How to underline a Container Widget in Flutter

Question

I am trying to underline a Container in my Flutter app. So far I achieved a some kind of underling when I used the following code:

    Container(
        child: Row(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Expanded(
              child: Padding(
                padding: EdgeInsets.all(8.0),
                child: Text(
                  'Underline my parent!',
                  maxLines: 2,
                  textAlign: TextAlign.center,
                ),
              ),
            )
          ],
        ),
        decoration: Border(bottom: BorderSide(color: Colors.grey)),
      ),

But now I want the underline dash not being from start to end, I want to have space on the start and on the end. If there is some smarter way to underline widgets I would be glad to see it too.

Answer 1

You can use a simple Divider widget including a padding:

new Padding(
    padding: EdgeInsets.all(8.0), 
    child: new Divider()
),

You can then wrap your existing widget with a column:

new Column(
    children: <Widget> [
        yourContainerWidget,
        new Padding(
            padding: EdgeInsets.all(8.0), 
            child: new Divider()
        ),     
    ]
)