if I have three fragments A, B, C and A is the home Fragment, how can I know if I’m coming from B or C when I press go back to A, using Navigation Component

If you've used Firebase with Clean architecture + MVVM, how do you handle implementing social authentication like Google Signin? 🤔

Im inside a suspending function in my viewmodel VM, but i need to make an operation with my activity and wait for the result in my VM. How would you approach this ? My initial approach was a sharedFlow inside my VM which is observed by the Activity, which triggers the operation in the Activity. Then i send the result to a Channel and in my VM i was waiting to receive sth on that channel. Felt quiet complicated. Also i think the receive method was not waiting untill sth was sent to the channel

Hi, I have a question regarding Clean Architecture and data models. It's recommended that every layer should have it's own data model and map to the consuming layer's data model. Lets say we have app, domain and data layer. Domain layer is the most inner circle. In data layer I would map to domain model but I have problems how to map from domain to app layer. Domain layer does not know about the model in the app layer so how to map it?

Hi everyone, small question about your practices, let’s say I have a list of restaurants, and then I want to get a detail view when I click one of those. What would you pass as an argument to the detail fragment? 1. The restaurant’s ID and then retrieve the proper data via the ViewModel 2. The restaurant’s detail view data as a serializable I’m currently doing the first one, but I’d like your opinion on this.

@yigit is it possible to create custom room types like rxjava3's flowables/observable/singe, paging's data source etc.. I want room to return a type of my sealed class result, just like you can do with retrofit?

How do you guys migrate sql columns which contain json? (where that json changed)

Hi everyone, quick question for which I can't find the answer on Google: When using Navigation API, and SafeArgs:

val args: SomeFragmentArgs by navArgs()

Does the 

args

 field keep its values after the activity gets killed by the system and recreated? In other words: does the Bundle sent to the Fragment survive? Cheers

Hello guys I have a question to the ones that have modularised apps by features. How are you doing the navigation between features in the app? (Activities and Fragments). I've read that there's bunch of ways but since I did not try all I want you to give me some feedback, I'm about to start a demo project and this is a part that I still don't know how to make it... What I've read (if you have any example of one of those and you can share it with me I'd appreciate): 1. Usage of deep-link to navigate through the app 2. What google "suggested" that is to "hard-code" the

com.example.ActivityOne

and create an intent of it (but what about Fragments?) @Gael Marhic I've read about quadrant, but is there any way to do it for Fragments? And is there any way to avoid using an external plugin? 3. Using coordinates or routers

quick poll, do you store access/refresh tokens in shared prefs or sqlite?

Is there a way to "fix" endpoint that takes bitmaps as base64 strings in json? Could I possibly somehow just stream the whole json, or will I need to implement multipart form data?

Do people pass their ViewModel into their RecyclerView adapter? I always figured that you wouldn't want to so that you can keep the adapter generic

Please tell Google to update the code lab for jetpack compose https://developer.android.com/courses/pathways/compose It is not working now Because the code is old and there are many huge changes in the framework jetpack compose Google should update the code

Do you have opinions on rest api error design? Example: Entering a incorrect (made up) promo code. Is this a http code 400 or 200 + json body error=INVALID_PROMO_CODE

Single State people, how do you treat private vals? Do you remap to public? Or just not care? (Exposing integer counter to anyone is useless and it should be basically be just a boolean for anyone else) I know I can have private val on data class, but I cannot obviously increment it, etc

hey guys. what testing architecture/libraries do you use?

is there someting smart to version retrofit endpoints? (i.e. keep multiple versions in the codebase) without creating a bogus interface and creating wrapper subclasses having the actual retrofit interface as dependency? so much silly boilerplate

I have a question regarding Clean Architecture and caching. According to the recommendations, the "repository" is responsible for caching so I'm able to cache the fetched data. In my use case (domain layer) I would do some transformations with the data. But what if I would like to also cache the data after transformation in domain layer, how would I do this? The use case shouldn't know anything about the outer layers...

Has anyone tries swapping moshi kapt for reflection for debug builds? Worth it?

What layer should combined data exist in? Say I have a

UserRepository

and a

WorkoutRepository

, I want to combine data from both repositories into a single flow (user workout data). I then need to access that data across many screens in my app. Where should I put this logic?

Is it ok to inject a

ViewModel

into another

ViewModel

? I have one

ViewModel

scoped to an Activity and the second one scoped to a Fragment that could use one

flow

from the Activity one

Is there any good reference for feature - level - modularization, including the handling of navigation

Hello guys, I'm looking for someone that want to review a mini library that I created inspired on redux, but with some ideas about dependency injection and event management. (I haven't published yet on github, because Idk if my approach worth it)

Hi Team, Anyone tried navigation graph in multi-module. My project having 2 modules: 1. application module 2. feature module Now, main application contains tab layout using navigation. When user taps on item of tab 1 -> it loads feature module navigation graph with back arrow and show in full screen (tabs should be hidden) Now, if I just use navigation event for navigate to module graph -> it’s showing bottom tab.  i understood issue, i.e. FragmentContainerview having only available area except tabs. So, it’s replacing there. But, now I want this in full screen. And I don’t want to expose more things in main module. Does anyone having idea? Thanks in advance.

Hello 👋 Often, especially in complex fragments I really want to break down components of the screen in separate custom views that will hold the view logic instead of overloading the fragment with bunch of stuff. This makes things a bit difficult when I use ViewModels and Hilt, since ViewModels are only intended to be used from Fragment or Activity and using it in any other place requires a workaround. Does anyone had the same difficulties? For everyone that uses Hilt and ViewModel do you use by viewModels() or you’ve built something custom. Would really appreciate to hear everyone thoughts about it. Cheers

I have an enum class with @StringRes property, which I want to use in a few feature modules. I don’t want to put it directly in domain module, since it has android references, so I need to map into it. Where do I put this enum so all feature modules can access it, and to still have a way to map into it from domain module?

Dynamic feature module: i am trying to run instrumented tests and having this error as a dynamic feature module (feature1 is a dynamic feature module) is added running this command gives below error ./gradlew feature1connectedStgDebugAndroidTest Execution failed for task ‘feature1connectedStgDebugAndroidTest’.

java.util.concurrent.ExecutionException: com.android.tools.build.bundletool.model.exceptions.InvalidCommandException: The APK Set archive does not contain the following modules: [feature1]

should i add any bundle tool flags or setup before running instrumented tests or any know issues with dynamic feature module causing this error?

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I'm not so familiar with MVP, but can a presenter has other presenter as dependency? My concerns are related to testing

Anybudy give me best reference to learn MVVM architecture in Koltin