Why Does PDF Is Not Able to Upload in PHP API for Android Pie, Q and R Using Retrofit 2 in Android/Java? [Not Solved]

Unable to upload video using Retrofit, possible fix?

The issue is that you have a content URI and not a file path. When you pass that to the File constructor, it throws a FileNotFoundException that you silently ignore with

`catch (Exception e){}`

Instead of using a file, you can get a file descriptor to the data using --

ParcelFileDescriptor fd = getActivity().getContentResolver().openFileDescriptor(uri, "r");

and use that to construct your RequestBody. There is no out of the box method to create one from the descriptor, but it is fairly easy to write a routine to do it --

public static RequestBody createBody(final MediaType contentType, final ParcelFileDescriptor fd) {
    if (fd == null) throw new NullPointerException("content == null");

    return new RequestBody() {
        @Override public MediaType contentType() {
            return contentType;
        }

        @Override public long contentLength() {
            return fd.getStatSize();
        }

        @Override public void writeTo(BufferedSink sink) throws IOException {
            Source source = null;
            try {
                source = Okio.source(new ParcelFileDescriptor.AutoCloseInputStream(fd));
                sink.writeAll(source);
            } finally {
                Util.closeQuietly(source);
            }
        }
    };
}

then use it like --

RequestBody video = RequestBody.createBody(MediaType.parse("video/mp4"), fd);

I also noticed that you are hardcoding the media type, you can get the type from the content resolver as well with a call to getType

Retrofit Uploading multiple images to a single key

We can use MultipartBody.Part array to upload an array of images to a single key.
Here is the solution

WebServicesAPI

@Multipart
@POST(WebServices.UPLOAD_SURVEY)
Call<UploadSurveyResponseModel> uploadSurvey(@Part MultipartBody.Part[] surveyImage,
                                             @Part MultipartBody.Part propertyImage,
                                             @Part("DRA") RequestBody dra);

Here is the method for uploading the files.

private void requestUploadSurvey () {
    File propertyImageFile = new File(surveyModel.getPropertyImagePath());
    RequestBody propertyImage = RequestBody.create(MediaType.parse("image/*"),
                                                   propertyImageFile);
    MultipartBody.Part propertyImagePart = MultipartBody.Part.createFormData("PropertyImage",
                                                                             propertyImageFile.getName(),
                                                                             propertyImage);

    MultipartBody.Part[] surveyImagesParts = new MultipartBody.Part[surveyModel.getPicturesList()
                                                                               .size()];

    for (int index = 0; index <
                        surveyModel.getPicturesList()
                                   .size(); index++) {
        Log.d(TAG,
              "requestUploadSurvey: survey image " +
              index +
              "  " +
              surveyModel.getPicturesList()
                         .get(index)
                         .getImagePath());
        File file = new File(surveyModel.getPicturesList()
                                        .get(index)
                                        .getImagePath());
        RequestBody surveyBody = RequestBody.create(MediaType.parse("image/*"),
                                                    file);
        surveyImagesParts[index] = MultipartBody.Part.createFormData("SurveyImage",
                                                                     file.getName(),
                                                                     surveyBody);
    }

    final WebServicesAPI webServicesAPI = RetrofitManager.getInstance()
                                                         .getRetrofit()
                                                         .create(WebServicesAPI.class);
    Call<UploadSurveyResponseModel> surveyResponse = null;
    if (surveyImagesParts != null) {
        surveyResponse = webServicesAPI.uploadSurvey(surveyImagesParts,
                                                     propertyImagePart,
                                                     draBody);
    }
    surveyResponse.enqueue(this);
}

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