Slice IOS Developer Interview Questions and Answers

Prepare from basics of Swift

UI task to check your design Level

Problem solving question wlll be given

Lld and HLD was discussed pls be prepared

Basic question based on MVVM Architecture

Android discussion, Services, MVVM, Coroutines

Q1. Discussion on Projects
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Q1. About the current company.
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Q2. Current and Expected CTC
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Q3. Total Years of Experience
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Q4. Relevant skills based on the JD
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He really helped me by telling me the topics and a few questions which the assigned interviewer usually asks.

The interview first ask me to open LEETCODE and gave me a HARD question about STACK - related to bracket question.

He first asked me to write the Pseudo code but I started writing proper code. After a period of time, I got stuck and he gave me a small hint I solved the question then he ask me to submit the code and it submitted successfully. This one question took 40 minutes. He didn't even ask me more questions, also he was yawning and it seemed like he was not interested at all. At the end of the interview, I asked him if he will ask more questions, and he said it is fine it was a hard and lengthy question.

The next day I got the rejection mail.

Android Assignment - Create an android project for a given scenario.

Q1. Questions related to Android & Kotlin
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Round duration - 180 Minutes
Round difficulty - Medium

Q1. System Design Question
Make a simple waster app. Given a mock server and some icons
Ans. 
Tip 1 : Use retrofit
Tip 2 : follow best practices
Tip 3 : make good layouts/UI
Answered by CodingNinjas
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Round duration - 45 minutes
Round difficulty - Medium

Basic DSA - Live coding
Happened on Sunday morning for 45 min. The interviewer is friendly.

Q1. Majority element
You have been given an array/list 'ARR' consisting of 'N' integers. Your task is to find the majority element in the array. If there is no majority element present, print -...read more
Ans. Brute Force Approach
The basic idea is to traverse the array and count the frequency of each element. 
 
We will run two nested loops till ‘N’ and store the count of each array element in ‘maxCount’. If for any element, ‘maxCount' becomes greater than ‘N’ / 2, we will return that element as the majority element. 
 
If no majority element is found, we will return -1.
Space Complexity: O(1)Explanation:
O(1)
...read more
Answered by CodingNinjas
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Q2. Row Of A Matrix With Maximum Ones
You are given a 2D matrix (containing either ‘0’ or ‘1’) of size N x M, where each row is in sorted order. Find the 0-based index of the first row that has the maximum num...read more
Ans. Brute Force
Our intuition is to traverse the given matrix row by row, and keep on counting the number of ‘1’s in each row and compare the count with max. And finally, return the index of the row with the maximum ‘1’s. This is a brute force kind of approach.
 
Just remember one thing while considering two rows have the same number of 1’s then we need to return the row with a lower index.
Space Complexity: O(1)Explanati...read more
Answered by CodingNinjas
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Round duration - 45 Minutes
Round difficulty - Medium

Technical - Android Round

Q1. Technical Questions
1) Services
2) Running multiple processes parallelly in Intentservice
3) HashMap vs HashSet
4) pending intent vs Sticky Intent
5) Where are abstract classes used in android
6) difference betw...read more
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Round duration - 90 Minutes
Round difficulty - Medium

Taken by Engineering Head

Q1. Technical Questions
1) What do you like about android?
2) What do you like other than android?
3) How do you keep update with new updates in android
4) Discussion on projects
5) Any changes would you like to do...read more
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Round duration - 15 Minutes
Round difficulty - Medium

Taken by VP

Q1. Technical Questions
Intro and projects background
HTTP Response codes
What is an API?
How/when do you use Retry functionality
Why do I want to switch?
When given a new project what would you do? To understand an...read more
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Q1. 1. OOPS Concepts in detail. 2. Ask question about android like android components Activity, services ,content providers and broadcast receiver. 3. Give some scenario to explain activity lifecycle and frag...read more
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Q1. 1. Salary Expectation 2. Discuss about joining date.
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