title: Flutter GridView.builder not scrollable
body: <p>I have a screen with different components, one of which is a GridView.builder which will not scroll no matter what I do.</p>
  <p>I have tried different methods, and nothing is working at all, so I will share what I am trying currently:</p>
  <pre><code>@override
    Widget build(BuildContext context) {
      return Scaffold(
        resizeToAvoidBottomPadding: false,
        body:  Container(
          child: CustomScrollView(
            slivers: &lt;Widget&gt;[
              SliverList(
                delegate: SliverChildListDelegate(
                  [
                    //Some widgets here, some images, some buttons.   This section scrolls perfectly.
                  ],
              SliverList(
            delegate: SliverChildListDelegate(
              [
                GridView.builder(
                    //physics: ScrollPhysics(),
                    shrinkWrap: true,
                    itemCount: imageURLlist.length,
                    gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
                      crossAxisCount: 1,
                    ),
                    itemBuilder: (BuildContext context, int index) {
                      return ListView(
                        children: &lt;Widget&gt;[
                          Image.network(
                            imageURLlist[index],
                            height: 150,
                            width: MediaQuery.of(context).size.width * 0.5,
                            fit: BoxFit.fill,
                          ),
                        ],
                      );
                    }
                  ),
                ),
              ],
            ),
          ],
        ),
      ),
    ),   
  }
  </code></pre>
  <p>The GridView section populates with images, and that's great, but it is not scrollable.   I can scroll down to it, but as soon as I reach this section I lose the ability to scroll completely and I cannot work out why.</p>