Flutter DraggableScrollableSheet doesn't show up by pressing button

Question

I want to use DraggableScrollableSheet widget on my application, when I use that like with below code, that can show without problem:

class Home         


        

Answer 1

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If you want to use DraggableScrollableSheet inside showModalBottomSheet, you can simply call this function.

void _showSheet() {
  showModalBottomSheet(
    context: context,
    isScrollControlled: true, // set this to true
    builder: (_) {
      return DraggableScrollableSheet(
        expand: false,
        builder: (_, controller) {
          return Container(
            color: Colors.blue[500],
            child: ListView.builder(
              controller: controller, // set this too
              itemBuilder: (_, i) => ListTile(title: Text('Item $i')),
            ),
          );
        },
      );
    },
  );
}