number_wheel 0.0.6

一个数字跳动效果的text widget小部件，支持金额千分位。

example/lib/main.dart

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

import 'dart:math';

import 'package:number_wheel/number_wheel_animation.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  StreamController<String> _streamController;

  @override
  void initState() {
    super.initState();
    _streamController = StreamController<String>();
    // Future.delayed(Duration(milliseconds: 350), () {
    //   _sendNext();
    // });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        backgroundColor: Colors.black,
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Center(
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.center,
            mainAxisAlignment: MainAxisAlignment.start,
            children: [
              SizedBox(
                height: 80,
              ),
              HSYNumberWheelText(
                text: '2323.43',
                mainAxisAlignment: MainAxisAlignment.center,
                // animatedFirst: false,
                onAnimation: (String old) {
                  return _streamController;
                },
                textHeights: 50.0,
                textStyle: TextStyle(
                  color: Colors.white,
                  fontSize: 24,
                ),
              ),
              SizedBox(
                height: 80,
              ),
              GestureDetector(
                child: Container(
                  alignment: Alignment.center,
                  child: Text('clicke me'),
                  color: Colors.amber,
                  width: 100,
                  height: 100,
                ),
                onTap: () {
                  _sendNext();
                },
              ),
            ],
          ),
        ),
      ),
    );
  }

  void _sendNext() {
    num next = (Random().nextInt(1000)).toDouble() +
        (Random().nextDouble().toDouble());
    _streamController.sink.add(next.toString());
  }
}