Android SDE 2 Interview Preparation - Checklist and Resources

Kotlin Advanced

inline, noinline, crosslinline

Suspendable lazy https://proandroiddev.com/once-upon-a-time-in-kotlin-65f6e643e96 https://gist.github.com/elizarov/f27400a55c1502aacc35b4a3b2f5c9af

Idiomic Kotlin series

invariance, covariance & contravariance

Delegations

DSL Basics

Flows Channels, actors https://bladecoder.medium.com/kotlins-flow-in-viewmodels-it-s-complicated-556b472e281a

https://elizarov.medium.com/shared-flows-broadcast-channels-899b675e805c Basic flow impl from scratch

Anonymous functions

Sequences and ranges

Functional programming

Sealed classed & interfaces

@field:Json() syntax

custom lazy implementation

https://dev.to/kotlin/kotlin-standard-library-safari-strings-3lj1

Dependency Injection The dependent class should not care how the dependency is initialized https://proandroiddev.com/lets-build-our-own-simplified-version-of-koin-19a887306258

Android Advanced

Why use view models
Why not pass context in viewmodels
Do you know about single activity arch
How would you centre 3 items horizontally in a layout
How would perform a heavy calculation in background and then update textview
Have you used pending intents?
Would you recommend using asynctask for bg tasks, why
Can you use java.file api to write a file to device storage, what are the limitations
How would you incorporate deep link support
What's better, in running a background task in asynctask, a service or a coroutine
whats your opinion on Cordova, react native, flutter, native
What are dex files, vector drawables?
Have you worked on projects using frameworks and architecture ?, which ones?
How to deal with app getting killed?
http header vs form data
What's the advantage of nested class
How to pass data from activity to activity, activity to fragment, fragment to activity
Structure of apk, how apk signature works
Why we use gradle , is it compulsory
How can I access context in activity, fragment, view, service , view modal and custom class
Have you heard about jetpack libraries
How do you share a file to other app in android
What factors affect app size
Val vs const val
Can we use destructuring declarations in class
lazy vs lateinit
Viewbinding vs kotlin synthetics vs butterknife
How would you implement dynamic grid in recycler view
How would you call a kotlin function in java which takes a lambda argument
What is property delegation in kotlin
Handle back in fragment
sealed class
IPC in android
singleevent
couroutine runs on main or bg thread?
Variable type of R.string.mystring
print all fragent name from acivity
Is launch a suspend function?
launching suspending fun of viewmodal from activity - coroutine getting killed behaviour after activity rotate
Is until in 0 until n, a kotlin keyword
What if i write Thread.sleep(2000) in suspend function
How can i use async in a suspend function
Why synchronised doesnt work on coroutine
Lazy runs in which thread?
Hiding string secrets
Passive vs active MVC in android
In viewmodalscope.launch what is viewmodalscope and what is launch, is viewmodalscope. question about extension functions
How do you make a function blocking in kotlin
How can we pass a lambda to setOnClickListener
Can an inline function work if inline is removed
Will async run if await is not called?
What is type of variable a in: val a = listOf(null)
Write a program which take a lambda and returns a suspedable lambda
Does Koin use reflection?
If we add a usecase module, how would the gradle dependencies change?
How would you implement showing a bar chart with legend in clean arch project
should presentation store pagniation data eg current offset or data layer and how?
Is it always necessary to create interface in one module and its impl in another? (No, reference Refractor PaymentHelper scenerio)
REST vs HTTP
What are the domain entities out of: registration, token, user More at https://hit-alibaba.github.io/interview/Android/Questions.html