1119. Describe your approach to developing an automatic swipe feature in a social media app

Hard
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Description

Interviewer

Can you walk me through your process of designing a feature for an app that automatically swipes through photos horizontally every 10 seconds if the user is not interacting with it, and how you would handle real-time updates being pushed to the app, such as a friend's new post?

Skill Assessed
  • 1. Technical proficiency : Understanding of app development frameworks and best practices for implementing automatic features and real-time updates.

  • 2. Problem-solving skills : Ability to analyze requirements and concoct efficient solutions for feature implementation.

  • 3. Attention to detail : Capability to anticipate edge cases and ensure a high-quality user experience by managing timers and queue updates meticulously.

  • 4. Knowledge of real-time communication : Familiarity with different real-time communication methods such as websockets, polling, and push notifications.

Purpose
  • 1. Understanding of app development process : Assesses the candidate's grasp on the steps required to build and integrate app features effectively.

  • 2. Assessment of technical knowledge : Gauges the depth of the candidate’s understanding of real-time data and UI interactions in app development.

  • 3. Problem-solving approach : Evaluates how the candidate approaches a complex feature implementation and how they solve potential challenges.

  • 4. Cognition of user experience design : Determines the candidate's ability to create features that are not only technically sound but also provide a seamless and engaging user experience.


Hints
  • 1. Think through the user experience : Talk about how you would ensure that the automatic swiping is intuitive and doesn't disrupt the user’s browsing experience.

  • 2. Discuss potential challenges : Mention how you might handle synchronization issues or network latency for real-time updates.

  • 3. Consider scalability and efficiency : Reflect on the implications of the chosen real-time update method for app performance and server load.

Tags
Topics: 
Problem Solving
Technical Skills
Roles: 
IOS Engineer
Companies: 
Meta
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