Naive example composing functions using the network, http web client and files.

example_net_web_view.kt

suspend fun doSomething(webView: WebView): Int {
    val v1 = firstAction()
    val v2 = secondAction(webView)
    val v3 = thirdAction()

    return v1 + v2 + v3 // .i.e. 42
}

suspend fun firstAction(): Int =
    // Do some stuff on the network for example ...
    10

suspend fun secondAction(webView: WebView): Int =
    suspendCoroutine { cont ->
        webView.webViewClient = object : WebViewClient() {
            override fun onPageFinished(view: WebView?, url: String?) {
                cont.resume(30)
            }
        }

        webView.loadUrl(AnURL)
    }

suspend fun thirdAction(): Int =
    // Do some stuff using file for instance ...
    2

This last version uses Kotlin idiomatic suspended coroutines (No more Arrow.Kt)