Android Interview Questions

10,452 android interview questions shared by candidates

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

4
Sep 5, 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.

Android: (first 5 mins) => 5,6 questions (Answered all of them, interviewer was happy) (Performance : 9/10) Couple of basic Android fundamental questions that I dont remember How would you update few items that have been changed on the recyclerview? Why so? What is ANR? What is the most common way to getting rid of it? What are some diff ways to do bacground processing? why is it needed? What is a backstack? How does it work? Something related to Livedata and its work. Coding question : Given a 2D array (e.g. {{915, 1200}, {1145, 1430},{845, 1030}}) where we have start time and end time in int format, we need to return true if our meeting time doesnt overlap with those times false otherwise isMeetingPossible(array, 1200, 1400) -> true/false
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Senior Android Developer

Interviewed at Walmart Global Tech

3.6
Jun 21, 2022

Android: (first 5 mins) => 5,6 questions (Answered all of them, interviewer was happy) (Performance : 9/10) Couple of basic Android fundamental questions that I dont remember How would you update few items that have been changed on the recyclerview? Why so? What is ANR? What is the most common way to getting rid of it? What are some diff ways to do bacground processing? why is it needed? What is a backstack? How does it work? Something related to Livedata and its work. Coding question : Given a 2D array (e.g. {{915, 1200}, {1145, 1430},{845, 1030}}) where we have start time and end time in int format, we need to return true if our meeting time doesnt overlap with those times false otherwise isMeetingPossible(array, 1200, 1400) -> true/false

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