Facebook API / Android : Wall Post publish with image attachment not working

Question

I have the following code.

It works and posts the message-part but the attachment part does\'nt work. I suspect it has to do with passing a JSON as a string.

Fac

Answer 1

Bundle params = new Bundle();
                   // params.putString("multipart/form-data", imgurl);
                    params.putByteArray("multipart/form-data",byteArray);

                    params.putString("caption", txtcaption.getText().toString());
                    /* make the API call */
                    new GraphRequest(
                            AccessToken.getCurrentAccessToken(),
                            "/me/photos",
                            params,
                            HttpMethod.POST,
                            new GraphRequest.Callback() {
                                public void onCompleted(GraphResponse response) {
                                    /* handle the result */
                                    Log.e("responseImagedata---", response.toString());

                                }
                            }
                    ).executeAsync();