How to Replace the Deprecated AsyncTask API in Android 11?

Alternatives to AsyncTask API Deprecated in Android 11

In Android 11, the AsyncTask API has been deprecated in favor of utilizing the java.util.concurrent package instead. Developers maintaining older Android codebases with asynchronous tasks will need to adapt their code for future compatibility.

Java.util.concurrent Alternative for Static Inner Class AsyncTask

To replace a static inner class AsyncTask using java.util.concurrent for an application with a minimum SDK version of 16, the following code snippet can be employed:

ExecutorService executor = Executors.newSingleThreadExecutor();
Handler handler = new Handler(Looper.getMainLooper());

executor.execute(new Runnable() {
    @Override
    public void run() {

        //Background work here

        handler.post(new Runnable() {
            @Override
            public void run() {
                //UI Thread work here
            }
        });
    }
});

Alternatively, developers using Java 8 or later can simplify the code further:

ExecutorService executor = Executors.newSingleThreadExecutor();
Handler handler = new Handler(Looper.getMainLooper());

executor.execute(() -> {
    //Background work here
    handler.post(() -> {
        //UI Thread work here
    });
});

This approach utilizes the java.util.concurrent package to execute background tasks and a Handler to update the UI thread. It is a suitable replacement for the deprecated AsyncTask API while maintaining compatibility with Android devices running older API levels.

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