Say I have Views A, B and C. A is baselined to C. C is then set to GONE. Is there a way in XML to change A's baseline alignment to B in that scenario? (edited)  Like a 

app:gone_baseline="some_other_view_than_this_one"

How do I create a

ViewModel

class with a constructor that takes parameters? I found this advice, but there’s a comment saying it’s deprecated. https://www.albertgao.xyz/2018/04/13/how-to-add-additional-parameters-to-viewmodel-via-kotlin/

Greetings, I am not sure if it is the right if it is the right channel, but I do hope some guidance and/or help. I have recently starting Using Glide to load Images from a REST API for a new project I am working and I have become somewhat desperate with an issue I am facing at the moment. I am trying to load images from an existing API, the issue is that the images come as encrypted Bytearray and cannot be read if not decrypted prior to being loaded to the imageView. The flow is as follows: LoadImage(id) -> OutputByteArray -> DecryptAES() -> assign decrypted bytearray/bitmap to imageView. I tried to look for tutorials and examples in Kotlin to do this step, but could not find any relevant sources(I am aware of ModelLoaders and DataRetrievers), but I could not understand how I could add that simple step of Decryption step through Glide

// RecyclerViewListItem.kt

val encryptedImageEndpoint = "API_URL"
  val glideUrl = GlideUrl(encryptedImageEndpoint) { mapOf(Pair("Authorization", "Bearer $testToken")) }
  
  Glide.with(this.containerView).load(glideUrl).signature(ObjectKey(imageID))
                    .transition(DrawableTransitionOptions.withCrossFade()).thumbnail(0.25f)
               .apply(RequestOptions().diskCacheStrategy(DiskCacheStrategy.AUTOMATIC).skipMemoryCache(true).override(selfReference.snapshotImage.width, selfReference.snapshotImage.height)
                            .placeholder(R.drawable.empty_result)
                    ).into(this.itemView.snapshotImage)

//before loading to imageVIiew I need the following to be done with the API Call response: val decryptedByteArray = CryptoCbc.decryptAesCBC(byteArrayFromResponse, sharedSecret)

Hey all, I have some logic that executes inside koltin [buildSrc] module, but this logic depends on BuildConf.DEBUG. And I can't find BuildConfig class inside this module. How can I achieve this? Thank you

Hey guys I am trying to open a pdf file from the Downloads folder, but when I try to it closes immediately.

File file = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS), "la.pdf");

Uri pdfUri = FileProvider.getUriForFile(this, getPackageName() + ".provider", file);
Intent intent = new Intent(Intent.ACTION_VIEW, pdfUri)
.setDataAndType(pdfUri, "application/pdf")                   
.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
startActivity(intent);

file.exists()

shows that the file exists. I am able to locate and open the file in the Download folder, but just not by code. Any idea?

Quick question, I got two lists. List A are local photos (Android room database), List B are photos from the network. I want to compare both lists and show a 'favorite' icon if an item from List A is present in List B

anyone knows how to restart app programaticlly in android 10 ?? pending intent + alarm maneger didn't work

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sorry to go off topic for a sec, Has anyone notice any performance issues with AGP 3.6.2

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I am adapting the Android Room with a View tutorial to my domain. As shown in the picture, I get an

Unresolved reference: Callback

error in the expression

ContactDatabase.Callback

. Why? As shown,

ContactDatabase

extends

RoomDatabase

, and

RoomDatabase.Callback

is defined.

@Database(entities = arrayOf(ContactEntity::class), version = 1)
abstract class ContactDatabase : RoomDatabase() {
    abstract fun contactDao(): ContactDao
    lateinit var callback: RoomDatabase.Callback

    private class ContactDatabaseCallback(
        private val scope: CoroutineScope
    ) : ContactDatabase.Callback() {  <-- Error on this line

I want to create multiple replicas of a project with minor changes (like db filters) in each. For the same I created a library project and want to use its activities in child-replicas. But as soon as I am trying to inherit the parent activity in replica module I receive following error on its... • Supertypes of the following classes cannot be resolved. Please make sure you have the required dependencies in the classpath: class com.alivewallpaper.replicantlib.MainActivity, unresolved supertypes: com.google.android.material.navigation.NavigationView.OnNavigationItemSelectedListener Can't we inherit library activities?

Is there a way to force stop JiT compilation for your app, or force AoT compilation?

is this is a bug that

androidExtensions {
    features = ["parcelize"]
}

still generating synthetic properties in Kotlin 1.3.71?

Constraintlayout inside Framelayout a red flag? 🤔

Hi folks, anyone that was able to use constraint layout 2.0.0-beta4 in the editor of Android Studio 4.1 Canary 4? I'm getting a render error

Do anyone knows how can I maintain a fragment instance after asking permission? If I deny or allow the required permission, the activity is recreated and the fragment which I asked the permission dies

Hi all, I’ve worked on a project where we used a BaseFragment that looked like this:

abstract class ViewModelFragment<VM : BaseViewModel>(@LayoutRes val layout: Int, private val viewModelClass: KClass<VM>) :
    BaseFragment() {

    open lateinit var viewModel: VM

    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
        viewModel = getViewModel(viewModelClass)
        return inflater.inflate(layout, container, false)
    }
}

The idea was to remove as much boilerplate noise in the fragment classes as possible. This project also used

Koin

for DI, this class uses

Koin's

getViewModel()

to set the viewModel. What I don’t like about this approach is that subclasses of this have a constructor that looks like this:

class AudioPlayerFragment : ViewModelFragment<AudioPlayerViewModel>(R.layout.fragment_audio_player, AudioPlayerViewModel::class)

As you can see, for this to work, you need a type annotation and still have to hand in the KClass type, which is just ugly. So I’m wondering if there is any way to get this to just look like this:

class MyFragment<MyViewModel> : ViewModelFragment(myLayout) {}

I understand that there is a limitation as to what Kotlin can do with generics and that I’m basically looking for what `reified`functions can do, but on a class, and that that’s no new question. I was hoping to find a solution like this here: https://stackoverflow.com/a/48398303/8746644 But I can’t figure out a way that would work with Fragments and sub classes . I could also see writing a custom

getViewModel

function to deal with the type, but I don’t know how. Does anybody have a suggestion how I could achieve what I want in a reasonable way?

Guys I have a question, is still a good idea do apps for Tablets? I've been reading and Google is investing on Chrome OS since they say is better than do android tablet apps. I'd like to do a tablet app but I do not know if do it with Android would be the best idea. Could you recommend to me a tutorial to do tablet apps? Are you guys still doing apps for tablet?

How to fetch data from website for example the numbers of affected person with covid-19 in use From worldmeters.info in Android studio using kotlin

how to generate new card view while i am touching button in kt

Anyone have experience regarding migration from Support Library to AndroidX? https://stackoverflow.com/questions/61179356/androidx-jetifier-unable-failed-to-transform-3rd-party-transitive-dependency-tha

reified T::class.java.simpleName return first capital word ex Float
Float::class.java:simpleName return float

is this normal or did i do something wrong?

What’s the proper way to inject the

CoroutineDispatcher

for

LifecycleCoroutineScope

in production? Seems it’s hardcoded to

Dispatchers.Main.immediate

and

SupervisorJob

which is something I desire flexibility around https://developer.android.com/topic/libraries/architecture/coroutines#lifecyclescope

Hi everybody! What do you recommend studying to work multi-modules with Dagger? Where more than one app will be used 🤯

I have a fragment whose behavior depends on the result of looking up the launching `Intent`’s extras in a

RoomDatabase

. I can’t access the database (or even the repository) directly from the fragment’s

onStart()

method, since database access is not allowed on the UI thread. What’s the right way for

onStart()

to initiate a database query on the

IO

thread and then a callback on the UI thread?

Hi y'all, I have a problem, so I asked in stackoverflow. Could you help me? Thank you https://stackoverflow.com/questions/61199571/how-to-test-lambda-func-with-mockito-on-android

Hello, I am developing Android with Kotlin. I need a back-end, so I'm going to try ktor. There are many difficulties in using the ktor without back-end knowledge. Can you help me?