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GsonRequest for Volley
import java.io.UnsupportedEncodingException;
import com.android.volley.NetworkResponse;
import com.android.volley.ParseError;
import com.android.volley.Response;
import com.android.volley.toolbox.HttpHeaderParser;
import com.android.volley.toolbox.JsonRequest;
import com.google.gson.Gson;
import com.google.gson.JsonSyntaxException;
public class GsonRequest<T> extends JsonRequest<T> {
public final String TAG = GsonRequest.class.getSimpleName();
private final Gson gson = new Gson();
private final Class<T> clazz;
private final Response.Listener<T> listener;
/**
* Make a request and return a parsed object from JSON.
*
* @param url URL of the request to make
* @param clazz Relevant class object, for Gson's reflection
*/
public GsonRequest(int method, String url, Class<T> clazz, String json,
Response.Listener<T> listener, Response.ErrorListener errorListener) {
super(method, url, json, listener, errorListener);
this.clazz = clazz;
this.listener = listener;
}
@Override
protected void deliverResponse(T response) {
listener.onResponse(response);
}
@Override
protected Response<T> parseNetworkResponse(NetworkResponse response) {
try {
String json = new String(
response.data,
HttpHeaderParser.parseCharset(response.headers));
return Response.success(
gson.fromJson(json, clazz),
HttpHeaderParser.parseCacheHeaders(response));
} catch (UnsupportedEncodingException e) {
return Response.error(new ParseError(e));
} catch (JsonSyntaxException e) {
return Response.error(new ParseError(e));
}
}
}
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