What is Retrofit and how it works What is Volley and how it works Comparison of libraries' performing speed Which one is better to use

1. 1
Volley vs Retrofit

2. 2
● What is Retrofit and how it works
● What is Volley and how it works
● Comparison of libraries’ performing speed
● Which one is better to use?

3. 3
Retrofit
Query description:
@GET("/v1/{id}")
Response getSomething(@Path("id") int id);
RestAdapter
RestAdapter APP_SERVER = new RestAdapter.Builder()
.setEndpoint(BuildConfig.HOST)
.setClient(new OkClient(new OkHttpClient()))
.setLogLevel(RestAdapter.LogLevel.FULL)
.build();
Run query:
Communicator.getAppServer().get();

4. 4
Volley
Query description:
StringRequest stringRequest = new
StringRequest(Request.Method. GET, BuildConfig. HOST,
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
}
}
);
Queue initialization:
if (requestQueue == null) {
Network network = new BasicNetwork( new HurlStack());
requestQueue = new RequestQueue( new NoCache(), network);
requestQueue.start();
VolleyLog.DEBUG = true;
}
Run query:
requestQueue.add(stringRequest);

5. 5
Comparison of performance speed without caching
50 queries
Retrofit - 707,5ms
Retorfot SD - 9,3
Volley - 871,36ms
Volley SD - 9,94
300 queries
Retrofit - 854.95ms
Retorfot SD - 11,23
Volley - 847.79ms
Volley SD - 12,8

6. 6
Comparison of performance speed with caching
50 queries
Retrofit - 354,9ms
Retorfot SD - 10,2
Volley - 322,22ms
Volley SD - 8,03

7. 7
Comparison of performance speed of parallel queries:
Chsnge in Volley and Retrofit settings:
Retrofit
.setExecutors(Executors.newFixedThreadPool(50), null)
Volley
requestQueue = new RequestQueue(new NoCache(), network, 50);
Volley ~8s Retrofit ~4s

8. 8
So, which one is better to use?

9. 9
Thanks for your attention!
Alex Bagach
Android Developer