Earwin delos Santos Earwin delos Santos - 1 month ago 21
Android Question

How to upload file using Volley library in android?

I already have a sub class of Request that is used for http post to the server. The problem is, I have no idea on how can I add a parameter for a file. Posting string to the server is easy. but I need to add file as a different parameter. How can I do it?

public class AddNewPetRequest extends Request<JSONObject> {

private Response.Listener<JSONObject> listener;

public AddNewPetRequest(String url, Map<String, String> params,
Response.Listener<JSONObject> reponseListener, Response.ErrorListener errorListener) {
super(Request.Method.GET, url, errorListener);
this.listener = reponseListener;
this.params = params;
}

public AddNewPetRequest(int method, String url, Map<String, String> params,
Response.Listener<JSONObject> reponseListener, Response.ErrorListener errorListener) {
super(method, url, errorListener);
this.listener = reponseListener;
this.params = params;
}

protected Map<String, String> getParams()
throws com.android.volley.AuthFailureError {
return params;
};

@Override
protected Response<JSONObject> parseNetworkResponse(NetworkResponse response) {
try {
String jsonString = new String(response.data,
HttpHeaderParser.parseCharset(response.headers));
return Response.success(new JSONObject(jsonString),
HttpHeaderParser.parseCacheHeaders(response));
} catch (UnsupportedEncodingException e) {
return Response.error(new ParseError(e));
} catch (JSONException je) {
return Response.error(new ParseError(je));
}
}

@Override
protected void deliverResponse(JSONObject response) {
// TODO Auto-generated method stub
listener.onResponse(response);
}
}


UPDATE QUESTION:
I follow the pattern of one of the answers here in stackoverflow and I came up with this implementation:

public class MultipartRequest extends Request<String> {

private MultipartEntity entity = new MultipartEntity();

private final Response.Listener<String> mListener;
private HashMap<String, String> mParams;


public MultipartRequest(String url, Response.ErrorListener errorListener, Response.Listener<String> listener)
{
super(Method.POST, url, errorListener);
mListener = listener;

buildMultipartEntity();
}

private void buildMultipartEntity()
{
entity.addPart("profile_picture", new FileBody(new File("/storage/emulated/0/Pictures/VSCOCam/2015-07-31 11.55.14 1.jpg")));
try
{
entity.addPart("user_id", new StringBody("15"));
entity.addPart("name", new StringBody("Bogs"));
entity.addPart("gender", new StringBody("Male"));
entity.addPart("date_birth", new StringBody("1999-12-5"));
entity.addPart("breed", new StringBody("monkey"));
}
catch (UnsupportedEncodingException e)
{
VolleyLog.e("UnsupportedEncodingException");
}
}

@Override
public String getBodyContentType()
{
return entity.getContentType().getValue();
}

@Override
public byte[] getBody() throws AuthFailureError
{
ByteArrayOutputStream bos = new ByteArrayOutputStream();
try
{
entity.writeTo(bos);
}
catch (IOException e)
{
VolleyLog.e("IOException writing to ByteArrayOutputStream");
}
return bos.toByteArray();
}

@Override
protected Response<String> parseNetworkResponse(NetworkResponse response)
{
return Response.success("Uploaded", getCacheEntry());
}

@Override
protected void deliverResponse(String response)
{
mListener.onResponse(response);

}


When I add this request to my request queue, it respond a com.android.volley.TimeoutError but if a check the data base, the request executes and add items to the table but the profile picture upload has only 1 byte of size. another problem, my database item added twice.

PROBLEM SOLVED I already fixed this by setting its request time. what was happened is I am not able to get the response from my server after the default timeout of volley library so set my timeout by calling and setting this method to my Request Queue:

multipartRequest.setRetryPolicy(new DefaultRetryPolicy(1000 * 60, DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));

BNK BNK
Answer

I have commented but perhaps you haven't read yet. So here is my answer.

If you want to use Volley, you can refer to some following links:

  1. Working POST Multipart Request with Volley and without HttpEntity
  2. How to send a “multipart/form-data” POST in Android with Volley
  3. Trouble Sending Multipart File with Boundary via Volley

Hope this helps