Check if the widget is currently visible using bool isVisible() .
Read moreWhat is visibility detector in Flutter?
VisibilityDetector. A VisibilityDetector widget wraps an existing Flutter widget and fires a callback when the widget’s visibility changes . (It actually reports when the visibility of the VisibilityDetector itself changes, and its visibility is expected to be identical to that of its child.)
Read moreHow do I know if a widget is visible in a viewport?
print(‘Widget is visible in the viewport at position: $yPosition’); // do stuff… } else { print(‘Widget is not visible. ‘); // do stuff… }27 Haz 2018
Read moreIs visible widget a Flutter?
Flutter Visibility Widget Visibility is a widget that is useful to show or hide other widgets in flutter . We have to wrap the widget we want to show or hide inside the visibility widget as a child. This widget has a property called visible which controls the state (visible or invisible) of the child.
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