indexIsChanging property Null safety

bool indexIsChanging

True while we're animating from previousIndex to index as a consequence of calling animateTo.

This value is true during the animateTo animation that's triggered when the user taps a TabBar tab. It is false when offset is changing as a consequence of the user dragging (and "flinging") the TabBarView.


bool get indexIsChanging => _indexIsChangingCount != 0;