How to get an image from the gallery in onActivityResult?

Question

Android

I have a Navigation Drawer which has a fragment with a file upload to the server. This is a class that inherits from Fragment.
I want to get the path to pictures and videos.

Intent galleryIntent = new Intent(Intent.ACTION_GET_CONTENT);
        galleryIntent.setType("image/* video/*");
        getActivity().startActivityForResult(galleryIntent, RESULT_LOAD);


@Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        try {
            if (requestCode == RESULT_LOAD && resultCode == Activity.RESULT_OK && null != data) {
                Uri selectedImage = data.getData();
                String[] filePathColumn = { MediaStore.Images.Media.DATA };
                Cursor cursor = getActivity().getContentResolver().query(selectedImage,filePathColumn, null, null, null);
                cursor.moveToFirst();
                int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
                FULL_PATH_TO_LOCAL_FILE = cursor.getString(columnIndex);
                cursor.close();
            } else {
                //Toast.makeText(PlaceholderFragmentOnDutyCity.this, "You haven't picked Image", Toast.LENGTH_LONG).show();
            }
        } catch (Exception e) {
            //Toast.makeText(this, "Something went wrong", Toast.LENGTH_LONG).show();
        }
    }

FULL_PATH_TO_LOCAL_FILE = null
Please help me understand.
If the class is inherited from Activity, then everything works.