retrofit2

Interface Callback<T>

Type Parameters:

T - Successful response body type.

public interface Callback<T>

Communicates responses from a server or offline requests. One and only one method will be invoked in response to a given request.

Callback methods are executed using the Retrofit callback executor. When none is specified, the following defaults are used:

• Android: Callbacks are executed on the application's main (UI) thread.
• JVM: Callbacks are executed on the background thread which performed the request.

Method Summary

Modifier and Type	Method and Description
void	onFailure(Call<T> call, Throwable t) Invoked when a network exception occurred talking to the server or when an unexpected exception occurred creating the request or processing the response.
void	onResponse(Call<T> call, Response<T> response) Invoked for a received HTTP response.

Method Detail

onResponse

void onResponse(Call<T> call,
                Response<T> response)

Invoked for a received HTTP response.

Note: An HTTP response may still indicate an application-level failure such as a 404 or 500. Call Response.isSuccessful() to determine if the response indicates success.

onFailure

void onFailure(Call<T> call,
               Throwable t)

Invoked when a network exception occurred talking to the server or when an unexpected exception occurred creating the request or processing the response.