Using a for loop variable inside a callback leads to a wrong loop state

[Zverik]

In a code like this:

return ListView(
  children: [
    for (final String line in lines)
      ListTile(
        title: Text(line),
        onTap: () {
          print(line);
        },
      ),
  ],
);

It would create list tiles with different titles, but when tapping on those, the printed line will be the same.

This can be circumvented by extracting the ListTile() call into a method.