swipe_cards 0.0.2

Tinder like swipe cards.

swipe_cards

A Flutter widget for Tinder like swipe cards. The card can be swiped right, left and up for different responses. Currently it supports the following responses:

• Right swipe for like
• Left swipe for nope
• Up swipe for superlike

Install

To install the package, add the following dependency to your pubspec.yaml

dependencies:
  swipe_cards: ^0.0.2

Usage

Basic

import 'package:swipe_cards/swipe_cards.dart';

SwipeCards(
            matchEngine: <MatchEngine>,
            itemBuilder: (BuildContext context, int index) {},
            onStackFinished: () {}
);

Attributes of SwipeCards

Key	Description
matchEngine	An instance of MatchEngine that acts as controller for trigerring swipes manually.
itemBuilder	A function that returns the view inside a swipe card.
onStackFinished	A function that is triggered as soon as all the cards have been swiped.

MatchEngine

MatchEngine is the controller for the swipe cards. It takes swipeItems as an argument and is used to trigger the swipes manually, for example on button press. The data type of swipeItems is List<SwipeItem>.

MatchEngine(swipeItems: List<SwipeItem>);

SwipeItem

SwipeItem contains the actual data that can be rendered in the swipe card. Actually it is a wrapper over any dynamic object and just adds the functionality of like, nope and superlike to that object.

SwipeItem(
            content: "Anup Kumar Panwar",
            likeAction: () {
                log("Like");
            },
            nopeAction: () {
                log("Nope");
            },
            superlikeAction: () {
                log("Superlike");
            }
);

Attributes of SwipeItem

Key	Description
content	An object that contains the actual data to be rendered in the swipe card.
likeAction	A function that is triggered when the card is liked.
nopeAction	A function that is triggered when the card is not liked / swiped left.
superlikeAction	A function that is triggered when the card is superliked.

Example

List<SwipeItem> _swipeItems = List<SwipeItem>();
  MatchEngine _matchEngine;
  GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey();
  List<String> _names = ["Red", "Blue", "Green", "Yellow", "Orange"];
  List<Color> _colors = [
    Colors.red,
    Colors.blue,
    Colors.green,
    Colors.yellow,
    Colors.orange
  ];

  @override
  void initState() {
    for (int i = 0; i < _names.length; i++) {
      _swipeItems.add(SwipeItem(
          content: Content(text: _names[i], color: _colors[i]),
          likeAction: () {
            _scaffoldKey.currentState.showSnackBar(SnackBar(
              content: Text("Liked ${_names[i]}"),
              duration: Duration(milliseconds: 500),
            ));
          },
          nopeAction: () {
            _scaffoldKey.currentState.showSnackBar(SnackBar(
              content: Text("Nope ${_names[i]}"),
              duration: Duration(milliseconds: 500),
            ));
          },
          superlikeAction: () {
            _scaffoldKey.currentState.showSnackBar(SnackBar(
              content: Text("Superliked ${_names[i]}"),
              duration: Duration(milliseconds: 500),
            ));
          }));
    }

    _matchEngine = MatchEngine(swipeItems: _swipeItems);
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        key: _scaffoldKey,
        appBar: AppBar(
          title: Text(widget.title),
        ),
        body: Container(
            child: Column(children: [
          Container(
            height: 550,
            child: SwipeCards(
              matchEngine: _matchEngine,
              itemBuilder: (BuildContext context, int index) {
                return Container(
                  alignment: Alignment.center,
                  color: _swipeItems[index].content.color,
                  child: Text(
                    _swipeItems[index].content.text,
                    style: TextStyle(fontSize: 100),
                  ),
                );
                  },
                  onStackFinished: () {
                    _scaffoldKey.currentState.showSnackBar(SnackBar(
                      content: Text("Stack Finished"),
                      duration: Duration(milliseconds: 500),
                    ));
                  },
                ),
              ),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: [
                  RaisedButton(
                      onPressed: () {
                        _matchEngine.currentItem.nope();
                      },
                      child: Text("Nope")),
                  RaisedButton(
                      onPressed: () {
                        _matchEngine.currentItem.superLike();
                      },
                      child: Text("Superlike")),
                  RaisedButton(
                      onPressed: () {
                        _matchEngine.currentItem.like();
                      },
                      child: Text("Like"))
                ],
              )
            ])));
  }

Screenshot