Picking up an audio file android

 first of all open gallery through intent -
  public void openGalleryForAudio() {
        Intent videoIntent = new Intent(
                Intent.ACTION_PICK,
                android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI);
        startActivityForResult(Intent.createChooser(videoIntent, "Select Audio"), AUDIO_REQUEST);
}


Then onActivityResult you should catch data - 
if (requestCode == AUDIO_REQUEST && null != data) {
                if (requestCode == AUDIO_REQUEST) {

                    Uri uri = data.getData();
                    try {
                        String uriString = uri.toString();
                        File myFile = new File(uriString);
                        //    String path = myFile.getAbsolutePath();
                        String displayName = null;
                        String path2 = getAudioPath(uri);
                        File f = new File(path2);
                        long fileSizeInBytes = f.length();
                        long fileSizeInKB = fileSizeInBytes / 1024;
                        long fileSizeInMB = fileSizeInKB / 1024;
                        if (fileSizeInMB > 8) {
                            customAlterDialog("Can't Upload ", "sorry file size is large");
                        } else {
                            profilePicUrl = path2;
                            isPicSelect = true;
                        }
                    } catch (Exception e) {
                        //handle exception
                        Toast.makeText(GroupDetailsActivity.this, "Unable to process,try again", Toast.LENGTH_SHORT).show();
                    }
                    //   String path1 = uri.getPath();

                }
            }

 This function is use for absolute path of audio file
 private String getAudioPath(Uri uri) {
        String[] data = {MediaStore.Audio.Media.DATA};
        CursorLoader loader = new CursorLoader(getApplicationContext(), uri, data, null, null, null);
        Cursor cursor = loader.loadInBackground();
        int column_index = cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
    }

You can put below codes in your project when you want to select audio.

Intent intent_upload = new Intent();
intent_upload.setType("audio/*");
intent_upload.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(intent_upload,1);

And override onActivityResult in the same Activity, as below

@Override 
protected void onActivityResult(int requestCode,int resultCode,Intent data){

  if(requestCode == 1){

    if(resultCode == RESULT_OK){

        //the selected audio.
        Uri uri = data.getData(); 
    }
  }
  super.onActivityResult(requestCode, resultCode, data);
}

No need to add type here like audio/*. It will crash to search such type of action. Try this. It worked for me.

val intent = Intent(Intent.ACTION_PICK, android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI)
        startActivityForResult(intent, AUDIO_REQUEST_CODE)