Hi guys, i try to use BiometricPrompt, but when i touch the fingerprint sensor the dialog disappear. Anyone know how to get rid of it, Thanks

Hi,Is there a library to replace Android Handler.callback?

is there any library to load svg images? I have checked that Glide doesn't have SVG support and using this one https://github.com/qoqa/glide-sv , i am not able to access GlideApp.

Hello everybody, what is the easiest way to implement zooming function to an imageView?

would you say this is good practice?

class OnActiveTriggerLiveData<T>(
    private val doOnActive: MutableLiveData<T>.() -> Unit
) : MutableLiveData<T>() {

    override fun onActive() {
        super.onActive()
        doOnActive()
    }
}

and you have instance of this inside your

ViewModel

like so:

class AccountViewModel(val repo: Repo) : ViewModel() {
    private val _account = OnActiveTriggerLiveData<Account> { value = repo.account }
    val account: LiveData<Account>
        get() = _account

So every time view(Activity/Fragment) hits

onStart

account will be updated with the newest value so you don’t have to expose method from

ViewModel

and call it from

onStart

nor

onResume

You just observe

LiveData

and not care about anything else

Hey guys, can anybody help me with this one? I'm trying to figure out what's the best way to do this. https://stackoverflow.com/questions/66643570/how-to-properly-migrate-from-livedata-to-flow-that-has-map-transform

I just saw AGP 4.1.3 has been released, and like the other point releases for 4.1 I can’t find a changelog anywhere. The official release page only shows 4.1 https://developer.android.com/studio/releases/gradle-plugin#4-1-0 Are these posted anywhere else or can they be added please? It’s frustrating trying to find out whether an issue you previously had has been fixed or not

Hello guys, is there any way to show a BottomSheet dialog from the actual bottom of the screen, not the fragment itself when using a BottomNavigationView with a FragmentContainer?

how do i store an object using

datastore

i have tried this

val getUsers: Flow<User?>
        get() = dataStore.data.map { preference ->
            preference[USER_DETAILS]
       }

for retrieving and for saving

dataStore.edit {
   it[USER_DETAILS] = MyObject
   }

but nothing is working …

i have see protocol buffers Protocol Buffers | Google Developers

Hey guy, Could anybody help me resolved this problem.?

Hi all I want to create a hybrid application which can run on both ios and android using kmm for shared business logic. Can I use flutter along with kmm to have common UI for both platforms?

Hello ppl! I'm just a beginner in Kotlin, want to play music in my app, with only one touch (button) Pl let anyone get me know how can I go ahead?

What should I use to save a switch button state in the app? Im only finding how to do it in java and not kotlin on the web

Hi all, I’m trying to find a way to create a self-updating ObservableBoolean for the device’s network status. There’s a lot of talk about using a

<http://android.net|android.net>.conn.CONNECTIVITY_CHANGE

intent, however that’s been deprecated. Anyone got any good ideas on how to implement this on devices running Android N or over?

ios has a method called “deinit” is there a way to invoke it using kotlin code ?

Hi everyone. While using preferences DataStore, I’m facing IOException

..preferences_pb.tmp could not be renamed to....preferences_pb

. It’s exactly as in https://stackoverflow.com/questions/66446999/could-not-be-renamed-to-data-user-0-app-android-githubservice-files-datastore-m. Has anyone come across such issue?

I'm facing a really strange bug, the day before yesterday I was coding using an old version of AS(I don't remember the version), this morning I've updated to the latest version 4.1.3. My code isn't being changed anything:

val fragmentTransaction = fragmentManager!!.beginTransaction()

Before I'm was able to navigate between fragments using above code but today isn't, how on the Earth has a bug like this? Then I changed my code to using childFragmentManager and parentFragmentManager but nothing happen, there is no logcat, no error, just can't navigate between fragments anymore, I've debuged and every variables aren't null. Is there anyone facing this bug? any solution works around? thanks in advance!

This message was deleted.

how much knowledge of kotlin do I need before I can start learning android dev do you think? I know these things: • variables, strings, if-else statements, when statements, for loop, while loop, functions, lists and sets, also maps, null safety, classes, interfaces, anonymous objects, abstract classes, functional programming, lambdas, inlined lambdas, lazy initialisation, unsigned, exceptions, try catch blocks, anonymous functions, basic generics (but not in and out), sealed classes, inner classes, data classes, companion objects, objects, difference between how companion objects and regular objects are instantiated, polymorphism, inheritance, Is this enough for me to start? Or is more expansive knowledge needed. For example I'm not familiar with coroutines and I only have basic knowledge with generics.

Im facing an error below, please tell what are the possible causes for this error java.lang.IllegalStateException: Backend Internal error: Exception during file facade code generation My kotlin version :

1.4.21

Android studio : 4.1.2 Note: Im not using jetpack compose

When writing an Android test JUnit rule, is there a good way to write to SharedPreferences in it? Writing to SharedPreferences requires a Context

Hi all. Can anyone tell me what dependency I need for

androidx.test.annotation.UiThreadTest

? I currently have

androidTestImplementation 'androidx.test:annotations:1.3.0'

in my module's build.gradle file, but I cannot find the needed annotation. Edit: Nevermind, SO to the rescue:

'androidx.test:rules:1.3.0'

I guess a follow-up question would be, how the hell would I have found that out otherwise? The documentation points me to the annotations package. Why wouldn't this annotation be there?

Hi everyone, I want to learn the Testing in android, but I don't know anything about it, so I want you to suggest something to start studying the Testing ??

Hi, I’m trying to test KMM, when I create a new KMM project all gradles have many red lines like the attached image but there is no problem to build the project. Is there any way to fix it?

Is it possible to define an abstract function as extension function?

sealed class Foo {
    abstract fun bar()
}

class A : Foo()
class B : Foo()

/* in another file */

fun A.bar() {
  // implementation
}

It seems it's not possible but maybe there is something similar? I just want to move the implementation of

bar()

to other files because the LOC for the implementation is huge. I want to avoid a file with thousands of LOC. Any ideas?

what do you mean by "keep fetching"?

Is there a way to easily make a textview's text transparent if the textview has a background color? The goal is for text to be transparent, thus showing the parent view's background

Hi. I need some advice with bluetooth low energy. I need do some communication with device in background mode. I was wondering if exist better solution than background task where periodically start ble scan and if found device, connect to them and check if data exist on it. I found this article https://developer.android.com/reference/android/bluetooth/le/AdvertiseData but never use it and wanted to ask you some details. Do you know its possible to check that device has some new data during scan process or somehow got information when new data is coming on device?. Becuase i think background ble scanning is heavy solution and maybe is something better than scanning all the time, trying to establish connection and keeping subscription on characteristics.