animatePanelToSnapPoint() in closed state triggers onPanelClosed

[cudajo]

I have a SlidingUpPanel that is in closed state when I manually call the panel controller's animatePanelToSnapPoint().

Listening on the different panel states as the sliding starts - onPanelSlide(0.0) is triggered first, but then immediately followed by onPanelClosed() being triggered as well. After this, additional onPanelSlide(x.x) calls are made until the panel has reached its snap point. I assume that onPanelClosed() really shouldn't trigger in this case, right? As it already has triggered when the panel was closed, it should not trigger again since the panel is actually "opening"...

Could someone please try to reproduce this? Am I doing (or assuming) something wrong? Thanks!

[cameronbatty]

I too am having this issue

[AlexandrKedrov]

Starting from line 222 got me this fixed. I'm not sure about any drawbacks of this solution but I'm a bit skeptic that the things , done in this package, are done on purpose, and I'm missing something

    _ac = new AnimationController(
        vsync: this,
        duration: const Duration(milliseconds: 300),
        value: widget.defaultPanelState == PanelState.CLOSED
            ? 0.0
            : 1.0 //set the default panel state (i.e. set initial value of _ac)
        )
      ..addListener(() {
        if (widget.onPanelSlide != null) widget.onPanelSlide!(_ac.value);
      })
      ..addStatusListener((status) {
        if (widget.onPanelOpened != null && status == AnimationStatus.completed)
          widget.onPanelOpened!();

        if (widget.onPanelClosed != null && status == AnimationStatus.dismissed)
          widget.onPanelClosed!();
      });