java - How can I access request MultipartBody information in new Callback<ResponseBody>? -

hello fellow android programmers. stuck on problem. need retrieve filename or index of loop iteration within callback method. using retrofit 2.0.

i thinking can pass information post form field (even if server doesn't need it), , retrieve in call.request.body() inside onresponse() method.

if use debugger can see data. see 2 parts of form. thinking can add part in form hold index. however, don't know how access through code. know best way this? want make sure images have been uploaded @ end of last onresponse callback.

initially wanted using call.execute.body() because have "please wait dialog" gives me exception saying should call method inside asynctask.

please ignore attempts @ turning request json object...

any ideas help, thanks!

for (file f : theimages) {     requestbody reqfile = requestbody.create(mediatype.parse("image/*"), f);     multipartbody.part body = multipartbody.part.createformdata("file", "image.jpg", reqfile);     requestbody repid = requestbody.create(mediatype.parse("text/plain"), string.valueof(newexternalreportid));     uploadcall = hazsnapapi.postimage(body, repid, 1l);     uploadcall.enqueue(new callback<responsebody>() {         @override         public void onresponse(call<responsebody> call, response<responsebody> response) {             responsebody rbody = response.body();             requestbody mrequest = call.request().body();             try {                 string temp = call.request().tostring();                 jsonobject bodyasjson = new jsonobject(call.request().tostring());             } catch (jsonexception e) {                 e.printstacktrace();             }           }         @override         public void onfailure(call<responsebody> call, throwable t) {             t.printstacktrace();          }     }); } 

i ended creating services creates retrofit call. way can call.execute.body(). works because service not run on main thread.