How to transfer data from the third screen to the first?

Question

iOS

There are three screens, the first has a transition to the second, the second to the third. The first screen has a Label, and the third has a Text Field. How to transfer data from the third screen to the first without breaking the transition logic?

Answer 1

1 forward the delegate from the first screen to the third one
2 using a static variable
3 use NSNotificationCenter
4 use third party eventBus solutions