Can Volley Make Synchronous Requests on an Existing Background Thread?

Synchronous Requests with Volley

Imagine a scenario where a service already operates on a background thread. Can you initiate a request using Volley on the same thread, ensuring synchronous callback execution?

Reasons for Synchronous Requests:

• Avoiding unnecessary creation of a new thread.
• Preventing premature thread termination in ServiceIntents, leading to lack of response from Volley.

Solution using RequestFuture:

Volley provides a mechanism for synchronous request execution through its RequestFuture class. For instance, consider this example of a synchronous JSON HTTP GET request:

RequestFuture<JSONObject> future = RequestFuture.newFuture();
JsonObjectRequest request = new JsonObjectRequest(URL, new JSONObject(), future, future);
requestQueue.add(request);

try {
  JSONObject response = future.get(); // blocking operation
} catch (InterruptedException e) {
  // exception handling
} catch (ExecutionException e) {
  // exception handling
}

In this code, the future.get() method blocks the calling thread until the request execution completes, allowing you to obtain the response synchronously.

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