How to create a modal bottomsheet with circular corners in Flutter?

Question

showModalBottomSheet does not provide any styling or decorations. I want to create something like the Google Tasks bottomsheet.

Answer 1

Putting together all the answers before, I could achieve the best result possible (in my opinion) for this.

showModalBottomSheet(
        context: context,
        backgroundColor: Colors.white,
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.only(topLeft: Radius.circular(15.0), topRight: Radius.circular(15.0)),
        ),
        builder: (context) {
          return Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            mainAxisSize: MainAxisSize.min,
            children: <Widget>[     
              ListTile(
                leading: Icon(Icons.email),
                title: Text('Send email'),
                onTap: () {
                  print('Send email');
                },
              ),
              ListTile(
                leading: Icon(Icons.phone),
                title: Text('Call phone'),
                 onTap: () {
                    print('Call phone');
                  },
               ),                  
            ],
          );
        });

Answer 2

I think the best way to do a rounded-corner modal is to use a RoundedRectangleBorder with a vertical BorderRadius, setting only its top property:

showModalBottomSheet(
        context: context,
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.vertical(top: Radius.circular(25.0)),
        ),
        builder: (BuildContext context) {
          // return your layout
        });

Using separate radii for top left and top right is a bit more verbose and error-prone.

Answer 3

You can now simply set the shape argument. Example:

showModalBottomSheet(
  shape: RoundedRectangleBorder(
    borderRadius: BorderRadius.all(Radius.circular(10.0)),
  ),
  context: context,
  builder: (context) => MyBottomSheet(),
);