temp

main.dart

import 'package:flutter/material.dart';
import 'package:flutter/physics.dart';

main() {
  runApp(
    MaterialApp(
      debugShowCheckedModeBanner: false,
      home: PhysicsCardDragDemo(),
    ),
  );
}

class PhysicsCardDragDemo extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return PhysicsCardDragDemoS();
  }
}

class PhysicsCardDragDemoS extends State<PhysicsCardDragDemo> {
  bool selected = false;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Test diachenko'),
      ),
      body: Stack(children: [
        Positioned(
          width: 400,
          height: 200,
          left: 150.0,
          child: Card(
            child: Center(child:Text("Loading data..."),)
          ),
        ),
        AnimatedPositioned(
          width: 400,
          height: 200,
          left: selected ? -450.0 : 150.0,
          duration: selected ? const Duration(seconds: 2) : const Duration(milliseconds: 1),
          curve: Curves.fastOutSlowIn,
          onEnd:(){
            setState((){
              selected = false;
            });
           
          },
          child: SwipeGestureRecognizer(
              child: Card(
                child: FlutterLogo(),
              ),
              onSwipeLeft: () {
                setState(() {
                  selected = true;
                });
              }),
        ),
      ]),
    );
  }
}

class SwipeGestureRecognizer extends StatefulWidget {
  final Function() onSwipeLeft;
  final Function() onSwipeRight;
  final Function() onSwipeUp;
  final Function() onSwipeDown;
  final Widget child;
  SwipeGestureRecognizer({
    Key key,
    this.child,
    this.onSwipeDown,
    this.onSwipeLeft,
    this.onSwipeRight,
    this.onSwipeUp,
  }) : super(key: key);

  @override
  _SwipeGestureRecognizerState createState() => _SwipeGestureRecognizerState();
}

class _SwipeGestureRecognizerState extends State<SwipeGestureRecognizer> {
  Offset _horizontalSwipeStartingOffset;
  Offset _verticalSwipeStartingOffset;

  bool _isSwipeLeft;
  bool _isSwipeRight;
  bool _isSwipeUp;
  bool _isSwipeDown;

  @override
  void initState() {
    super.initState();
    _horizontalSwipeStartingOffset =
        _horizontalSwipeStartingOffset = Offset(0, 0);
    _isSwipeDown = _isSwipeUp = _isSwipeRight = _isSwipeLeft = false;
  }

  @override
  Widget build(BuildContext context) {
    return (widget.onSwipeLeft != null || widget.onSwipeRight != null) &&
            (widget.onSwipeDown != null || widget.onSwipeUp != null)
        ? GestureDetector(
            child: widget.child,
            onHorizontalDragStart: (details) {
              _horizontalSwipeStartingOffset = details.localPosition;
            },
            onHorizontalDragUpdate: (details) {
              if (_horizontalSwipeStartingOffset.dx >
                  details.localPosition.dx) {
                _isSwipeLeft = true;
                _isSwipeRight = false;
              } else {
                _isSwipeRight = true;
                _isSwipeLeft = false;
              }
            },
            onHorizontalDragEnd: (details) {
              if (_isSwipeLeft) {
                if (widget.onSwipeLeft != null) {
                  widget.onSwipeLeft();
                }
              } else if (_isSwipeRight) {
                if (widget.onSwipeRight != null) {
                  widget.onSwipeRight();
                }
              }
            },
            onVerticalDragStart: (details) {
              _verticalSwipeStartingOffset = details.localPosition;
            },
            onVerticalDragUpdate: (details) {
              if (_verticalSwipeStartingOffset.dy > details.localPosition.dy) {
                _isSwipeUp = true;
                _isSwipeDown = false;
              } else {
                _isSwipeDown = true;
                _isSwipeUp = false;
              }
            },
            onVerticalDragEnd: (details) {
              if (_isSwipeUp && widget.onSwipeUp != null) {
                widget.onSwipeUp();
              } else if (_isSwipeDown && widget.onSwipeDown != null) {
                widget.onSwipeDown();
              }
            },
          )
        : (widget.onSwipeLeft != null || widget.onSwipeRight != null)
            ? GestureDetector(
                child: widget.child,
                onHorizontalDragStart: (details) {
                  _horizontalSwipeStartingOffset = details.localPosition;
                },
                onHorizontalDragUpdate: (details) {
                  if (_horizontalSwipeStartingOffset.dx >
                      details.localPosition.dx) {
                    _isSwipeLeft = true;
                    _isSwipeRight = false;
                  } else {
                    _isSwipeRight = true;
                    _isSwipeLeft = false;
                  }
                },
                onHorizontalDragEnd: (details) {
                  if (_isSwipeLeft && widget.onSwipeLeft != null) {
                    widget.onSwipeLeft();
                  } else if (_isSwipeRight && widget.onSwipeRight != null) {
                    widget.onSwipeRight();
                  }
                },
              )
            : (widget.onSwipeDown != null || widget.onSwipeUp != null)
                ? GestureDetector(
                    child: widget.child,
                    onVerticalDragStart: (details) {
                      _verticalSwipeStartingOffset = details.localPosition;
                    },
                    onVerticalDragUpdate: (details) {
                      if (_verticalSwipeStartingOffset.dy >
                          details.localPosition.dy) {
                        _isSwipeUp = true;
                        _isSwipeDown = false;
                      } else {
                        _isSwipeDown = true;
                        _isSwipeUp = false;
                      }
                    },
                    onVerticalDragEnd: (details) {
                      if (_isSwipeUp && widget.onSwipeUp != null) {
                        widget.onSwipeUp();
                      } else if (_isSwipeDown && widget.onSwipeDown != null) {
                        widget.onSwipeDown();
                      }
                    },
                  )
                : SizedBox.shrink();
  }
}