Tavant Technologies Senior IOS Developer Interview Questions, Process, and Tips

A protocol extension allows adding functionality to existing types without modifying their original implementation.

• Define a protocol with required methods

• Create an extension for the protocol

• Implement the methods in the extension

To fix a crash in an application, identify the root cause, analyze crash logs, use debugging tools, and test the fix thoroughly.

• Identify the root cause of the crash by analyzing crash logs and user reports.

• Use debugging tools like Xcode's debugger or third-party tools like Crashlytics.

• Implement defensive coding practices to handle edge cases and prevent crashes.

• Test the fix thoroughly on different devices and iOS versi...read more

Adopting new iOS versions involves staying updated, testing compatibility, updating codebase, and utilizing new features.

• Stay updated on new iOS versions and features released by Apple.

• Test compatibility of existing apps with the new iOS version.

• Update the codebase to ensure compatibility and take advantage of new features.

• Utilize new features introduced in the latest iOS version to enhance app functionality.

• Consider r...read more

Button hierarchy in Objective-C refers to the order in which buttons are arranged and displayed on the user interface.

• Button hierarchy determines the visual layout and organization of buttons on a screen.

• Buttons can be arranged in a linear or hierarchical manner.

• The hierarchy can be defined using constraints or by using a layout manager.

• Example: A login screen may have a primary button at the bottom and secondary butto