资讯详情

flutter制作具有自定义导航栏的渐进式 Web 应用程序

child: Row(

children: [

Container(

height: 60.0,

width: 80.0,

child: Row(

children: [

AnimatedContainer(

duration: Duration(milliseconds: 475),

height: 35.0,

width: 5.0,

decoration: BoxDecoration(

color: widget.active ? Colors.white : Colors.transparent,

borderRadius: BorderRadius.only(

topRight: Radius.circular(10.0),

bottomRight: Radius.circular(10.0),

),

),

),

Padding(

padding: EdgeInsets.only(left: 30.0),

child: Icon(

widget.icon,

color: widget.active ? Colors.white : Colors.white54,

size: 19.0,

),

),

],

),

),

],

),

),

),

);

}

}

[]()让我们注意 - “仪表板”

========================================================================

在这种状态下,窗口的小部件可以帮助您保持宽高比并作为标签,SharedFilesItem,ProjectStatisticScards驱动程序小部件。

[](()Dashboard/Dashboard.dart

import ‘package:flutter/material.dart’;

import ‘package:flutter_vector_icons/flutter_vector_icons.dart’;

import ‘package:google_fonts/google_fonts.dart’;

import ‘package:percent_indicator/circular_percent_indicator.dart’;

import ‘package:praum_project_web_app/Dashboard/src/ProjectProgressCard.dart’;

import ‘package:praum_project_web_app/Dashboard/src/ProjectStatisticsCards.dart’;

import ‘package:praum_project_web_app/Dashboard/src/SharedFilesItem.dart’;

import ‘package:praum_project_web_app/Dashboard/src/SubHeader.dart’;

import ‘package:praum_project_web_app/Dashboard/src/Tabs.dart’;

class DashBoard extends StatelessWidget {

@override

Widget build(BuildContext context) {

return Positioned(

left: 100.0,

child: Container(

height: MediaQuery.of(context).size.height,

width: MediaQuery.of(context).size.width * 0.63,

color: Colors.white,

child: Column(

crossAxisAlignment: CrossAxisAlignment.start,

children: [

Container(

margin: EdgeInsets.only(left: 30.0, top: 25.0, bottom: 10.0),

child: Text(

‘Ongoing Projects’,

style: GoogleFonts.quicksand(

fontWeight: FontWeight.bold,

fontSize: 20.0,

),

),

),

Tabs(),

Container(

margin: EdgeInsets.only(top: 5.0),

height: 200.0,

width: MediaQuery.of(context).size.width * 0.62,

child: Row(

mainAxisAlignment: MainAxisAlignment.spaceEvenly,

crossAxisAlignment: CrossAxisAlignment.center,

children: [

ProjectProgressCard(

color: Color(0xffFF4C60),

projectName: ‘The Maptrix’,

percentComplete: ‘34%’,

progressIndicatorColor: Colors.redAccent[100],

icon: Feather.moon,

),

ProjectProgressCard(

color: Color(0xff6C6CE5),

projectName: ‘Delivery Club’,

percentComplete: ‘78%’,

progressIndicatorColor: Colors.blue[200],

icon: Feather.truck,

),

ProjectProgressCard(

color: Color(0xffFAAA1E),

projectName: ‘Travel Comrode’,

percentComplete: ‘82%’,

progressIndicatorColor: Colors.amber[200],

icon: Icons.local_airport,

),

],

),

),

SubHeader(

title: ‘Shared Files’,

),

SharedFilesItem(

color: Colors.blue,

sharedFileName: ‘Company Guidelines’,

members: ‘28 members’,

et: ‘10 Oct 2019’,

fileSize: ‘2.3 MB’,

),

SharedFilesItem(

color: Colors.amber,

sharedFileName: ‘Company Policy’,

members: ‘30 members’,

et: ‘27 Sep 2019’,

fileSize: ‘4.2 MB’,

),

SharedFilesItem(

color: Colors.red,

sharedFileName: ‘Wireframes’,

members: ‘14 members’,

et: ‘08 Oct 2019’,

fileSize: ‘1.6 MB’,

),

SubHeader(

title: ‘Project Statistics’,

),

ProjectStatisticsCards(),

],

),

),

);

}

}

我们正在使用这个小部件来获得不同颜色的项目名称的进度条。我们使用它 - “MouseRegion” - 更新小部件大小以使其看起来更好。

[](()Dashboard/src/ProjectProgressCard.dart

import ‘package:flutter/material.dart’;

import ‘package:flutter_vector_icons/flutter_vector_icons.dart’;

import ‘package:google_fonts/google_fonts.dart’;

class ProjectProgressCard extends StatefulWidget {

final Color color;

final Color progressIndicatorColor;

final String projectName;

final String percentComplete;

final IconData icon;

ProjectProgressCard({

this.color,

this.progressIndicatorColor,

this.percentComplete,

this.projectName,

this.icon,

});

@override

_ProjectProgressCardState createState() => _ProjectProgressCardState();

}

class _ProjectProgressCardState extends State {

bool hovered = false;

@override

Widget build(BuildContext context) {

return MouseRegion(

onEnter: (value) {

setState(() {

hovered = true;

});

},

onExit: (value) {

setState(() {

hovered = false;

});

},

child: AnimatedContainer(

duration: Duration(milliseconds: 275),

height: hovered ? 160.0 : 155.0,

width: hovered ? 200.0 : 195.0,

decoration: BoxDecoration(

color: hovered ? widget.color : Colors.white,

borderRadius: BorderRadius.circular(15.0),

boxShadow: [

BoxShadow(

color: Colors.black12,

blurRadius: 20.0,

spreadRadius: 5.0,

),

]),

child: Center(

child: Column(

children: [

SizedBox(

height: 20.0,

),

Row(

children: [

SizedBox(

width: 18.0,

),

Container(

height: 30.0,

width: 30.0,

child: Icon(

widget.icon,

color: !hovered ? Colors.white : Colors.black,

size: 16.0,

),

decoration: BoxDecoration(

borderRadius: BorderRadius.circular(30.0),

color: hovered ? Colors.white : Colors.black,

),

),

SizedBox(

width: 13.0,

),

Container(

child: Text(

widget.projectName,

style: GoogleFonts.quicksand(

fontWeight: FontWeight.w500,

fontSize: 14.0,

color: hovered ? Colors.white : Colors.black,

),

),

),

],

),

SizedBox(

height: 15.0,

),

Row(

children: [

SizedBox(

width: 18.0,

),

Container(

height: 13.0,

width: 13.0,

child: Icon(

Feather.user,

size: 13.0,

color: hovered ? Colors.white : Colors.black,

),

),

SizedBox(

width: 8.0,

),

Container(

child: Text(

‘5 members’,

style: GoogleFonts.quicksand(

fontWeight: FontWeight.w500,

fontSize: 10.0,

color: hovered ? Colors.white : Colors.black,

),

),

),

],

),

SizedBox(

height: 5.0,

),

Row(

children: [

SizedBox(

width: 18.0,

),

Container(

height: 13.0,

width: 13.0,

child: Icon(

Feather.clock,

size: 13.0,

color: hovered ? Colors.white : Colors.black,

),

),

SizedBox(

width: 8.0,

),

Container(

child: Text(

‘15 Nov 2019’,

style: GoogleFonts.quicksand(

fontWeight: FontWeight.w500,

fontSize: 10.0,

color: hovered ? Colors.white : Colors.black,

),

),

),

],

),

Container(

margin: EdgeInsets.only(top: 8.0, left: 135.0),

child: Text(

widget.percentComplete,

style: GoogleFonts.quicksand(

fontWeight: FontWeight.w500,

fontSize: 12.5,

color: hovered ? Colors.white : Colors.black,

),

),

),

AnimatedContainer(

duration: Duration(milliseconds: 275),

margin: EdgeInsets.only(top: 5.0),

height: 6.0,

width: 160.0,

decoration: BoxDecoration(

color: hovered

? widget.progressIndicatorColor
Color(0xffF5F6FA),

borderRadius: BorderRadius.circular(20.0),

),

child: Align(

alignment: Alignment.centerLeft,

child: AnimatedContainer(

duration: Duration(milliseconds: 275),

height: 6.0,

width:

(double.parse(widget.percentComplete.substring(0, 1)) /

160.0,

decoration: BoxDecoration(

color: hovered ? Colors.white : widget.color,

borderRadius: BorderRadius.circular(20.0),

),

),

),

),

],

),

),

),

);

}

}

这是共享文件部分,它在 Row() 中包含图标、文本和其他一些数据,正如您在给定代码中看到的那样,这非常简单

[](()Dashboard/src/SharedFileItem.dart

import ‘package:flutter/material.dart’;

import ‘package:google_fonts/google_fonts.dart’;

class SharedFilesItem extends StatefulWidget {

final String sharedFileName;

final Color color;

final String members;

final String et;

final String fileSize;

SharedFilesItem({

this.color,

this.et,

this.fileSize,

this.members,

this.sharedFileName,

});

@override

_SharedFilesItemState createState() => _SharedFilesItemState();

}

class _SharedFilesItemState extends State {

bool hovered = false;

@override

Widget build(BuildContext context) {

return MouseRegion(

onEnter: (value) {

setState(() {

hovered = true;

});

},

onExit: (value) {

setState(() {

hovered = false;

});

},

child: AnimatedContainer(

duration: Duration(milliseconds: 275),

margin: EdgeInsets.only(bottom: 10.0, left: 40.0, right: 15.0),

padding: EdgeInsets.all(10.0),

decoration: BoxDecoration(

color: Colors.white,

borderRadius: BorderRadius.circular(10.0),

boxShadow: hovered

? [

BoxShadow(

color: Colors.black12,

blurRadius: 13.0,

spreadRadius: 0.0,

),

]
[]),

child: Column(

children: [

Container(

child: Row(

mainAxisAlignment: MainAxisAlignment.spaceBetween,

children: [

Row(

children: [

SizedBox(

width: 15.0,

),

Container(

height: 28.0,

width: 28.0,

decoration: BoxDecoration(

color: widget.color.withOpacity(0.2),

borderRadius: BorderRadius.circular(5.0),

),

child: Center(

child: Icon(

Icons.folder,

color: widget.color,

size: 15.0,

),

),

),

SizedBox(

width: 15.0,

),

Text(

widget.sharedFileName,

style: GoogleFonts.quicksand(

fontWeight: FontWeight.bold,

fontSize: 12.0,

),

),

],

),

Row(

mainAxisAlignment: MainAxisAlignment.spaceAround,

children: [

Padding(

padding: EdgeInsets.symmetric(horizontal: 30.0),

child: Text(

widget.members,

style: GoogleFonts.quicksand(

fontWeight: FontWeight.bold,

fontSize: 11.0,

color: Colors.black45,

),

),

),

Padding(

padding: EdgeInsets.symmetric(horizontal: 30.0),

child: Text(

widget.et,

style: GoogleFonts.quicksand(

fontWeight: FontWeight.bold,

fontSize: 11.0,

color: Colors.black45,

),

),

),

Padding(

padding: EdgeInsets.symmetric(horizontal: 30.0),

child: Text(

widget.fileSize,

style: GoogleFonts.quicksand(

fontWeight: FontWeight.bold,

fontSize: 11.0,

color: Colors.black87,

),

),

),

],

),

],

),

),

],

),

),

);

}

}

共享文件下方的下一个是项目统计信息,它可以由圆角矩形容器创建,并创建一个包含文本 1、2、3 的列,并用 Row() 将其包裹起来,并添加如下所示的 ProgressIndicator,

[](()Dashboard/src/ProjectStatisticsCards.dart

import ‘package:flutter/material.dart’;

import ‘package:google_fonts/go ogle_fonts.dart’;

import ‘package:percent_indicator/circular_percent_indicator.dart’;

class ProjectStatisticsCards extends StatelessWidget {

@override

Widget build(BuildContext context) {

return Row(

children: [

ProjectStatisticsCard(

count: ‘125’,

name: ‘All finished projects’,

descriptions: ‘2 projects out of time’,

progress: 0.75,

progressString: ‘75%’,

color: Color(0xffFAAA1E),

),

ProjectStatisticsCard(

color: Color(0xff6C6CE5),

count: ‘1105’,

name: ‘Customer interest’,

descriptions: ‘+ 576 new clients’,

progress: 0.68,

progressString: ‘68%’,

),

],

);

}

}

class ProjectStatisticsCard extends StatelessWidget {

final String count;

final String name;

final String descriptions;

final double progress;

final String progressString;

final Color color;

ProjectStatisticsCard({

this.count,

this.descriptions,

this.name,

this.progress,

this.progressString,

this.color,

});

@override

Widget build(BuildContext context) {

return Expanded(

child: Container(

margin: EdgeInsets.only(left: 40.0, right: 20.0),

padding: EdgeInsets.symmetric(horizontal: 20.0),

height: 85.0,

decoration: BoxDecoration(

color: color,

borderRadius: BorderRadius.circular(8.0),

),

child: Row(

mainAxisAlignment: MainAxisAlignment.spaceBetween,

children: [

Container(

child: Column(

crossAxisAlignment: CrossAxisAlignment.start,

mainAxisAlignment: MainAxisAlignment.center,

children: [

Text(

count,

style: GoogleFonts.quicksand(

fontSize: 20.0,

fontWeight: FontWeight.bold,

color: Colors.white,

),

),

Text(

name,

style: GoogleFonts.quicksand(

fontSize: 13.0,

fontWeight: FontWeight.w500,

color: Colors.white,

),

),

SizedBox(

height: 8.0,

),

Text(

descriptions,

style: GoogleFonts.quicksand(

fontSize: 10.0,

color: Colors.white,

),

),

],

),

),

CircularPercentIndicator(

radius: 55.0,

lineWidth: 4.5,

percent: progress,

circularStrokeCap: CircularStrokeCap.round,

center: Text(

progressString,

style: GoogleFonts.quicksand(

fontSize: 13.0,

fontWeight: FontWeight.w700,

color: Colors.white,

),

),

progressColor: Colors.white,

startAngle: 270,

backgroundColor: Colors.white54,

),

],

),

),

);

}

}

我们已经放下了将在 SubHeader() 组件中完成的每个部分的标题。我们需要用两个 Text 小部件实现一个 Row()。

我们需要使 mainAxisAlignment - SpacedBetween 和 CrossAxisAlignment - Center

[](()Dashboard/src/SubHeader.dart

import ‘package:flutter/material.dart’;

import ‘package:google_fonts/google_fonts.dart’;

class SubHeader extends StatelessWidget {

final String title;

SubHeader({

this.title,

});

@override

Widget build(BuildContext context) {

return Container(

margin: EdgeInsets.only(

left: 30.0,

right: 30.0,

top: 5.0,

bottom: 15.0,

),

child: Row(

mainAxisAlignment: MainAxisAlignment.spaceBetween,

crossAxisAlignment: CrossAxisAlignment.center,

children: [

Text(

title,

style: GoogleFonts.quicksand(

fontWeight: FontWeight.bold,

fontSize: 14.0,

),

),

Text(

‘View All’,

style: GoogleFonts.quicksand(

fontWeight: FontWeight.bold,

fontSize: 10.0,

color: Colors.black45,

),

),

],

),

);

}

}

最后,我们可以完成中间部分或 DashBoard ,标签命名为 - “全部”、“当前”、“待定”和“已分类”。这与往常一样带有 4 个文本小部件的行。

[](()Dashboard/src/Tabs.dart

import ‘package:flutter/material.dart’;

import ‘package:google_fonts/google_fonts.dart’;

class Tabs extends StatelessWidget {

@override

Widget build(BuildContext context) {

return Container(

margin: EdgeInsets.only(left: 32.0),

child: Row(

children: [

Text(

‘All’,

style: GoogleFonts.quicksand(

fontSize: 12.0,

),

),

SizedBox(

width: 15.0,

),

Container(

height: 25.0,

width: 70.0,

decoration: BoxDecoration(

color: Colors.black,

borderRadius: BorderRadius.circular(20.0),

),

child: Center(

child: Text(

‘Current’,

style: GoogleFonts.quicksand(

fontSize: 12.0,

color: Colors.white,

),

),

),

),

SizedBox(

width: 15.0,

),

Text(

‘Pending’,

style: GoogleFonts.quicksand(

fontSize: 12.0,

),

),

SizedBox(

width: 15.0,

),

Text(

‘Categorized’,

style: GoogleFonts.quicksand(

fontSize: 12.0,

),

),

],

),

);

}

}

[](()使用“CalenderSpace”完成 webApp

=====================================================================================

让我们为日历部分创建一个驱动程序代码,其中一个 Column 包含三个有状态小部件,即

TopContainer()

CalendarSection()、

MeetingsSection()、

[](()CalenderSpace/CalenderSpace.dart

import ‘package:flutter/material.dart’;

import ‘package:praum_project_web_app/CalendarSpace/src/CalendarSection.dart’;

import ‘package:praum_project_web_app/CalendarSpace/src/MeetingsSection.dart’;

import ‘package:praum_project_web_app/CalendarSpace/src/TopContainer.dart’;

class CalendarSpace extends StatelessWidget {

@override

Widget build(BuildContext context) {

return Align(

alignment: Alignment.centerRight,

child: Container(

color: Color(0xffF7F7FF),

height: MediaQuery.of(context).size.height,

width: MediaQuery.of(context).size.width * 0.28,

child: Column(

children: [

SizedBox(

height: 30.0,

),

TopContainer(),

CalendarSection(),

MeetingsSection(),

ClipRRect(

child: Image.asset(‘assets/image.png’,height: 300.0,width: 400.0,),

),

],

),

),

);

}

}

像我一样为周名和日期创建一个两个列表,然后创建一个容器(四舍五入),将这两个列表保存为一个列()。使阴影看起来不错

[](()CalenderSpace/src/CalendarPellet .dart

import ‘package:flutter/material.dart’;

import ‘package:google_fonts/google_fonts.dart’;

List dates = [21, 22, 23, 24, 25, 26, 27];

List days = [‘M’, ‘T’, ‘W’, ‘T’, ‘F’, ‘S’, ‘S’];

class CalendarPellet extends StatelessWidget {

final int date;

final String day;

CalendarPellet({

this.date,

this.day,

});

@override

Widget build(BuildContext context) {

return Container(

height: 45.0,

width: 25.0,

margin: EdgeInsets.symmetric(horizontal: 5.0),

decoration: BoxDecoration(

color: (date == 24) ? Colors.amber : Colors.white,

borderRadius: BorderRadius.circular(20.0),

boxShadow: [

BoxShadow(

blurRadius: 7.5,

spreadRadius: 1.0,

color: Colors.black12,

),

]),

child: Column(

mainAxisAlignment: MainAxisAlignment.center,

children: [

Text(

date.toString(),

style: GoogleFonts.quicksand(

fontSize: 11.0,

fontWeight: FontWeight.w600,

color: (date == 24) ? Colors.white : Colors.black,

),

),

SizedBox(

height: 2.0,

),

Text(

day,

style: GoogleFonts.quicksand(

fontSize: 11.0,

fontWeight: FontWeight.w600,

color: (date == 24) ? Colors.white : Colors.black38,

),

),

],

标签: 高压电阻器5w500m

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