The recruiter asked me some questions about myself and my professional background (experience, technologies, etc.).
Android Engineer Interview Questions
10,452 android engineer interview questions shared by candidates
The second technical interview was one hour of live coding where the interviewer described 2 non-Android related problems and I had to solve them with algorithms and data structures. This interviewer was a lot nicer than the first one, who in my opinion was quite stone faced.
1st Round by Recruiter: 3 sets of questions. 1. Java - Equals & Hashcode, Arraylist & LinkedList, Threads, Collections. 2. Android - Activity lifecycle, Async Task, RecyclerView, View & ViewGroup lifecycle, Fragments. 3. Data Structure and Algorithms O(n) - Arraylist & linkedlist, HashMap - (insert, delete, access & add). 2. Round HackerRank Test: 1-5 MCQ (Java, Android & O(n)): - series of lifecycle events moving from Activity A to B. - View lifecycle on "requestLayout" & on "invalidate" - FInd time complexity of given code snippet. 6. Check balanced braces. 7. In Unsorted array find unique pair where sum of these pair is K. 8. Problem on graph subcomponents.(Zombie Cluster). 3. Round By Android Developer(mostly 2-4 years exp.) Android/Java Theory & O(n) Android: Activity LifeCycle, View LifeCycle, Opinion on why RecyclerView is lagging(scrolls slowly), Async Task, MVP, Service. JAVA: equals & hashcode, Arraylist & LInkedList, Threads, Lock, Object (wait, notify), Synchronization, Checked & Unchecked Exception, How to create unchecked exception, collections, Design Patterns. O(n): 1. ArrayList & LinkedList(Insert, add, delete, access). 2. Traverse whole items in ArrayList & LinkedList which is faster? both are O(n), O(n) but ArrayList would be faster. 4. Code Pair (HackerRank) By Senior Developer(Around 5-8 years) Opinion on why RecyclerView is lagging(scrolls slowly). Q. Write a function to reverse the integer. - what if no is negative - what if reversed no is no longer in range of integer return 0 (check with Integer.MAX_VALUE & Integer.MIN_VALUE)
What is ANR and how to avoid it?
What do you now about equals and hashcode methods in "Kotlin"?
Difference between serialization and parcelable
Write/pseudocode a unit test for the project
Tell me about yourself and your experience
Several questions related to my experience were asked, including topics like Android OS structure, Coroutines, memory leaks, architectures, and key questions typically covered in interviews.
The only time I had a talk with the recruiter was a long time ago, but I was asked basic recruitment screening questions like: - What is your previous experience? What is my current role? - Salary expectations.
Viewing 9791 - 9800 interview questions