# prompt method

Future<String> prompt (BuildContext context, { String title, String labelText, String hintText, String value })

## Implementation

    static Future<String> prompt(BuildContext context, {String title, String labelText, String hintText, String value}) {
      TextEditingController controller = new TextEditingController(text: value);

      Completer completer = new Completer<String>();

      String submittedValue = value;

      showDialog<String>(
        context: context,
        builder: (BuildContext context) {
          return new AlertDialog(
            title: Text(title),
            contentPadding: const EdgeInsets.all(16.0),
            content: SizedBox(
              height: 100.0,
              child: Column(
                  children: <Widget>[
                    //new Text(''),  TODO could add some paragrah here before text-field.
                    new Row(
                      children: <Widget>[
                        Expanded(
                          child: new TextField(
                            controller: controller,
                            onChanged: (String value) {
                              submittedValue = value;
                            },
                            autofocus: true,
                            decoration: new InputDecoration(
                                labelText: labelText, hintText: hintText,
                          ),
                        ))
                      ],
                    ),
                  ]
              ),
            ),
            actions: <Widget>[
              new RaisedButton(
                  child: const Text('Cancel'),
                  onPressed: () {
                    Navigator.of(context).pop();
                  }
              ),
              new RaisedButton(
                  child: const Text('Submit'),
                  onPressed: () {
                    Navigator.of(context).pop();
                    completer.complete(submittedValue);
                  }
              )
            ],
          );
        },
      );
      return completer.future;
    }