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183 lead android engineer interview questions shared by candidates

ArrayList, Linked List what happens internally? Loaders, MVVM, count number of objects for a particular class. count number of repeated elements in an array using single loop let, apply in kotlin lamda expressions in java, why they introduced these
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Android Lead

Interviewed at People Tech Group

2.6★
14 Sept 2019

ArrayList, Linked List what happens internally? Loaders, MVVM, count number of objects for a particular class. count number of repeated elements in an array using single loop let, apply in kotlin lamda expressions in java, why they introduced these

You're in a house that has two rooms, and there's no way to see from one room to the other. One room has three light switches, and the other room has three corresponding light bulbs. You don't know which switch triggers which bulb and can only make a single trip between the two rooms. How do you find out?
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Senior Android Developer and Team Lead

Interviewed at Softxpert

3.8★
17 Oct 2024

You're in a house that has two rooms, and there's no way to see from one room to the other. One room has three light switches, and the other room has three corresponding light bulbs. You don't know which switch triggers which bulb and can only make a single trip between the two rooms. How do you find out?

Working with Android layouts, asynchronous communication, java libraries, REST API client architecture. One logical task: you have an array of 99 distinct integers, each one can have a value between 1 and 100 inclusively. But no duplicates in an array. Array is not sorted. Find out which value is missing in the array.
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Android Team Lead

Interviewed at Ciklum

3.9★
5 Sept 2015

Working with Android layouts, asynchronous communication, java libraries, REST API client architecture. One logical task: you have an array of 99 distinct integers, each one can have a value between 1 and 100 inclusively. But no duplicates in an array. Array is not sorted. Find out which value is missing in the array.

1) Move all the element less than a given number to right side and greater than given number to left side. Number can or can not be part of Array 2) There are three unsorted(confirmed twice from him) array of size x, y, z. I had to form a third array whose size will be (n + m + l) and put all the elements in sorted order. 3) Check if given Parentheses are balanced or not.
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Android Lead

Interviewed at Bounce

3.7★
15 Aug 2019

1) Move all the element less than a given number to right side and greater than given number to left side. Number can or can not be part of Array 2) There are three unsorted(confirmed twice from him) array of size x, y, z. I had to form a third array whose size will be (n + m + l) and put all the elements in sorted order. 3) Check if given Parentheses are balanced or not.

DS and algorithms - 1. Array problems 2. Order of complexity discussion Android and Oops - 1. Architecture choices 2. Handling multiple API calls on home screen 3. Rxjava 4. Dependency injection 5. SOLID principles HR round - 1. Why Airfi ? 2. Experience with the past companies 3. Future goals and aspirations
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Tech Lead- Android Applications Developer

Interviewed at AirFi

4.2★
19 Aug 2021

DS and algorithms - 1. Array problems 2. Order of complexity discussion Android and Oops - 1. Architecture choices 2. Handling multiple API calls on home screen 3. Rxjava 4. Dependency injection 5. SOLID principles HR round - 1. Why Airfi ? 2. Experience with the past companies 3. Future goals and aspirations

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