ios: different segue to another view depending on the segue used in the previous view
Apologies, if this is a little unclear - I'm a noob when it comes to iOS programming. Here's the scenario:
I've got a LogInView, a CategoryView, a CheckerView, a WalkthroughView, and a LandingPageView.
The user starts at LogInView, and depending on the app's bluetooth state, and whether or not the user has been registered, either goes to:
- CheckerView (Registered, Bluetooth Off)
- LandingPageView (Registered, Bluetooth On)
- CategoryView (Unregistered)
If the user hits CategoryView, depending on the state of his bluetooth connection, he goes to either (this part, so far, works okay):
- WalkthroughView (Bluetooth on)
- CheckerView (Bluetooth off)
The catch is that CategoryView will always go through WalkthroughView, regardless of whether or not bluetooth is on. So, here's what my storyboard looks like:
A right hot mess, I know. Since both LogInView and CategoryView can, at some point, go into CheckerView, I need a way to check which of the segues was used, such that:
- CheckerView will always go into LandingView if the previous view was LogInView, and
- It will always go into WalkthroughView if the previous view was CategoryView.
I'm vaguely aware of a prepareForSegue function, but I've no idea yet how to use it, nor where to put it (from the previous page, or on the receiving page?)
Any suggestions? Thanks.
It sounds like you're testing conditions to determine where you'll segue. If that's the case, perhaps you could test conditions (registered/unregistered, Bluetooth enabled/disabled). Based on the various conditions, you could use performSegueWithIdentifier to determine where to go next and set up the next ViewController in prepareForSegue using the a segue identifier, rather than "looking back" to see where you came from.