Asked me what bugs you fixed before.
Senior Android Developer Interview Questions
1,814 senior android developer interview questions shared by candidates
How much experience do you have in Java and Kotlin?
Online Test: Print top view of binary tree.(have few invalid test cases result what i felt which can waste your time) A problem statement with java classes you have to write few functions based on problem statement to give result. Find no. of groups of anagrams from given list of strings. Find max sum sub array. Print Left View of binary tree. Print bottom view of binary tree.
Why RxJava? Why not coroutines?
it keyword in kotlin
1. Fragment , service , asynctask , service lifecycle 2. How to stop garbage collection (never had this question in my life before) 3. Lots of questions of Rx-java , though I told them I don't know that they keep on asking about it (like how to run multiple asynctask at the same time) 4. Android ndk 5. Android localization 6. At the end they asked me a data structure question You are given a list of strings , find the anagrams (not sure if the guy wanted me to compare every 2 of them) , time complexity of that etc , by that time I kind of understood they have a different requirement so did not try much for this question. 7. How two threads will communicate with each other (not sure if it is android related or general java question) 8 . How do you handle server exception 9 . Android recycleview
Ways how to save persistent data
I was given a problem involving an integer array, and the goal was to transform it in a way that required careful thought about time and space optimization. While discussing my solution, I suggested using a hashmap for optimization (which is wrong to begin with), which led to a follow-up question about how hashmaps work internally and I couldn't answer it.
MVVM architecture and benifit over MVP , lifecycle related questions, Retrofit, db ect
How would you design the architecture of payments ? ( A scenario was given to me )
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