is there any way to to load a file other than

startActivityForResult

? technically I could make everything that I need global, but it would cause spaghetti code

Any suggestion for async image loading? In other words: do we have Glide/Fresco/Picasso for Compose? 🙂

What is effect in compose

I am new in android development. Can anybody explain with effect the impact of column vs flexcolumn, row vs flexRow, flexible vs inflexible. I am not able to understand when to use what.

Flutter web has very shitty performance last I saw. I hope they can clean it up

Perhaps I've missed it somewhere but how would I go about getting involved in the development of Compose? Is it (easily) possible for someone from outside? 🙂

I am trying to use floatingActionButton and try to add icon which is in a vector.xml. But there is only image and or shape and nothing for vectorImage. Is there any way to do that.

Column(modifier = ExpandedHeight, crossAxisAlignment = CrossAxisAlignment.End, mainAxisAlignment = MainAxisAlignment.End ) {
        Column(modifier = Spacing(16.dp)) {
            val icon = +imageResource(R.drawable.add)
            FloatingActionButton(icon = icon, color = Color.Red, elevation = 8.dp)
        }
    }

Also tried using +vectorResource(R.drawable.add) as Image

I am trying to show a Compose Dialog on Button click in a Fragment which uses XML resource as a View. When I call openDialog(…) I get the following exception java.lang.IllegalStateException: Composition requires an active composition context. Is it even possible to mix XML and Compsoe together or was it not implemented yet? Thanks! 🙂

I made a composable function which accept

context

as input parameter while calling from

setContent

. How to use the same function calling from

@Preview

function

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
           MainScreen(applicationContext)
        }
    }
}

@Composable
fun MainScreen(context: Context) { ...}

@Preview
@Composable
fun testPreview() {
    MainScreen( needToGetContextHere )
}

As in preview function we cannot pass any parameter. Is there any other approach to preview this ?? I think of one solution is to make

context

global. Is there any other better approach ??

Hi everybody, I have a philosophical question on how would you design your system if it would be large enterprise data entry system (suppose legacy desktop application) with many dialogs, forms, listgrids, etc. which must support keyboard only navigation (without using mouse) - keyboard shortcuts, proper keyboard focus (navigating thru components on screen). I know that Compose currently is suitable for Android, but looking into far future lets suppose that it supports now browsers and desktops. As I understood Compose is just a View layer, kind of MVI architecture, model passes information into "Composable function" and you get visual GUI which return back intents/events/etc. How keyboard focus and navigation should be implemented? Does Compose emits some kind of "focused element" event? Or even how to render GUI component with specific Input field focused? If Compose is just "state renderer" so everything must be embedded into parameters (disabled/enabled field, focused/notfocused field). How about dialogs? How dialogs should be encoded? And how to handle navigation if there is some two or more non modal dialogs on screen. Going further it seems that these questions not directly relates to Compose, but should be separate library framework which handles and implements all GUI logic and then uses Compose to render it. Do these kind of libraries already exists? Maybe some of current GUI frameworks can be used, but looks like everything is tightly integrated with its own GUI rendering engine and cannot be used separately. I know that this all Compose stuff is state of art and no best practices currently exists, but what are your thoughts of how this could be implemented in "Compose" way?

The SwiftUI Tutorial has a section where they wrap their paging component and then use it from SwiftUI, each ‘view’ in the sequence is then declarative and the coordinator logic is bolted on. I want to do the equivalent in Compose. Is there a way to integrate Compose code with just standard View components? and/or an example of doing this? It would seem that the whole idea of a framework entitled Compose would be to demonstrate the creation of components that are made up of other components (like a ViewPager2).

Has the possibility of concurrent mode been discussed? React has started implementing it, and it looks interesting https://reactjs.org/docs/concurrent-mode-intro.html

Hello folks, Is there a way to load images from the network?

Hi all, I am new to jetpack-compose, I have a simple question about the framework, what is the differences between

compose

,

anko

&

litho

? thanks!

Hi, Would like to ask if Video playback is available in Compose yet?

I am trying to view a list of item. From mainActivity class, I am passing arrayList of item to composable function. But while running the app, I am getting this error

java.lang.RuntimeException: Unable to start activity ComponentInfo{<http://package.name/package.name.MainActivity|package.name/package.name.MainActivity>}: java.lang.IllegalStateException: Composition requires an active composition context

I am using Android Canary 4 for android development using compose. I want to know is there any issue with compose or canary editor as it cannot able show preview window even after cleaning and rebuilding an app. I also noticed that even after adding file inside

resources

folder, editor shows error that file doesn't exists.

Hello everyone! Seeking for some validation / feedback on the following idea that becomes possible thanks to Compose (took some ideas from the official sample): - Single activity, single viewmodel that just receives actions from screen components: https://github.com/carlosmuvi/notes-compose/blob/master/app/src/main/java/com/carlosmuvi/notes/RootViewModel.kt - View model just contains Action handlers, passed down to the screen @Composable: https://github.com/carlosmuvi/notes-compose/blob/master/app/src/main/java/com/carlosmuvi/notes/home/HomeActionHandler.kt - Action + currentState = new State. Handled in reducers: https://github.com/carlosmuvi/notes-compose/blob/master/app/src/main/java/com/carlosmuvi/notes/home/HomeReducer.kt - A parent state to handle the current screen: https://github.com/carlosmuvi/notes-compose/blob/master/app/src/main/java/com/carlosmuvi/notes/AppState.kt - One state object per screen, allowing feature modularization: https://github.com/carlosmuvi/notes-compose/blob/master/app/src/main/java/com/carlosmuvi/notes/home/HomeScreen.kt Some open questions: - Where to notify when a "screen is created" to trigger initialization? - Is it the ViewModel really necessary here, since the state objects could keep the state themselves? - In general, do you see this navigation pattern scalable?

any way to get a View instance in compose? I'd like to do this https://developer.android.com/training/snackbar/showing

Is there anyway to write to/read from the saved instance state from a Compose function - like some kind of ambient or something that provides hooks for that?

I want to add two action icon with label and navigationIcon on

topAppBar

I wrote this sample code

TopAppBar(
                title = { Text(text = "Sample App") },
                navigationIcon = {
                    SimpleImageButton(R.drawable.hamburger) {
                        openDrawer()
                    }
                },
                actionData = listOf(+imageResource(R.drawable.search),+imageResource(R.drawable.img_translate))

            ) {
                AppBarIcon(icon = it, onClick = { Toast.makeText(context, "Clicked ", Toast.LENGTH_SHORT).show()})
            }

I do have list of two action item, now how to decide which action icon is clicked ? Is there is any way to check image type inside

if-else

or

when

statement.

Just wondering how I can add a ScrollView to this composable function since in landscape mode, all the views are not visible

@Composable
fun MaterialCard() {

    val image = +imageResource(R.drawable.photographer)
    Card(shape = RoundedCornerShape(size = 8.dp)) {
    Column(modifier = Spacing(16.dp)) {
        SimpleImage(image = image)
        Text("A day in Shark Fin Cove",style = (+themeTextStyle { h6 }).withOpacity(.6f))
        Text("Davenport, California",style = (+themeTextStyle { body2 }).withOpacity(.87f))
        Text("December, 2018",style = (+themeTextStyle { body2 }).withOpacity(0.6f))
        
        Row() {
            Button(text = "Got it",style = ContainedButtonStyle(rippleColor = Color.Green))
            Button(text = "Cancel",style = TextButtonStyle())
            
        }
        
        
    }
    }
}

Can we use

setContentView

which is responsible to load xml layout and

setContent

in single activity class ?

I am using simple

TextField

to get userInput. But I am not able to write anything in

TextFeild

@Composable
fun EditTextView(text: String) {
    val textState = +state{ text }
    Padding(left = 8.dp, top = 8.dp, right = 8.dp) {
        Surface(
            color = Color.Gray,
            shape = RoundedCornerShape(8.dp)
        ) {
            Padding(padding = 5.dp) {
                TextField(value = textState.value,
                    onValueChange = { textState.value = it })
            }
            
        }
    }
}

Has someone talked about how animations will work? Is it going to be TransitionManager automatic type of stuff?

Has someone tried nested

VerticalScroller

, Is it a lot laggy.

There is

setViewContent

which accept composable function as input parameter similar to

setContent

. So I want know what is a diference between

setViewContent

and

setContent

and its use-cases. And my second question is that

setContent

and

setViewContent

both return

CompositionContext?

. So what is the usage of CompositionContext ?

@Leland Richardson [G] you can’t just drop bombs like these and move on 😄! What changes are in the queue? Are they in the repository already? https://twitter.com/intelligibabble/status/1195081633172320256?s=20

Is Compose something that we can contribute to as well?