spring_button 1.0.7

A simple widget for having child widgets that respond to gestures with a spring animation.

example/lib/main.dart

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// © Cosmos Software | Ali Yigit Bireroglu                                                                                                           /
// All material used in the making of this code, project, program, application, software et cetera (the "Intellectual Property")                     /
// belongs completely and solely to Ali Yigit Bireroglu. This includes but is not limited to the source code, the multimedia and                     /
// other asset files. If you were granted this Intellectual Property for personal use, you are obligated to include this copyright                   /
// text at all times.                                                                                                                                /
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import 'dart:async';

import 'package:flutter/foundation.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:spring_button/spring_button.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Image Sequence Animator Demo',
      theme: ThemeData(primarySwatch: Colors.blue),
      home: MyHomePage(title: 'Image Sequence Animator Demo'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

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

class _MyHomePageState extends State<MyHomePage> {
  Timer timer;
  int counter = 0;

  void incrementCounter() {
    setState(() {
      counter++;
    });
  }

  void decrementCounter() {
    setState(() {
      counter--;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text(widget.title)),
      body: Column(
        children: [
          Expanded(
            flex: 4,
            child: Center(
              child: Text(
                counter.toString(),
                textAlign: TextAlign.center,
              ),
            ),
          ),
          Expanded(
            flex: 1,
            child: SpringButton(
              SpringButtonType.OnlyScale,
              normalRow(
                "Increment",
                Colors.deepPurpleAccent,
              ),
              onTapDown: (_) => incrementCounter(),
              onLongPress: () => timer = Timer.periodic(
                const Duration(milliseconds: 100),
                (Timer timer) => incrementCounter(),
              ),
              onLongPressEnd: (_) {
                timer?.cancel();
              },
            ),
          ),
          Expanded(
            flex: 1,
            child: SpringButton(
              SpringButtonType.OnlyScale,
              normalRow(
                "Decrement",
                Colors.redAccent,
              ),
              onTapDown: (_) => decrementCounter(),
              onLongPress: () => timer = Timer.periodic(
                const Duration(milliseconds: 100),
                (Timer timer) => decrementCounter(),
              ),
              onLongPressEnd: (_) {
                timer?.cancel();
              },
            ),
          ),
        ],
      ),
    );
  }
}

Widget normalRow(String text, Color color) {
  return Padding(
    padding: EdgeInsets.all(12.5),
    child: Container(
      decoration: BoxDecoration(
        color: color,
        borderRadius: const BorderRadius.all(const Radius.circular(10.0)),
      ),
      child: Center(
        child: Text(
          text,
          style: const TextStyle(
            color: Colors.white,
            fontWeight: FontWeight.bold,
            fontSize: 12.5,
          ),
        ),
      ),
    ),
  );
}