appwrite/docs/examples/1.8.x/client-android/java/avatars/get-qr.md

import io.appwrite.Client;
import io.appwrite.coroutines.CoroutineCallback;
import io.appwrite.services.Avatars;

Client client = new Client(context)
    .setEndpoint("https://<REGION>.cloud.appwrite.io/v1") // Your API Endpoint
    .setProject("<YOUR_PROJECT_ID>"); // Your project ID

Avatars avatars = new Avatars(client);

avatars.getQR(
    "<TEXT>", // text 
    1, // size (optional)
    0, // margin (optional)
    false, // download (optional)
    new CoroutineCallback<>((result, error) -> {
        if (error != null) {
            error.printStackTrace();
            return;
        }

        Log.d("Appwrite", result.toString());
    })
);