delete_todo_dialog.dart

class DeleteTodoDialog extends StatelessWidget {
  final Todo todo;

  const DeleteTodoDialog({Key key, this.todo}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    
    return Dialog(
      child: Container(
        padding: EdgeInsets.all(16),
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            Row(
              children: [
                Container(
                  child: Text(
                    'Delete ${todo.title}?', 
                    style: TextStyle(
                      color: Colors.black,
                      fontSize: 24,
                    )
                  )
                )
              ]
            ),
            Row(
              children: [
                Expanded(
                  child: FlatButton(
                    textColor: Colors.red,
                    onPressed: () {
                      // we will do delete here
                    }, 
                    child: Text('Delete'),
                  )
                ),
                Expanded(
                  child: FlatButton(
                    textColor: Colors.black54,
                    onPressed: () {
                      Navigator.of(context).pop();
                    }, 
                    child: Text('Dismiss'),
                  )
                ),
              ],
            ),
          ],
        )
      ),
    );
  }

}