Sr Android Developer Interview Questions

1,910 sr android developer interview questions shared by candidates

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

Questions on 1. Android basics, java basics 2. Android all components 3. Android Services, Asynctask 4. Most of the scenario base questioned 5. Asked about many latest trends in development Many questions were fired on me.
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Senior Android Developer

Interviewed at Ojas Innovative Technologies

3.6
Mar 14, 2018

Questions on 1. Android basics, java basics 2. Android all components 3. Android Services, Asynctask 4. Most of the scenario base questioned 5. Asked about many latest trends in development Many questions were fired on me.

- [Technical questions] Design pattern(SOLID, GOF based questions) - [Technical questions] Architecture - [Technical questions] Android lifecycle questions about behavior from paticular situation - [Technical questions] RxJava mapping questions - [Technical questions] Dependency injection - [Technical questions] kotlin vs java questions [ask deeper until hashcode] - [Live code review] Discussion about code review approach - [Live code review] Rxjava subscribe and observe method questions - [Live code review] RxJava working thread question : doOn(*) method where this is working - [Live code review] CI/CD ask about setups - [Live coding] Big O notations
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Senior android developer

Interviewed at Paramount

3.4
Jul 23, 2022

- [Technical questions] Design pattern(SOLID, GOF based questions) - [Technical questions] Architecture - [Technical questions] Android lifecycle questions about behavior from paticular situation - [Technical questions] RxJava mapping questions - [Technical questions] Dependency injection - [Technical questions] kotlin vs java questions [ask deeper until hashcode] - [Live code review] Discussion about code review approach - [Live code review] Rxjava subscribe and observe method questions - [Live code review] RxJava working thread question : doOn(*) method where this is working - [Live code review] CI/CD ask about setups - [Live coding] Big O notations

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