Can someone explain to me what this does?

private fun WebView.setRef(ref: (WebView) -> Unit) {
    ref(this)
}

Taken from ui/ui-android-view/src/main/java/androidx/ui/androidview/WebComponent.kt

Simply runs the

ref

function it accept as a parameter providing

this

as receiver of that function 🤔

mm I see. Unfamiliar with how that works. I'll look into that, thanks

I think the reason for this is that to “render” a legacy

View

in a composable, you invoke it as a function – you don’t instantiate it, so you never actually have a reference to the

View

object. This pattern gets you around that.

yeah…. compose will use properties and setter functions on views and interpret them as parameters. The interesting bit is it will also use extension properties/setters if they are in scope. So the

WebView.setRef

function above gets interpreted as a

ref

parameter in the composable webview call. It’s a bit weird, which is why we haven’t talked a ton about it yet, and some of it still might change

gotcha, thanks for the help

Oh, that extension property support is super useful.