How to disable checkbox flutter

Question

I am using Checkbox inside a ListTile like the following:

 ListTile(
  leading: Checkbox(
  value: _isChecked,
    onChanged: (v) {
      setState(() {
          _isChecked = !_isChecked;
      });
    },
  ),
  title: Text("is Bathroom"),
);

How can I disable the checkbox. I know that the Checkbox widget is stateless. But is there any other Widget provided in material subpackage that can do this. Something like InputDecorator.

Also I have same question with DropdownButton. I am using it as following to choose an item in a form from a dropdown list.

             InputDecorator(
                decoration: InputDecoration(
                  labelText: "Type",
                  hintText: "Choose the type",
                ),
                isEmpty: _type == null,
                child: DropdownButton<int>(
                  value: _type,
                  isDense: true,
                  onChanged: (value) {
                    setState(() {
                      _type = value;
                    });
                  },
                  items: _buildDropdownItemList(),
                ),
              );

I tried the enable argument in InputDecoration but that just changes the decoration. User can still change the selection.

Answer 1

You can pass null to the onChanged property and this will disable the checkbox.