as often as possible, so I have created with it three Segues, D to L, D to R, L to R

所以，在D - > L - > R的情况下，在D - > R的情况下，当我关闭R时，我必须关闭L，如果它必要时告诉D他可以开始加载用户信息（简言之，启动功能）。

So, in case of D -> L -> R and in case of D -> R, when I close R, I have to close L if it necessary and inform D which he can begin to load the user infos (launch function in nutshell).

所以，我想在目标vc中获取Segue的发送者，知道我把它放在performSegueWithIdentifier的发送者entry中：

So, I would like get the sender of Segue in destination vc, knowing that I put it in sender entrie of performSegueWithIdentifier like that :

[self performSegueWithIdentifier:@"SegueToFbRegister" sender:self];

推荐答案

我这样做是让R发送通知当注册/登录完成后，让D听它然后弹出所有内容并加载你的数据。

I'd do this by having R send a notification when the registration/login is done, and having D listen to it then pop everything and load your data.

如果你坚持要求发送者，你可以在目标VC上添加此属性并将其设置在源VC的 prepareForSegue：sender：

If however you insist on getting a reference to the sender, you can add this property on your destination VC and set it in the source VC's prepareForSegue:sender:

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