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@yamacraft yamacraft/GsonRequest.java
Last active Aug 29, 2015

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多分これが一番汎用性がある気がするGsonRequest
import com.android.volley.AuthFailureError;
import com.android.volley.NetworkResponse;
import com.android.volley.ParseError;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.Response.ErrorListener;
import com.android.volley.Response.Listener;
import com.android.volley.toolbox.HttpHeaderParser;
import com.google.gson.Gson;
import com.google.gson.JsonSyntaxException;
import java.io.UnsupportedEncodingException;
import java.util.Map;
/**
* Volley adapter for JSON requests that will be parsed into Java objects by Gson.
* https://gist.github.com/ficusk/5474673
* https://github.com/DWorkS/VolleyPlus/blob/master/library/src/com/android/volley/request/GsonRequest.java
*/
public class GsonRequest<T> extends Request<T> {
private static final String TAG = GsonRequest.class.getSimpleName();
private final Gson gson = new Gson();
private final Class<T> clazz;
private final Map<String, String> headers;
private final Map<String, String> params;
private final Listener<T> listener;
/**
* Make a GET 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
* @param headers Map of request params
*/
public GsonRequest(String url, Class<T> clazz, Map<String, String> headers,
Listener<T> listener, ErrorListener errorListener) {
super(Method.GET, url, errorListener);
this.clazz = clazz;
this.headers = headers;
this.params = null;
this.listener = 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
* @param headers Map of request headers
*/
public GsonRequest(int method, String url, Class<T> clazz, Map<String, String> headers,
Map<String, String> params,
Listener<T> listener, ErrorListener errorListener) {
super(method, url, errorListener);
this.clazz = clazz;
this.headers = headers;
this.params = params;
this.listener = listener;
}
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
return headers != null ? headers : super.getHeaders();
}
@Override
protected Map<String, String> getParams() throws AuthFailureError {
return params != null ? params : super.getParams();
}
@Override
protected void deliverResponse(T response) {
if(null != listener) {
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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