retrofit-multiple-file-upload-with-progress

Upload multiple files with progressbar in retrofit android

Retrofit does not have any function to upload multiple files files with progress callback. I have created a class FileUploader that makes multiple files upload easy with retrofit.

public void uploadFiles(){
    File[] filesToUpload = new File[files.size()];
    for(int i=0; i< files.size(); i++){
        filesToUpload[i] = new File(files.get(i));
    }
    showProgress("Uploading media ...");
    FileUploader fileUploader = new FileUploader();
    fileUploader.uploadFiles("/", "file", filesToUpload, new FileUploader.FileUploaderCallback() {
        @Override
        public void onError() {
            hideProgress();
        }

        @Override
        public void onFinish(String[] responses) {
            hideProgress();
            for(int i=0; i< responses.length; i++){
                String str = responses[i];
                Log.e("RESPONSE "+i, responses[i]);
            }
        }

        @Override
        public void onProgressUpdate(int currentpercent, int totalpercent, int filenumber) {
            updateProgress(totalpercent,"Uploading file "+filenumber,"");
            Log.e("Progress Status", currentpercent+" "+totalpercent+" "+filenumber);
        }
    });
}

Demo is available on DevStudioOnline: Retrofit multiple file upload with progress in android