Flutter质感设计之进度条

import 'package:flutter/material.dart';class ActionViewEcology extends StatelessWidget { /*  * 构建函数，传递参数  * 最大能量值  * 最大饥饿值  * 最大情绪值  * 当前能量值  * 当前饥饿值  * 当前情绪值  */ ActionViewEcology({  this.maximumEmergy,  this.maximumHunger,  this.maximumMood,  this.currentEmergy,  this.currentHunger,  this.currentMood, }); int maximumEmergy; int maximumHunger; int maximumMood; int currentEmergy; int currentHunger; int currentMood; // 获取进度条描述文本 Align _getNameText(BuildContext context, String text) {  return new Align(   alignment: FractionalOffset.topLeft,   child: new Text(    text,    style: new TextStyle(     fontSize: 15.0,     color: Colors.black,     height: 1.5,    )   )  ); } @override Widget build(BuildContext context) {  return new Container(   margin: const EdgeInsets.fromLTRB(17.0, 0.0, 17.0, 10.0),   child: new Column(    children: <Widget> [     _getNameText(context, '能量（$currentEmergy/$maximumEmergy）'),     new LinearProgressIndicator(value: currentEmergy/maximumEmergy),     _getNameText(context, '饥饿（$currentHunger/$maximumHunger）'),     new LinearProgressIndicator(value: currentHunger/maximumHunger),     _getNameText(context, '心情（$currentMood/$maximumMood）'),     new LinearProgressIndicator(value: currentMood/maximumMood),    ]   )  ); }}