slide animation in flutter-CodePudding

Does anyone have an opinion about handling this animation in flutter?

when u swipe left the front card goes left and left bottom then the behind card size becomes bigger and replace the first card.

CodePudding user response：

I did something similar once. What you want to do is use a GestureDetector and listen to onPanUpdate, add a child with a AnimatedPositioned and if needed a Rotated widget.

You can take a look at this gist which is a class from a hackathon we did.

Widget build(BuildContext context) {
    return LayoutBuilder(
      builder: (context, constraints) => GestureDetector(
        onPanStart: _onPanStart,
        onPanEnd: _onPanEnd,
        onPanUpdate: _onPanUpdate,
        child: Stack(
          clipBehavior: Clip.none,
          children: [
            AnimatedPositioned(
                duration: Duration(milliseconds: _duration),
                top: _positionY,
                left: _positionX,
                child: Container(constraints: BoxConstraints(maxHeight: constraints.maxHeight, maxWidth: constraints.maxWidth), child: widget.child))
          ],
        ),
      ),
    );
  }

CodePudding user response：

I would combine those two:

1 - AnimatedPositioned - to move the widget by some offset

2 - AnimatedRotation - so that you can turn the rotation while it is moving