Interface
Android
```kotlin
interface AndroidExternalSurfaceScope
```
`AndroidExternalSurfaceScope` is a scoped environment provided when an `AndroidExternalSurface`
or `AndroidEmbeddedExternalSurface` is first initialized. This environment can be used to
register a lambda to invoke when a new `Surface` associated with the
`AndroidExternalSurface`/`AndroidEmbeddedExternalSurface` is created.
## Functions
onSurface
```kotlin
fun onSurface(
onSurface: suspend SurfaceCoroutineScope.(surface: Surface, width: Int, height: Int) -> Unit
)
```
Invokes `onSurface` when a new `Surface` is created. The `onSurface` lambda is invoked on the
main thread as part of a `SurfaceCoroutineScope` to provide a coroutine context. Always
invoked on the main thread.
#### Parameters
| | |
| --- | --- |
| onSurface | Callback invoked when a new `Surface` is created. The initial dimensions of the surface are provided. |