Android — AsyncTask API deprecated in Android 11. What are the alternatives ?

Google is deprecating Android AsyncTask API in Android 11 and suggesting to use java.util.concurrent instead

According to the Android documentation AsyncTask was deprecated in API level 30 and it is suggested to use the standard java.util.concurrent or Kotlin concurrency utilities instead.

Using the latter it can be achieved pretty simple:

Create generic extension function on CoroutineScope:

fun <R> CoroutineScope.executeAsyncTask(
         onPreExecute: () -> Unit,
         doInBackground: () -> R,
         onPostExecute: (R) -> Unit
 ) = launch {
     onPreExecute() // runs in Main Thread
     val result = withContext(Dispatchers.IO) { 
         doInBackground() // runs in background thread without blocking the Main Thread
     }
     onPostExecute(result) // runs in Main Thread
 }

Use the function with any CoroutineScope:

In ViewModel:

class MyViewModel : ViewModel() {

    fun someFun() {
        viewModelScope.executeAsyncTask(onPreExecute = {
            // ... runs in Main Thread
        }, doInBackground = {
            // ... runs in…