Sending Multipart data using Volley

MulipartRequest

import android.util.Log;
 
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.VolleyLog;
import com.android.volley.toolbox.HttpHeaderParser;
import com.google.gson.Gson;
import com.google.gson.JsonSyntaxException;
 
import org.apache.http.HttpEntity;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.mime.MultipartEntityBuilder;
 
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.Map;
 
public class MultipartRequest extends Request {
    private static final String KEY_PICTURE = "picture";
    private static final String TAG = "MutlipartRequest";
 
    private HttpEntity mHttpEntity;
    private final Class mClass;
    private Response.Listener mListener;
    private Map<String, String> mHeaders;
    private final Gson gson;
 
    public MultipartRequest(String url, File file,
                            Class clazz,
                            Map<String, String> headers,
                            Response.Listener listener,
                            Response.ErrorListener errorListener) {
        super(Request.Method.POST, url, errorListener);
        mHeaders = headers;
        mClass = clazz;
        mListener = listener;
        gson = new Gson();
        mHttpEntity = buildMultipartEntity(file);
    }
 
    public MultipartRequest(String url, String path,
                            Class clazz,
                            Map<String, String> headers,
                            Response.Listener listener,
                            Response.ErrorListener errorListener) {
        super(Request.Method.POST, url, errorListener);
        mHeaders = headers;
        mClass = clazz;
        mListener = listener;
        gson = new Gson();
        mHttpEntity = buildMultipartEntity(path);
    }
 
    private HttpEntity buildMultipartEntity(String path) {
        File file = new File(path);
        return buildMultipartEntity(file);
    }
 
    private HttpEntity buildMultipartEntity(File file) {
        MultipartEntityBuilder builder = MultipartEntityBuilder.create();
        String fileName = file.getName();
        builder.addBinaryBody(KEY_PICTURE, file, ContentType.create("image/jpeg"), fileName);
        return builder.build();
    }
 
    @Override
    public Map<String, String> getHeaders() throws AuthFailureError {
        return mHeaders != null ? mHeaders : super.getHeaders();
    }
 
    @Override
    public String getBodyContentType() {
        return mHttpEntity.getContentType().getValue();
    }
 
    @Override
    public byte[] getBody() throws AuthFailureError {
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        try {
            mHttpEntity.writeTo(bos);
        } catch (IOException e) {
            VolleyLog.e("IOException writing to ByteArrayOutputStream");
        }
        return bos.toByteArray();
    }
 
    @Override
    protected Response parseNetworkResponse(NetworkResponse response) {
        String json;
        try {
            json = new String(response.data, HttpHeaderParser.parseCharset(response.headers));
        } catch (UnsupportedEncodingException e) {
            Log.e(TAG, String.format("Encoding problem parsing API response. NetworkResponse:%s", response.toString()), e);
            return Response.error(new ParseError(e));
        }
        try {
            return Response.success(gson.fromJson(json, mClass), HttpHeaderParser.parseCacheHeaders(response));
        } catch (JsonSyntaxException e) {
            Log.e(TAG, String.format("Couldn't API parse JSON response. NetworkResponse:%s", response.toString()), e);
            Log.e(TAG, String.format("Couldn't API parse JSON response. Json dump: %s", json));
            return Response.error(new ParseError(e));
        }
    }
 
    @Override
    protected void deliverResponse(T response) {
        mListener.onResponse(response);
    }
}