title: Make container widget fill parent vertically
body: <p>TL;DR Need the container to fill the vertical space so that it can act as a ontap listener. Have tried most solutions but nothing seems to work.</p>
  <p>So what I am trying to do is to make my container fill up the vertical space while still having a fixed width. <a href="https://i.stack.imgur.com/O8oMB.png" rel="noreferrer">Two first is what I have and third is what I want</a>. The idea is to have the container transparent with a gesture ontap listener. If anyone have a better idea as for a different solution, feel free to suggest.</p>
  <pre><code>    Widget build(BuildContext context) {
      return new GestureDetector(
        onHorizontalDragUpdate: _move,
        onHorizontalDragEnd: _handleDragEnd,
        child: new Stack(
          children: &lt;Widget&gt;[
            new Positioned.fill(           
              child: new Row(
                mainAxisAlignment: MainAxisAlignment.end,
                children: &lt;Widget&gt;[
                  new Container(
                    child: new IconButton(                          
                      padding: new EdgeInsets.only(top: 16.0, bottom: 16.0, left: 24.0, right: 24.0),
                      icon: new Icon(Icons.warning),
                      color: Colors.black12,
                      onPressed: () {},
                    )
                  ),
                ],
              ),
            ),
            new SlideTransition(
              position: new Tween&lt;Offset&gt;(
                begin:  Offset(0.0, 0.0),
                end: const Offset(-0.6, 0.0),
              ).animate(_animation),
              child: new Card(
                child: new Row(
                  children: &lt;Widget&gt;[
                    new Container(
                      width: 20.0,
                      height: 20.0,
                      color: Colors.amber,
                    ),
                    new Expanded(
                      child: new Column(
                        mainAxisSize: MainAxisSize.min,
                        children: &lt;Widget&gt;[
                          
                          _getListTile(),
                          _ifStoplineIsToBeShown()
                        ],
                      ),
                    )
                  ],
                )
              ),
            ),
          ],
        )
      );
    }
  </code></pre>
  <p>I am quite sure that i have been missing something considering the fact that I have tried a lot of different things and nothing seems to work.</p>
  <p>I have also uploaded an image with the debug painting <a href="https://i.stack.imgur.com/Uldtr.png" rel="noreferrer">here</a>.</p>
  <p>PS. I know I have set the height to a fixed value, but this is the only way to show the container.</p>