widgetBuilt method

void widgetBuilt(Duration d)

Implementation

void widgetBuilt(Duration d) {
  double initPos = widget.inverted
      ? 0.0
      : scrollController.position.maxScrollExtent + 25.0;

  scrollController
      .animateTo(
    initPos,
    duration: const Duration(milliseconds: 150),
    curve: Curves.easeInOut,
  )
      .whenComplete(() {
    _timer = Timer(Duration(milliseconds: 1000), () {
      if (this.mounted) {
        setState(() {
          _initialLoad = false;
        });
      }
    });
  });

  scrollController.addListener(() {
    bool topReached = widget.inverted
        ? scrollController.offset >=
                scrollController.position.maxScrollExtent &&
            !scrollController.position.outOfRange
        : scrollController.offset <=
                scrollController.position.minScrollExtent &&
            !scrollController.position.outOfRange;

    if (widget.shouldShowLoadEarlier) {
      if (topReached) {
        setState(() {
          showLoadMore = true;
        });
      } else {
        setState(() {
          showLoadMore = false;
        });
      }
    } else if (topReached) {
      widget.onLoadEarlier!();
    }
  });
}