How to Use String Resources In a ViewModel - Android Studio Tutorial

Whenever possible, you should be using string resources to make sure your app can easily be translated to other languages. However to read a string resource, you need access to the context which you don't have in ViewModels. In this video I show you how you can solve this problem.

Get limited 20% discount on all my courses using the code HAPPY-EASTER:

💻 Let me personally review your code and provide individual feedback, so it won't backfire and cost you a fortune in future:

Subscribe to my FREE newsletter for regular Android, Kotlin & Architecture advice!

Join this channel to get access to perks:

Get the initial source code for this video here:

Get the final source code here:

Join my Discord server:

You like my free content? Here you can buy me a coffee:

[irounik]

Nice one!
TLDR: Return resource id instead of String from ViewModel using a wrapper class, then extract the string from UI layer where context is available.

[evanparrish]

This was impressive, Philip. Power to you for constantly improving and thanks for sharing your knowledge!

[mithilmehta]

You don't know how much I have learned from you. Your tips and tricks are awesome 🙏

[leonawroth]

This looks really interesting. I always just passed down the resId and let the view handle the rest. But your solution looks even cleaner. I'll give it a try!

[andres_tomillas]

Wow, I've just faced that issue today, and here is your upload! The universe has heard me 😅
Thanks for your videos, you're doing a great job, keep it up!

[tracker_x]

I really want to become like you in coding . I am so glade to find youtuber like you who share his knowledge with us

[foivosstamopoulos]

Thank you so much Philipp! You are a great tutor!

[legato]

I was looking for an answer to this problem for a long time and finally thanks to you the problem was solved 👍👍

[RexTorres]

I wish I knew this months ago!! Thanks for this, Philipp!

[yuriynekhodov]

If you need to show error message, you can create sealed class/interface UiEvent, add its child for every type of error in hierarchy, and then map it in UI layer with when operator and using local context. So you won't need resources in your view model or domain layer.

[edgaremmanuel]

I am a fluttter developer but I learn alot from this channel

[mohsenrzna]

Despite the code and the nice approach, it shows your commitment and love to make content on Youtube even when you got cold. Keep up the good work! ;)

[prabhatpandey]

I was using a data class to hold either a messageStr or a messageResId and sending that as error text to my UI layer from viewmodel. The thought of using sealed class didn't occur to me.

Many thanks for this helpful video.

[danju]

The timing on this one is crazy, I was just trying and failing to solve this problem :D well, that problem is now solved :) you are the GOAT!

[tutorialexpress]

Hi phillip could you help me to understand how can use navigation components for feature multi module with arguments and DeepLinks?

[abdelazizyasser]

Hello phillip, thank u so much for your efforts, can i know what's the Channel (include send&receive functions) class in this case ?

[mesutemrecelenk]

Hi Philipp. Thanks for your best practice sharing. Can we collect this message in MainActivity and trigger showing snackbar in our setContent {...} for all composable screens?

[samilindo]

I follow with an implementation very close to yours, but I make an extension of the View class, which allows me to receivereceive the UiText as a parameter, and I set the value internally using the context of the vie itself

[Renaro]

Very good content! Using an interface wrapper for the resources injected in the ViewModel would also work right? Then you can easily provide it and also mock it for unit tests.

[clamum]

Philipp you absolute gigachad, you should do a video on how to do layouts/UIs with Jetpack Compose, but not like the million other tutorials out there that position a few little text fields around and change the background color.

That's not useful for people trying to learn this for the first time and interested in writing an actual real-world app.

So just like the positioning of different elements and putting them together to create real-world app UIs, showing different functionalities of the Modifier, etc. I haven't seen anything good like this, and even the single class on Udemy that seems to be just on layouts doesn't look very extensive and is short.