How to upload an audio file (wav) to Google Drive

Question

How to upload an audio file (wav) to Google Drive

UPDATED SOLUTION BELOW

After searching and I found out some demo codes from google quickstart demo and it worked great for image https://github.com/googledrive/android-quickstart

Now I want to go further trying to upload wav file to google drive ... I have some basic knowledge of Android coding, so I try my best to figure it out myself until I get stuck.

Here are my codes.

First, I show a list of WAV files on the user's phone

for(File singleFile : files){
        if(singleFile.isDirectory() && !singleFile.isHidden()){
            al.addAll(Songs(singleFile));

        }
        else{
            if(singleFile.getName().endsWith(".wav") || singleFile.getName().endsWith(".WAV")){
                al.add(singleFile);
            }
        }
    }

Next I will try to force the user to select the wav file they want to download

 ArrayAdapter<String> adp = new ArrayAdapter<String>(getApplicationContext(),R.layout.songs,R.id.song,items);
        listView.setAdapter(adp);
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                if(bytes==null) {
                    startActivity(new Intent(getApplicationContext(), MainActivity.class).putExtra("pos", position).putExtra("songlist", Songs));
                }
            }
        });
    }

after that i am trying to use this to get the position and data of the selected song.

Intent i = getIntent();
    Bundle b = i.getExtras();
    Songs = (ArrayList) b.getParcelableArrayList("songlist");
    position = b.getInt("pos",0);
    u = Uri.parse(Songs.get(position).toString());

This is where I am stuck, I am not sure if I am in the right direction to successfully download the wav file to disk. Disclaimer, all my codes are adapted from my past codes that show a list of wav files and select it to play. so I could be wrong from the start, but I need some guidance for what I should do next, I'm not sure about converting the file to bytes / string and storing in the output stream.

I really hope someone leads me as I have searched the last two weeks about this.

Thank.

** UPDATE **

Hello guys, I found another way to upload to google drive. And I would like to share with everyone. This is a continuation of my codes from above. Here is the code.

First you will get the name of the wav file you want to select.

final String name = Songs.get(position).getName();

Then you put it in multiple lines of code.

Uri uri = Uri.fromFile(new File(Environment.getExternalStorageDirectory(), name));
            Intent share = new Intent(Intent.ACTION_SEND);
            share.putExtra(Intent.EXTRA_TEXT, "Content");
            share.putExtra(Intent.EXTRA_STREAM, uri );
            share.setType("audio/*");
            startActivity(Intent.createChooser(share, "Share Sound File"));