flutter pub add percent_indicator基于插件公开信息、社区数据与项目使用情况整理的选型参考。
percent_indicator 包为 Flutter 应用程序提供可自定义的进度控件，支持圆形和线性设计。它使开发者能够基于百分比值直观地表示进度，并提供丰富的自定义选项，包括颜色、线条粗细和标签。适用于加载指示器、任务完成显示或任何需要直观进度反馈的场景。该库轻量且兼容所有主要平台，包括移动设备、网页和桌面端。
以下为关联源码仓库的 README 原文快照，最新内容请访问源码仓库。
Circular, Linear and Multi-segment linear percent indicators
You should ensure that you add the router as a dependency in your flutter project.
dependencies:
percent_indicator: ^4.2.5
You should then run flutter packages upgrade or update your packages in IntelliJ.
There is a example project in the example folder. Check it out. Otherwise, keep reading to get up and running.
Need to include the import the package to the dart file where it will be used, use the below command,
import 'package:percent_indicator/percent_indicator.dart';
Circular percent indicator
Basic Widget
new CircularPercentIndicator(
radius: 60.0,
lineWidth: 5.0,
percent: 1.0,
center: new Text("100%"),
progressColor: Colors.green,
)
Complete example
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: new AppBar(
title: new Text("Circular Percent Indicators"),
),
body: Center(
child: ListView(
children: <Widget>[
new CircularPercentIndicator(
radius: 100.0,
lineWidth: 10.0,
percent: 0.8,
header: new Text("Icon header"),
center: new Icon(
Icons.person_pin,
size: 50.0,
color: Colors.blue,
),
backgroundColor: Colors.grey,
progressColor: Colors.blue,
),
new CircularPercentIndicator(
radius: 130.0,
animation: true,
animationDuration: 1200,
lineWidth: 15.0,
percent: 0.4,
center: new Text(
"40 hours",
style:
new TextStyle(fontWeight: FontWeight.bold, fontSize: 20.0),
),
circularStrokeCap: CircularStrokeCap.butt,
backgroundColor: Colors.yellow,
progressColor: Colors.red,
),
new CircularPercentIndicator(
radius: 120.0,
lineWidth: 13.0,
animation: true,
percent: 0.7,
center: new Text(
"70.0%",
style:
new TextStyle(fontWeight: FontWeight.bold, fontSize: 20.0),
),
footer: new Text(
"Sales this week",
style:
new TextStyle(fontWeight: FontWeight.bold, fontSize: 17.0),
),
circularStrokeCap: CircularStrokeCap.round,
progressColor: Colors.purple,
),
Padding(
padding: EdgeInsets.all(15.0),
child: new CircularPercentIndicator(
radius: 60.0,
lineWidth: 5.0,
percent: 1.0,
center: new Text("100%"),
progressColor: Colors.green,
),
),
Container(
padding: EdgeInsets.all(15.0),
child: new Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
new CircularPercentIndicator(
radius: 45.0,
lineWidth: 4.0,
percent: 0.10,
center: new Text("10%"),
progressColor: Colors.red,
),
new Padding(
padding: EdgeInsets.symmetric(horizontal: 10.0),
),
new CircularPercentIndicator(
radius: 45.0,
lineWidth: 4.0,
percent: 0.30,
center: new Text("30%"),
progressColor: Colors.orange,
),
new Padding(
padding: EdgeInsets.symmetric(horizontal: 10.0),
),
new CircularPercentIndicator(
radius: 45.0,
lineWidth: 4.0,
percent: 0.60,
center: new Text("60%"),
progressColor: Colors.yellow,
),
new Padding(
padding: EdgeInsets.symmetric(horizontal: 10.0),
),
new CircularPercentIndicator(
radius: 45.0,
lineWidth: 4.0,
percent: 0.90,
center: new Text("90%"),
progressColor: Colors.green,
)
],
),
)
]),
),
);
}
Linear percent indicator
Basic Widget
new LinearPercentIndicator(
width: 140.0,
lineHeight: 14.0,
percent: 0.5,
backgroundColor: Colors.grey,
progressColor: Colors.blue,
),
Complete example
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: new AppBar(
title: new Text("Linear Percent Indicators"),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Padding(
padding: EdgeInsets.all(15.0),
child: new LinearPercentIndicator(
width: 140.0,
lineHeight: 14.0,
percent: 0.5,
center: Text(
"50.0%",
style: new TextStyle(fontSize: 12.0),
),
trailing: Icon(Icons.mood),
linearStrokeCap: LinearStrokeCap.roundAll,
backgroundColor: Colors.grey,
progressColor: Colors.blue,
),
),
Padding(
padding: EdgeInsets.all(15.0),
child: new LinearPercentIndicator(
width: 170.0,
animation: true,
animationDuration: 1000,
lineHeight: 20.0,
leading: new Text("left content"),
trailing: new Text("right content"),
percent: 0.2,
center: Text("20.0%"),
linearStrokeCap: LinearStrokeCap.butt,
progressColor: Colors.red,
),
),
Padding(
padding: EdgeInsets.all(15.0),
child: new LinearPercentIndicator(
width: MediaQuery.of(context).size.width - 50,
animation: true,
lineHeight: 20.0,
animationDuration: 2000,
percent: 0.9,
center: Text("90.0%"),
linearStrokeCap: LinearStrokeCap.roundAll,
progressColor: Colors.greenAccent,
),
),
Padding(
padding: EdgeInsets.all(15.0),
child: new LinearPercentIndicator(
width: MediaQuery.of(context).size.width - 50,
animation: true,
lineHeight: 20.0,
animationDuration: 2500,
percent: 0.8,
center: Text("80.0%"),
linearStrokeCap: LinearStrokeCap.roundAll,
progressColor: Colors.green,
),
),
Padding(
padding: EdgeInsets.all(15.0),
child: Column(
children: <Widget>[
new LinearPercentIndicator(
width: 100.0,
lineHeight: 8.0,
percent: 0.2,
progressColor: Colors.red,
),
new LinearPercentIndicator(
width: 100.0,
lineHeight: 8.0,
percent: 0.5,
progressColor: Colors.orange,
),
new LinearPercentIndicator(
width: 100.0,
lineHeight: 8.0,
percent: 0.9,
progressColor: Colors.blue,
)
],
),
),
],
),
),
);
}
Multi-segment linear indicator
Basic Widget
new MultiSegmentLinearIndicator(
width: MediaQuery.of(context).size.width - 64,
lineHeight: 30.0,
segments: [
SegmentLinearIndicator(
percent: 0.25,
color: Color(0xFF4285F4),
enableStripes: true,
),
SegmentLinearIndicator(
percent: 0.4,
color: Color(0xFF6DD5F6),
),
SegmentLinearIndicator(
percent: 0.35,
color: Color(0xFFEFEFEF),
),
],
barRadius: Radius.circular(10.0),
animation: true,
animationDuration: 1000,
curve: Curves.easeInOut,
animateFromLastPercent: true,
onAnimationEnd: () {
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(
content: Text('Animation completed!'),
duration: Duration(seconds: 1),
),
);
},
),
Complete example
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('Multi Segment Progress'),
),
body: Center(
child: Padding(
padding: const EdgeInsets.all(20.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
MultiSegmentLinearIndicator(
width: MediaQuery.of(context).size.width - 64,
lineHeight: 30.0,
segments: [
SegmentLinearIndicator(
percent: 0.25,
color: Color(0xFF4285F4),
enableStripes: true,
),
SegmentLinearIndicator(
percent: 0.4,
color: Color(0xFF6DD5F6),
),
SegmentLinearIndicator(
percent: 0.35,
color: Color(0xFFEFEFEF),
),
],
barRadius: Radius.circular(10.0),
animation: true,
animationDuration: 1000,
curve: Curves.easeInOut,
animateFromLastPercent: true,
onAnimationEnd: () {
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(
content: Text('Animation completed!'),
duration: Duration(seconds: 1),
),
);
},
),
SizedBox(height: 10),
Text(
'Static with easeInOut: 25% - 40% - 35%',
style: TextStyle(fontSize: 16),
),
SizedBox(height: 30),
MultiSegmentLinearIndicator(
width: MediaQuery.of(context).size.width - 40,
lineHeight: 20.0,
segments: [
SegmentLinearIndicator(
percent: 0.3,
color: Color(0xFFBA0521),
),
SegmentLinearIndicator(
percent: 0.4,
color: Color(0xFF071437),
enableStripes: true,
),
SegmentLinearIndicator(
percent: 0.3,
color: Color(0xFFFF9205),
),
],
barRadius: Radius.circular(20),
),
SizedBox(height: 10),
Text(
'Static: 30% - 40% - 30%',
style: TextStyle(fontSize: 16),
),
SizedBox(height: 30),
MultiSegmentLinearIndicator(
width: MediaQuery.of(context).size.width - 40,
lineHeight: 20.0,
segments: [
SegmentLinearIndicator(
percent: firstSegment,
color: Colors.green,
enableStripes: true,
),
SegmentLinearIndicator(
percent: secondSegment,
color: Colors.blue,
enableStripes: true,
),
SegmentLinearIndicator(
percent: thirdSegment,
color: Colors.orange,
),
],
animation: true,
animateFromLastPercent: true,
animationDuration: 1000,
curve: Curves.easeInOut,
barRadius: Radius.circular(10),
),
SizedBox(height: 10),
Text(
'Progress: ${(firstSegment * 100).toInt()}% - ${(secondSegment * 100).toInt()}% - ${(thirdSegment * 100).toInt()}%',
style: TextStyle(fontSize: 16),
),
SizedBox(height: 30),
MultiSegmentLinearIndicator(
width: MediaQuery.of(context).size.width - 64,
lineHeight: 30.0,
segments: [
SegmentLinearIndicator(
percent: 0.15,
color: Color(0xFFBA0521),
enableStripes: true,
),
SegmentLinearIndicator(
percent: 0.4, color: Color(0xFFAEFAB00)),
SegmentLinearIndicator(
percent: 0.45, color: Color(0xFFEFEFEF)),
],
animation: true,
animationDuration: 1000,
curve: Curves.decelerate,
animateFromLastPercent: true,
),
SizedBox(height: 10),
Text(
'Static with decelerate: 25% - 40% - 35%',
style: TextStyle(fontSize: 16),
),
SizedBox(height: 30),
],
),
),
),
);
}
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