Android file uploading using Ion, but upload file was empty

Question

My uploading with Ion returned success. But uploaded file was empty.
As packet dump from wireshark, Ion didn't send file contents.

What did I mistake?

Here are my codes.

MyFragment.java

Ion.with(getContext())
        .load(uploadUrl)
        .uploadProgressHandler(new ProgressCallback() {
            @Override
            public void onProgress(long downloaded, long total) {
                LOG.debug("" + downloaded + " / " + total);
            }
        })
        .setMultipartFile("file", new File(currentPhotoPath))
        .asJsonObject()
        .setCallback(new FutureCallback<JsonObject>() {
            @Override
            public void onCompleted(Exception e, JsonObject result) {
                String msg;
                if (e != null) {
                    LOG.error("upload failed:", e);
                } else {
                    LOG.info("upload completed: {}", result.toString());
                }
        });

I'm using android studio 3.0 and LG G version 5.0.

build.gradle android { compileSdkVersion 26 buildToolsVersion '26.0.2'

defaultConfig {
    applicationId "kr.co.digitalpie.dansok"
    minSdkVersion 17  //Android 4.2 Jelly Bean
    targetSdkVersion 26 
    versionCode 55
    versionName "4.0.0"
    multiDexEnabled true
dependencies {
    compile 'com.koushikdutta.ion:ion:2.+'
    ...

Whireshark packet dump

From whireshark, Ion didn't send file correctly.
So I checked my devices local photo was valid.
Uploading photo was located in /storage/emulated/0/Pictures/DigitalPie/P_20171214_141206_2058037049.jpg, and it's size was 350Kbytes.

Answer 1

It caused by totally my silly mistake. Before starting uploading my another asynctask tried to compress it, but failed. Because of it, compressed image was empty.

I found out my mistake by logging as below.

LOG.info("uploading filesize: " + currentPhotoPath.getSize());
Ion.with(getContext())
 ...

The log said uploading filesize: 0.

Hope my silly mistake to help someone.