Learning Concurrency in Kotlin

Using Android's UI coroutine dispatcher

With this done, we can now use the dispatcher in the same way we use any other, for example:

launch(dispatcher) {  val headlines = fetchRssHeadlines()  val newsCount = findViewById<TextView>(R.id.newsCount)  launch(UI) {    newsCount.text = "Found ${headlines.size} News"      }}

The UI dispatcher comes from the library we just added, kotlinx-coroutines-android.

Executing the code at this point will work. The quantity of news will be correctly displayed on the application.