Yes, this is the best approach to handle heavy task on android. For creating and handling more threads to run multiple processes, you have many options like using Async Task, using RxJava, using Handler thread or Thread Pool Executor. But to be honest, Async Task is no more of use for professional app development because it is deprecated. Also if you are using Kotlin, I strongly suggest you to use Coroutines.

But if you are using Java, I suggest you to use Thread Pool Executor, as it is easy and good approach. ThreadPoolExecutor is a more flexible way to manage multiple threads for background processing. It allows you to create a thread pool and submit tasks for execution. You can specify the maximum number of threads, queue capacity, and other parameters to control how tasks are executed concurrently. This gives you fine-grained control over thread management.

Here I am giving you the example:

// Create a thread pool with 4 threads
ExecutorService executor = Executors.newFixedThreadPool(4);

// Submit tasks for execution
executor.submit(new Runnable() {
@Override
public void run() {
// Perform background task here
}
});

// Shutdown the executor when you’re done
executor.shutdown();

Please remember that when performing background tasks, you should not update the UI directly from the background thread. Use appropriate methods like runOnUiThread() or Handler to post updates to the main thread when needed.

It’s important to note that starting with Android 11 (API level 30), Android discourages the use of AsyncTask and suggests using other concurrency mechanisms, such as java.util.concurrent classes or Kotlin coroutines. Consider using the newer approaches depending on your specific requirements and the Android version you’re targeting.

Additionally, make sure to carefully manage thread usage and avoid creating too many threads, as it can lead to resource contention and performance issues.

I hope that helps you. Feel free to ask more questions.

Thankyou.