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A customizable button widget that can be triggered by swiping.

example/lib/main.dart

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

void main() => runApp(const SwipeableButtonExample1());

@immutable
class SwipeableButtonExample1 extends StatelessWidget {
  const SwipeableButtonExample1({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) => const MaterialApp(
        home: SwipeableButtonExample1HomePage(),
      );
}

@immutable
class SwipeableButtonExample1HomePage extends StatelessWidget {
  const SwipeableButtonExample1HomePage({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) => Scaffold(
        appBar: AppBar(
          title: const Text("Swipeable Button Example"),
        ),
        body: Center(
          child: SizedBox(
            width: 300.0,
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: <Widget>[
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: SwipeableButton.simple(
                      label: const Center(
                          child: Text("Simple blue button",
                              style: TextStyle(
                                  color: Colors.white, fontSize: 16.0))),
                      color: Colors.blue.shade400,
                      thumbColor: Colors.blue.shade800,
                      onSwipe: () {
                        ScaffoldMessenger.of(context)
                            .showSnackBar(const SnackBar(
                          content: Text("Thank you for swiping!"),
                        ));
                      }),
                ),
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: SwipeableButton.simple(
                      label: const Center(
                          child: Text("Simple red button",
                              style: TextStyle(
                                  color: Colors.white, fontSize: 16.0))),
                      color: Colors.red.shade400,
                      thumbColor: Colors.red.shade800,
                      onSwipe: () {
                        ScaffoldMessenger.of(context)
                            .showSnackBar(const SnackBar(
                          content: Text("Thank you for swiping!"),
                        ));
                      }),
                ),
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: SwipeableButton(
                      label: const Center(
                          child: Text("Red to green thumb",
                              style: TextStyle(
                                  color: Colors.white, fontSize: 16.0))),
                      color: Colors.blue.shade400,
                      thumbBuilder: (BuildContext context,
                              double swipedFraction, bool isComplete) =>
                          SwipeableButtonSimpleThumb(
                            color: Color.lerp(
                                    Colors.red, Colors.green, swipedFraction) ??
                                Colors.red,
                            iconColor: Colors.black,
                            minWidth: 40.0,
                            isComplete: isComplete,
                          ),
                      onSwipe: () {
                        ScaffoldMessenger.of(context)
                            .showSnackBar(const SnackBar(
                          content: Text("Thank you for swiping!"),
                        ));
                      }),
                ),
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: SwipeableButton.simpleSlidable(
                      label: const Center(
                          child: Text("Slidable blue button",
                              style: TextStyle(
                                  color: Colors.white, fontSize: 16.0))),
                      color: Colors.blue.shade400,
                      thumbColor: Colors.blue.shade800,
                      onSwipe: () {
                        ScaffoldMessenger.of(context)
                            .showSnackBar(const SnackBar(
                          content: Text("Thank you for swiping!"),
                        ));
                      }),
                ),
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: SwipeableButton.simpleSlidable(
                      label: const Center(
                          child: Text("Slidable red button",
                              style: TextStyle(
                                  color: Colors.white, fontSize: 16.0))),
                      height: 40.0,
                      minThumbWidth: 40.0,
                      oneTime: true,
                      color: Colors.red.shade400,
                      thumbColor: Colors.red.shade800,
                      borderRadius: BorderRadius.circular(5.0),
                      onSwipe: () {
                        ScaffoldMessenger.of(context)
                            .showSnackBar(const SnackBar(
                          content: Text("Thank you for swiping!"),
                        ));
                      }),
                ),
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: SwipeableButton(
                      label: const Center(
                          child: Text("Custom thumb",
                              style: TextStyle(
                                  color: Colors.white, fontSize: 16.0))),
                      color: Colors.blue.shade400,
                      minThumbWidth: 40.0,
                      thumbBuilder: (BuildContext context,
                              double swipedFraction, bool isComplete) =>
                          Padding(
                            padding: const EdgeInsets.all(2.0),
                            child: DecoratedBox(
                              decoration: BoxDecoration(
                                  color: swipedFraction < 0.5
                                      ? Color.lerp(Colors.red, Colors.yellow,
                                          2.0 * swipedFraction)
                                      : Color.lerp(Colors.yellow, Colors.green,
                                          2.0 * swipedFraction - 1.0),
                                  borderRadius: BorderRadius.circular(16.0)),
                              child: Row(
                                mainAxisAlignment: MainAxisAlignment.end,
                                children: <Widget>[
                                  SizedBox(
                                    width: 36.0,
                                    child: isComplete
                                        ? const Icon(
                                            Icons.sentiment_very_satisfied,
                                            color: Colors.white)
                                        : const Icon(
                                            Icons.sentiment_very_dissatisfied,
                                            color: Colors.white),
                                  ),
                                ],
                              ),
                            ),
                          ),
                      onSwipe: () {
                        ScaffoldMessenger.of(context)
                            .showSnackBar(const SnackBar(
                          content: Text("Thank you for swiping!"),
                        ));
                      }),
                ),
              ],
            ),
          ),
        ),
      );
}
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Publisher

verified publisheromnicron.it

A customizable button widget that can be triggered by swiping.

Repository (GitHub)
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Documentation

API reference

License

MIT (LICENSE)

Dependencies

flutter

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