PrevLTRFunction method
void
PrevLTRFunction()
Implementation
void PrevLTRFunction(){
print("Clicked!!!");
var index = PageSelectorTabController!.index;
TabController controller = PageSelectorTabController!;
setState(() {
if (!controller.indexIsChanging && controller.index!=controller.length ) {
controller.animateTo(controller.index - 1);
}
});
}