How to disable the text editing in DropdownMenu<T> class?

Is it possible to disable the DropdownMenu class from free text editing by the user (i.e. the dropdown fields are read-only)

  DropdownMenu(
            width: maxWidth,
            initialSelection: state.current,
            dropdownMenuEntries: options.map(
              (e) {
                return DropdownMenuEntry(
          
                  value: e,
                  label: e.name ?? "",
                  labelWidget: SizedBox(
                    width: size.width,
                    child: Text(
                      e.name ?? "",
                    ),
                  ),
                );

You can set requestFocusOnTap to false to disable the inner text field:

DropdownMenu(
  requestFocusOnTap: false,
  initialSelection: state.current,
  dropdownMenuEntries: [
    for (final option in options)
      DropdownMenuEntry(value: option, label: option.name),
  ],
)

Here's the documentation for this property:

Determine if the dropdown button requests focus and the on-screen virtual keyboard is shown in response to a touch event.

Ignored if a focusNode is explicitly provided (in which case, FocusNode.canRequestFocus controls the behavior).

Defaults to null, which enables platform-specific behavior:

• On mobile platforms, acts as if set to false; tapping on the text field and opening the menu will not cause a focus request and the virtual keyboard will not appear.

• On desktop platforms, acts as if set to true; the dropdown takes the focus when activated.

Set this to true or false explicitly to override the default behavior.

It was added to Flutter in this PR: https://github.com/flutter/flutter/pull/117504.