title: How to add Dropdown list of different images with text
body: <p>inside a column object how can we handle adding images associated with different text language inside a dropdown menu ?</p>
  <pre><code>child: new DropdownButtonFormField(
                      decoration: InputDecoration.collapsed(hintText: ''),
                      items: &lt;String&gt;['Japan', 'China'].map((String value) {
                        return new DropdownMenuItem&lt;String&gt;(
                          value: value,
                          child: Align(
                              alignment: Alignment.centerRight,
                              child: Row(
                                children: [
                                  new Image.asset('assets/images/'+ value + '.jpg',
                                      width: 75.0, height: 75.0),
                                  SizedBox(
                                    width: 25,
                                  ),
                                  new Text(value),
                                ],
                              )),
                        );
                      }).toList(),
                    ),
  </code></pre>