hi guys, I am trying to load a web view which plays video inside the loaded web page. I can see the video but the issue is that the full screen button is inactive. Anybody knows how to enable the full screen video playback inside a web view?

Is

onCommit{}

builder being detached https://stackoverflow.com/questions/66382326/has-android-jetpack-compose-beta-detached-builder-of-oncommit ?

I have a language/syntax question, I stumbled on it in Android... I was looking at some code that read:

supportFragmentManager.commit {

...

}

When I see this pattern, I think "trailing closure syntax". On closer examination, I realized that

this

in said closure-esque body wasn't what I thought it was, so I went and found the method signature for FragmentManager.commit...

FragmentManager.commit(allowStateLoss: Boolean = false, body: FragmentTransaction.() -> Unit

I know that () -> Unit is a nullary closure, but what does it mean when I see the above? ClassName.() -> Unit?

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Hi, Please anybody help me about this https://stackoverflow.com/q/66395913/6159314

Hello. Do you know any library of observable data structures that can be used on both JVM and Android?

📚 Sample Android Components Architecture on a Modular Word focused on the scalability, testability and maintainability written in Kotlin, following best practices using Jetpack. Application is based, apply and strictly complies with each of the following 5 points: • A 

single-activity architecture

, using the Navigation component to manage fragment operations. • Android 

architecture components

, part of Android Jetpack give to project a robust design, testable and maintainable. • Pattern 

Model-View-ViewModel

 (MVVM) facilitating separation of development of the graphical user interface. •

S.O.L.I.D

 design principles intended to make software designs more understandable, flexible and maintainable. •

Modular app architecture

 allows being developed features in isolation, independently from other features. Project link: https://github.com/VMadalin/android-modular-architecture

Apologies if wrong channel: how should I override

activityResultRegistry

in Activity tests? The docs have a clear example of testing Fragments, but that approach is not valid for Activities.

message has been deleted

I am new to Android. What design pattern do you usually use with Kotlin apps? With Xamarin.Forms I used MVVM (which was great). What support is there for MVVM in native Android development? Are there any other design patterns that are used more commonly (such as MVC)?

Hey folks, how are you doing? I'd like to know if there's any advantage in using method references instead of Interface references when it comes to Listeners. Let's take for example the snippet of code below:

// Using an Interface
interface ABC {
    fun doIt()
}

private fun doIt() {
    val doItListener = object : ABC {
        override fun doIt() {
            println("Do it!")
        }
    }
    //Passing the Interface reference
    Main(doItListener)
}

// Class which the instruction will be executed in(Interface reference)
class Main(listener: ABC) {
    init {
        listener.doIt()
    }
}

----------------------------------------------------

// Using Method reference
private fun doIt2() {
    println("Do it!")
}

private fun callDoIt2() {
    //Passing Method reference
    Main(::doIt2)
}

// Class which the instruction will be executed in(Method reference)
class Main(task: () -> Unit) {
    init {
        task()
    }
}

----------------------------------------------------

//Running
fun main() {
    doIt()
    callDoIt2()
}

I ran both ways and both worked. But in my real scenario, the "Main" classes are Adapters and both doIt() and doIt2() would be instructions executed when users clicked an item of a list. Both examples would be triggered by such action individually. But my main question is: Does passing a reference of a method located at an Activity actually take with it any kind of information of such Activity which in this case is where it's located at? What do you think is the best approach in this case: A listener created from an Interface or putting all instructions inside a method and then passing its reference to an Adapter or whatever class it is. I'd like to hear from you guys. Thanks in advance.

Hey Folks Need some suggestion on replacing Async tasks. We have very legacy code and Async tasks are being used heavily. Are there any alternatives to replace them such as Worker Manager or something else? Please suggest. FYI, We need a way to communicate back to Callie about the result.

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

Morning guys, We have an interesting use case of generics in kotlin:

import kotlin.reflect.KClass

fun main() {
    doSomething(B::class, C::class)
}

fun <T : A> doSomething(vararg dialogClasses: KClass<T>) {
    // no-op
}

open class A

class B : A()

class C : A()

the compiler complains about the second argument of

doSomething()

function even if it is a sub-type of

A

. Is there any reason for this complaint? How can this issue can be solved?

Is there a deadline when Kotlin Synthetics is going to go from deprecated to removed? Or any official place it is being specifically stated?

Hello, i have an query regarding registForActivityResult, when to get the URI for the file selected

Hi everyone, I am working on a project where clean architecture is implemented. We have 3 modules app(android library), domain(java-library) , data(java-lib) . I am refactoring it to follow mvvm + livedata and retrofit in kotlin. Now domain and data being (java-lib), I can not use androidx libs (thats what i read). every sample codes i have gone through for mvvm+livedata+retrofit there is only one module i.e. app/presentation (android-lib). Can someone direct me to show how I can implement similar architecture having java modules in my project?

In the network layer of my app I have to save a bunch of values in shared preference. These values might be saved from several locations in the app. I am planning to put this task inside a WorkManager.

```    CoroutineScope(coroutineContext).launch {
        val saveProfileWork = OneTimeWorkRequestBuilder<SaveProfileWorker>()
                        .setInputData(
                            workDataOf(
                                "IMAGE_URI" to "http://..."
                            )
                        )
                        .build()
        val request = WorkManager.getInstance(context).beginWith(saveProfileWork).enqueue().await()
        // post success
        return@launch
    }

``` 1. As far as my understanding goes launch starts a coroutine and await() awaits the result from another builder aynch(). This means I will be creating a coroutine inside a coroutine. Outer would be part of my network layer and inner one would be work manager's. I am not sure what should be done here. This also sounds like I might have issue handling exception. 2. How do I get success value from await call? If it asynchronous then return will end the outer launch coroutine.

I’ve just read the new article about the recent Coroutines best practices on Android. Thank you so much for publishing these guidelines! I am happy to learn that I have been doing do a lot of these practices already and I’m sure the others are thankful too to have more guidelines regarding coroutines usage. I would just like to give my feedback (hopefully this Slack is a good place for it) in hopes of understanding these guidelines better for me and the others as well. I’ll take the chance to tag @Manuel Vivo hoping you can take time to read my thread 🙇. This just got me excited that I got up from my bed to ask and learn more about the article. My apologies if it’s too direct and you may ignore it. ⬇️

I have a string “000016” When i call .toString() , it removes the zeros why ?

the 000016 is a Long value. So when i call .toString on it, the zeros are gone. And it returns only 16.

in flow from kotlin there is a method called stateIn to convert flow to stateFlow . signature of the method asks for Coroutine scope . what exactly i need to pass as scope ?

Hiya 👋, I’m still trying to grasp coroutines and dispatchers, and I’ve encountered an issue in my Android app where the thread seemed to be blocked, which I’ve managed to fix but don’t quite understand why 😕 Any explanation would be appreciated! In

onResume

of my main fragment, I’ve got code like this (further down the chain, I don’t call this directly like this in

onResume

):

suspend fun onSessionStart() = withContext(Dispatcher.javascript) {

        for(feature in featuresList) {
            feature.setUpSynchronously()

            myActivity.lifecycleScope.launch(Dispatcher.javascript) {
                feature.setUpAsync()
            }
        }
    }

Right after I call this method above, I call this:

suspend fun start() = withContext(Dispatcher.javascript) {
        //...
    }

Note that

setUpAsync()

may call a method which switches to

Dispatcher.network

, but doesn’t launch a new coroutine. My problem is that on a fresh app launch, this code runs fine, but when I trigger

onSessionStart

again, when the app is still alive, I never get to

start()

and the app stalls. I can see by the logs that all of the

setUpAsync()

calls finish, but they don’t seem to return 🤷‍♀️🏻 Removing the context when launching the async set up, seems to fix the problem:

myActivity.lifecycleScope.launch {
                feature.setUpAsync()
            }

But I don’t understand why, any idea?

Hi guys! A question: what solution do you recommend me to use

Parcelable

in a non-Android module? :bugdroid: I have modules with domain classes, but I need to pass them through bundle

I am working on a multi-platform project and in my commonTest it requires Robolectric test runner (i.e. @RunWith(Robolectric::class)) when running the android actual implementation. I’d like to get the benefit of having a single test execute for both android and ios targets without adding android dependencies to commonTest. Is there a clean way to do this?

is there a known issue with using a group inside MotionLayout to change visibility? Seems like it does not work

Found 2 bugs in alpha version of AGP, but seems like I have no permission to report it. anyone knows that where we should report to?

Hello. I'm trying to share some ViewModels between the JavaFX version of my application, and the Android version. For this purpose, I'm replacing JavaFX

ObservableProperty

with `StateFlow`/`MutableStateFlow`. How can I perform the equivalent of the

select

operation with

StateFlow

? The best that came to my mind is something similar to this function:

fun <T, U> CoroutineScope.selectFlow(
    stateFlow: StateFlow<T>,
    op: (T) -> StateFlow<U>
): StateFlow<U> {
    // We can't create a MutableStateFlow without an initial value
    val mutableStateFlow = MutableStateFlow(op(stateFlow.value).value)
    var job: Job? = null
    launch {
        stateFlow.collect {
            job?.cancel()
            job = launch {
                op(stateFlow.value).collect { 
                    mutableStateFlow.emit(it)
                }
            }
        }
    }
    return mutableStateFlow
}

I don't know the StateFlow API very well. Is there a better way?

Hey everyone! I wrote an article on the onboarding process for mobile development and how well both Apple and Android do in that aspect. While it's not strictly Android or Kotlin focused, it would be invaluable to hear about your experiences as new mobile developers and how well the article reflects on the onboarding process. Of course, constructive criticism of my writing is welcomed so please do reply to this message if you have anything to add.