Upload a file

File file = new File(localPath);
PutArgs args = new PutArgs(file.getAbsolutePath());
args.name = file.getName();
args.cuase = "user-avatar";

OpenIMClient.getInstance().uploadFile(
    new OnBase<String>() {
        @Override
        public void onSuccess(String result) {
            // result is the final JSON string result of the upload request.
        }

        @Override
        public void onError(int code, String error) {
            // code and error describe the failure.
        }
    },
    new OnPutFileListener() {
        @Override
        public void open(long size) {
            // size is the total byte size of the file to upload.
        }

        @Override
        public void uploadID(String id) {
            // id is the server-assigned upload task identifier.
        }

        @Override
        public void uploadComplete(long fileSize, long streamSize, long storageSize) {
            // File byte transfer is complete.
        }

        @Override
        public void complete(long size, String url, long type) {
            // url is the accessible remote resource URL.
        }
    },
    args
);