Login viewcontroller best practice

Question

Hi,

I am coding with Swift, ios 9.

I have an app that when a button is clicked to go to viewcontroller X, I must force the user to login, if he has not already done so.

In storyboard, I already have a segue from the button to viewcontroller X.

But, before allowing the user to go to viewcontroller X, I must first programmatically inject the login viewcontroller so that he can log in.

Then, once the user is logged in, I must then segue to viewcontroller X, which is where he wanted to go initially.

The above scenario is what I believe needs to be done.

Are there any samples and/or best practices on how such functionality should be implemented.

I will need this type of functionality whenever a user is trying to access a viewcontroller to which he must first be logged in.

Thanks

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Posted by

user304641

Reply

Answer 1

I'd have the target view controller check whether or not you're authenticated in viewDidAppear and if not, then modally present the login window.

Posted by

Gargoyle

Answer 2

Thanks.

If the user cancels from the Login ViewController, I try to unwind to the original ViewController, bypassing ViewController X.

An error is given "Unbalanced calls to begin/end appearance transitions for ViewController X".

This seems to occur because the appearance of ViewController X may not have fully completed and it was skipped durin the unwind.

Thoughts?

Posted by

user304641

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