Hey guys I have a question. When I select an image from the Document, its uri looks like this:

[<content://com.android.providers.media.documents/document/image%3A38>]

However, when I take a photo and store it in MediaStore.Images, then its uri looks like this:

[<content://media/external/images/media/51>]

. Is there anyway that I get a uri like the first uri? [code in the comment]

Does any one know where are the change log for kotlin gradle plugin published. Specifically looking for this version in android studio 3.6 beta 5. https://mvnrepository.com/artifact/org.jetbrains.kotlin/kotlin-gradle-plugin/1.3.61

Has someone built a datatype adapter for retrofit? similar to the suspend native one but like

fun getModel() : Either<Model, APIError>

Is it possible to use SharedPreferences as I would use Room library with liveData and emitSource()?

I found a bug while converting some Java code to Kotlin on Android Studio. So should I report it on Studio's bug tracker or Kotlin?

Jetpack Compose Question - Does anyone know if it's possible to use 3rd party views with compose yet? I've been trying to play around with Compose, but my app revolves around a custom map view, similar to google maps, and I can't figure out how to implement the view. I believe they mentioned in one of their conference videos that you would be able to use View binding for this type of situation - is that functionality available yet?

Have a studio stable problem, and the #android-studio channel has only 10 people, not sure whether I'll get an answer there Android Studio 3.5.3 is freezing for me when I try to Inspect Code, it runs for a while and then freezes up, and it happens only on one of my projects so I can't create a minimum failure scenario, after it freezes up there is nothing I can do other than do a Force Quit, is there something I can do identify what might be causing this? But otherwise everything else works fine, building the code, installation, code cleanup works fine, its just the Inspect Code that freezes after running for a while and I have no logs or anything to try and identify why its happening, Further I have tried things like running a clean and build, and even invalidate and restart P.S It works fine on AS Canary 6 my bad it froze after a gradle sync and rebuild

Hey guys, how do you handle the development of custom views in a architecture that uses MVVM or other architectural pattern.

Which method should I use is better?

object Constant {
    URL = ""
}

OR

class Constant {
    companion object {
        URL = ""
    }
}

Hi. I'm not able to instantiate the ViewModel. I'm getting the above error.

Hi guys, how can I disable animations when running espresso tests? Have done everything I found on SO, everywhere. Yet animations done by : view.animate()... keep disabling my tests to continue running. Please some light here. Tried DisableAnimation rules, also gradle configurations, nothing works, few animations are disabled, OS level like transitions, but view animations are not. Kind regards.

something that has confused me with coroutines is that you often see things done with runBlocking. Doesn't that sort of defeat the purpose of making a thing a suspend function?

Does anybody know why they are stopping new development on

dagger-android

. I personally don't like it, just want to know more about the problems community faced with it and possibly advocating against it on my company (we use it for every feature).

using dagger2 would it be wise to inject adapters (passing the viewmodelprovider) into a viewmodel and call it from there in the fragment/activity instead injecting it in the activity/fragment itself? (reason from someone else being some configuration change bug) ..not sure if this seems more plausible then normal injection in the activity/fragment?

Hey is there any platform like this for android dev in kotlin

Hey guys 👋. From what I know a ViewModel shouldn't know anything about Android, meaning that it should not receive references such as Intent, Bundle, Uri, etc. Having this in mind, let's say I receive a lot of information from an Intent and I have a complex logic related to all this data. I believe the right way to do it is by delegating this logic to the ViewModel, but since ViewModel shouldn't receive the Intent, what would be a good approach? I came up with these approaches: 1. Get all data in the View layer and pass to the ViewModel through a function. This might not be good because as far as I know passing too many parameters to a function is not good. 2. Create a data class that will have all the data. In this way we might end up having too many data classes. 3. Create an interface that hides any Android related code:

interface IntentInterface {
    fun getStringExtra(name: String?): String
    fun getIntExtra(name: String?): Int
    ...
}

class CustomIntent : Intent, IntentInterface {

    constructor() : super()
    constructor(intent: Intent?) : super(intent)
    constructor(packageContext: Context?, cls: Class<*>?) : super(packageContext, cls)
    ...
}

class SampleActivity: AppCompatActivity() {
	...
	fun handleIntent() {
		viewModel.processReceivedData(CustomIntent(intent))
	}
	...
}

class SampleViewModel: ViewModel() {
	...
	fun processReceivedData(data: IntentInterface) {
		val sampleValue = data.getStringExtra("sample_key")
		...
	}
	...
}

If I try to use kotlin android extensions with v1.3.61 I run into a

Failed resolution of: Lkotlin/internal/ir/Intrinsic;

Anyone experienced this before?

Hi all, I need to access drawables via template literals inside a RecycleView.ViewHolder like:

"@drawable/${formatString(entry)}"

Any thoughts on the best way to do this?

Hello guys. I need advice. I have a

PagedListAdapter

I populate it using

LivePagedListBuilder

. Each list item has

Favorite button

. How it would be better to handle

Favorite button

state? I need to know if an item is already added to favorites and when the button is pressed I need to update

Favorites database

to delete or add this item. (I'm using architecture components in my app). Thank you. My solution: Inside

onBindViewHolder

I call the callback to my activity and pass an item and its position. ViewModel checks if this item is favorited or not and returns a result back to the activity, the activity calls

adapter.notifyItemChanged(position)

. Same goes for

Favorite button

click listener. I need to pass an adapter position to ViewModel I don't like it. I think this solution is really bad but I can't come up with something better.

JakeWarthon stated here https://youtrack.jetbrains.com/issue/KT-20358 that this bug has been solved in Android Gradle 3.3 Alpha 11 plugin but I can reproduce it in Android Gradle 4.0 Alpha 6 plugin.

val map = mapOf<String, String>()
map.getOrDefault("foo", "bar")

This gives no warning from either the compiler or lint and crashes at runtime (on Lollipop) with

Fatal Exception: java.lang.NoSuchMethodError

Am I missing something?

This message was deleted.

Does anyone know if it's possible to target a specific android device? For example, if I wanted all Samsung devices to do one thing. And all other devices to do another? I believe the answer is no, but just wanted to make sure.

Is this a good approach of creating retrofit?

private val retrofit = Retrofit.Builder()
//    .baseUrl(Constant.URL + Constant.VERSION)
    .baseUrl("<http://192.168.1.128:5000/api/>")
    .addConverterFactory(GsonConverterFactory.create())
    .build()

interface RegisterRepository {
    @FormUrlEncoded
    @POST("/api/register")
    suspend fun register(
        @Field("email") email: String,
        @Field("password") password: String
        )User
}
object RegisterApi {
    val retrofitService : RegisterRepository by lazy {
        retrofit.create(RegisterRepository::class.java)
    }
}

What do you guys prefer for making rest calls on Android, say a crud application that has to hit a RUST API a lot

For the needs of my app, I need to share some data access logic between a

Service

and a

Worker

. For that matter I introduced a

Repository

. Because the service needs to know when data from the repository have changed, the repository exposes data as

Flow<List<Foo>>

(making it a reactive repository). Since database access can be expensive i'd like to introduce some memory cache so that either the

Service

or the

Worker

can query the current

List<Foo>

faster. Where would you put that cache ? 1. As a field in the repository itself. 2. As a field in a decorator that wraps the

Repository

. 3. In the

Service

, by consuming the flow with

broadcastIn

. 4. You wouldn't use a memory cache, as

Room

loads fast enough.

not necessarily kotlin specific, but let's give it a try: I'm using Jetpack navigation to navigate between two fragments. One is a list of things, the other one shows a specific thing. On the list I'm getting an

Observable<[Thing]>

, and I'd really like to pass a

Observable<Thing>

to the second fragment. However, I cannot figure out how. I have the list observable in the first fragment's view model and my intuition is that when making the transition, there should be a way to prepare the view model for the second fragment and then it can find it via

ViewModelProvider

. Can't figure out how to do it, though. Maybe there's a totally different way. Any clues?

Hey there, I'm trying to find a way to run a function every second until I stop it. Using RxJava, I can use

Flowable.interval()

(see the docs below), but I would like to use Kotlin Coroutines for that. Do you have any idea on how to do that? http://reactivex.io/RxJava/javadoc/io/reactivex/Flowable.html#interval-long-java.util.concurrent.TimeUnit-

message has been deleted

You can open apks in Android studio. There is an option to compare to previous apk as well, you should be able to see what the added methods are