execute callback when sliding or when finishes to slide about flutter_slidable

[Darren-FanDemand]

Just to add to these voices, handleSlideIsOpenChanged still doesn't work. Perhaps this issue should be re-opened.

[marcelser]

Actually the usage instructions don't work neither the ones you provided here nor the slightly more extensive ones in the documentation where it states

final SlidableController slidableController = SlidableController(
  onSlideAnimationChanged: handleSlideAnimationChanged,
  onSlideIsOpenChanged: handleSlideIsOpenChanged,
  );
...
  void handleSlideAnimationChanged(Animation<double> slideAnimation) {
    setState(() {
      _rotationAnimation = slideAnimation;
    });
  }

  void handleSlideIsOpenChanged(bool isOpen) {
    setState(() {
      _fabColor = isOpen ? Colors.green : Colors.blue;
    });
  }

the problem is that handleSlideAnimationChanged and handleSlideIsOpenChanged need to be static methods in the SlidableController Initializer and when you make them static of course you cannot use setState() anymore which makes it impossible to update the screen (or any widget)

Please provide working example of this. It would be greatly appreciated as I'm trying to implement it currently but I'm stuck here completely.

[arpitjacob]

Hi I am looking for a solution to this as well tried to follow the instructions but the code doesn't seem to work.

[letsar]

Hi @juliovedovatto

There is nothing for this right now, but I can implement something in the controller I think.

[MarsGoatz]

onSlideIsOpenChanged is being triggered if I provide onSlideAnimationChanged. So for now as a workaround, I am providing a dummy onSlideAnimationChanged.

[letsar]

I can do something great with a callback that takes an animation (look at the FAB):

Do you think it will be good for you?

[juliovedovatto]

@letsar that would be great

Well, I just need a callback event when the slide event init and when it ends.

Something like to fire a callback when translate starts and when it finishes. Like this js lib does https://github.com/mango/slideout#events (example)

The slideout emits translatestart, translate and translateend events only when it is opening/closing via touch events.

[letsar]

Hi @juliovedovatto

I don't want to add a lot of callbacks, but I added another one to be notified when the active Slidable is open or closed.

I pushed this on this branch: https://github.com/letsar/flutter_slidable/tree/feature/35_slide_callbacks can you tell me if it's ok for you?

To use this, you need to the the onSlideIsOpenChanged callback on the SlidableController. This callback can be used like this:

  void handleSlideIsOpenChanged(bool isOpen) {
    setState(() {
      _fabColor = isOpen ? Colors.green : Colors.blue;
    });
  } 

[letsar]

Published in version 0.4.8

[lane-faison]

@letsar , the Slidable widget is still in an active state if you slide it open and then slide it closed without lifting your finger. Can you update the package to call .close() when isOpen (handleSlideIsOpenChanged(bool isOpen)... is changed to false?

[letsar]

@lane-faison The package has completely be rewritten, can you test it in the preview version to see if it's still occurs?

[adnanjpg]

Hi, what's the status on this?