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Which method is used to programmatically navigate back to the previous screen in a navigation stack?

easy📝 Conceptual Q2 of 15
iOS Swift - Navigation
Which method is used to programmatically navigate back to the previous screen in a navigation stack?
ApopViewController(animated:)
BpushViewController(_:animated:)
Cpresent(_:animated:completion:)
Ddismiss(animated:completion:)
Step-by-Step Solution
Solution:

  1. Step 1: Identify method for going back

    The method popViewController(animated:) removes the top view controller, navigating back.

  2. Step 2: Differentiate from other methods

    pushViewController adds a new screen, present and dismiss manage modal views, not navigation stack.

  3. Final Answer:

    popViewController(animated:) -> Option A

  4. Quick Check:

    Navigate back = popViewController [OK]
Quick Trick: Pop removes top screen, push adds new screen [OK]
Common Mistakes:
  • Using pushViewController to go back
  • Confusing modal presentation with navigation
  • Using dismiss instead of pop

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