How to prevent Checkboxes to call onChange too soon in Flutter?

Here's the code:

 Checkbox(
   value: value,
   onChanged: (newValue) {
         setState(() => value = newValue);
         
         // Restructure data based on new value
         _restructureData(newValue);
      }
   activeColor: Colors.orange,
   materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
   tristate: true,
 );

However, since tristate = true, so if you are in null position going to true you need to press twice (null => false => true). But this also means that _restructureData(newValue) is called twice.

So how do I call _restructureData(newValue) only once the user finish tapping the check box whether it is once, twice or how many times he/she wants to press it before he stops?