VisibilityDetector fires event unexpectedly

[satoyan]

Problem description

This is about VisibilityDetector. This widget fires 'onVisibilitychanged' event when any widget is on over its navigator route. every time virtual keyboard appears and disappears , VisibilityDetector under any widget's route will detect its visibiltychange and fires .

Steps to reproduce

1. prepare a widget which has VisibilityDetector include any child widets.
2. navigate to another widget which has html contents include text input form.
3. tap text input form inside widget and show virtual keyboard
4. VisibilityDetector fires onVisibilityChanged event .

Expected behavior

do not fire onVisibiliyChanged event

Actual behavior

fires onVisibilityChanged event

Environment

Flutter 3.16.2

both android , ios

thank you.

[ttxz]

Yes, I have this problem too, is there any solution?

[astheras]

same here. But as a temporary solution, i use smth like this

  void onVisibilityChanged(VisibilityInfo info) {
    // fires on keayboard appearance
    if (info.visibleFraction == 1 && needToReload) {
      needToReload= false;
      loadTimeZoneList();
      loadSelf();
    }

    if (info.visibleFraction == 0) {
      needToReload= true;
    }
  }