How to get Context in Jetpack Compose

Question

fun createListItem(itemIndex: Int) {
Padding(left = 8.dp, right = 8.dp, top = 8.dp, bottom = 8.dp) {
    FlexRow(crossAxisAlignment = CrossAxisAlignment.Center) {
               


        

Answer 1

For getting context in jetpack compose:

val context = ContextAmbient.current

Working on 0.1.0-dev14

How to use it in TOAST:

@Composable
fun cardViewImplementer(item: Int) {
   val context = ContextAmbient.current
   Card(
     shape = RoundedCornerShape(10.dp),
     modifier = Modifier.padding(10.dp)
   ) {
     Box(
        modifier = Modifier
            .fillMaxWidth()
            .drawShadow(5.dp)
            .clickable(onClick = {
                Toast.makeText(context, "Clicked $item", Toast.LENGTH_SHORT).show()
            }), children = {

        })
}

For accessing the Resource:

Text("Read this string: "+context.getString(R.string.name))

Answer 2

The way to do this has been updated. It's now:

val context = ContextAmbient.current

ContextAmbient docs

Answer 3

ContextAmbient.current is deprecated as of alpha-09.

AmbientContext.current is how you get the context in a composable.

Answer 4

ContextAmbient and AmbientContext was deprecated

Replace them with

val context = LocalContext.current

Answer 5

I think your never show Toast normal way. Jetpack Compose uses a custom Kotlin compiler plugin to transform these composable functions into the app's UI elements. For example, the Text() function is defined by the Compose UI library. Jetpack Compose is in very early stages of development. You can see all repo of Jetpack compose with sample and integrations test check below link

https://android.googlesource.com/platform/frameworks/support/+/refs/heads/androidx-master-dev/ui

For jetpack compose material demo check this link

https://android.googlesource.com/platform/frameworks/support/+/refs/heads/androidx-master-dev/ui/ui-material/integration-tests/material-demos/src/main/java/androidx/ui/material/demos

Answer 6

ContextAmbient.current has been deprecated, use val context = AmbientContext.current instead.