fabLayoutGallery.setOnClickListener(v -> {
            Intent fileintent = new Intent(Intent.ACTION_GET_CONTENT);
            fileintent.setType("image/*");
            try {
                startActivityForResult(Intent.createChooser(fileintent, "Select Picture"), REAUEST_CODE_IMAGE_GALLERY);

            } catch (ActivityNotFoundException e) {
                Log.e("tag", "No activity can handle picking a file. Showing alternatives.");
            }
        });

@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == REAUEST_CODE_IMAGE_GALLERY && resultCode == RESULT_OK) {
        Uri imageUri = data.getData();
        String path = data.getDataString();

        Bitmap bmp = null;
        try {
            bmp = getThumbnail(this, imageUri);
            formDataRequest(path);
        } catch (IOException e) {
            e.printStackTrace();
        }