在本教程中，我将向您展示如何使用 Flutter 构建 Facebook Clone UI，因此这里是源代码。
该项目将需要许多文件，一个用于应用程序，3 个用于某些自定义小部件，因此请确保为每个组件创建一个文件
main.dart
import 'package:bttom_sheet/actionbtn.dart';
import 'package:bttom_sheet/feedbox.dart';
import 'package:bttom_sheet/storytile.dart';
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
//i'm going to disable the debug banner
debugShowCheckedModeBanner: false,
home: HomePage(),
);
}
}
class HomePage extends StatefulWidget {
@override
_HomePageState createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
//Let's add the color code for our project
Color bgBlack = Color(0xFF1a1a1a);
Color mainBlack = Color(0xFF262626);
Color fbBlue = Color(0xFF2D88FF);
Color mainGrey = Color(0xFF505050);
//Here I'm going to import a list of images that we will use for the profile picture and the storys
List<String> avatarUrl = [
"https://images.unsplash.com/photo-1518806118471-f28b20a1d79d?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=700&q=80",
"https://images.unsplash.com/photo-1457449940276-e8deed18bfff?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=500&q=60",
"https://images.unsplash.com/photo-1522075469751-3a6694fb2f61?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=800&q=80",
"https://images.unsplash.com/photo-1525879000488-bff3b1c387cf?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=634&q=80",
];
List<String> storyUrl = [
"https://images.unsplash.com/photo-1600055882386-5d18b02a0d51?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=621&q=80",
"https://images.unsplash.com/photo-1600174297956-c6d4d9998f14?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=634&q=80",
"https://images.unsplash.com/photo-1600008646149-eb8835bd979d?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=666&q=80",
"https://images.unsplash.com/photo-1502920313556-c0bbbcd00403?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=967&q=80",
];
@override
Widget build(BuildContext context) {
return Scaffold(
//let's add the bg color
backgroundColor: bgBlack,
//let's add the app bar
appBar: AppBar(
elevation: 0.0,
backgroundColor: mainBlack,
title: Text(
"Facebook",
style: TextStyle(
color: fbBlue,
),
),
//Now let's add the action button
actions: [
IconButton(
onPressed: () {},
icon: Icon(Icons.search),
),
IconButton(
onPressed: () {},
icon: Icon(Icons.menu),
),
],
),
//Now let's work on the body
body: SingleChildScrollView(
child: Padding(
padding: EdgeInsets.all(8.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.center,
children: [
//First of all we need to creat the post editor
Container(
width: double.infinity,
decoration: BoxDecoration(
color: mainBlack,
borderRadius: BorderRadius.circular(12.0),
),
child: Padding(
padding: const EdgeInsets.symmetric(
horizontal: 8.0, vertical: 10.0),
child: Column(
children: [
Row(
children: [
CircleAvatar(
radius: 25.0,
backgroundImage: NetworkImage(avatarUrl[0]),
),
SizedBox(
width: 10.0,
),
Expanded(
child: TextField(
style: TextStyle(
color: Colors.white,
),
decoration: InputDecoration(
contentPadding: EdgeInsets.only(left: 25.0),
hintText: "Post something...",
filled: true,
fillColor: mainGrey,
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(30.0),
borderSide: BorderSide.none,
)),
),
),
],
),
SizedBox(
height: 5.0,
),
Divider(
color: mainGrey,
thickness: 1.5,
),
//Now we will create a Row of three button
Row(
children: [
actionButton(
Icons.live_tv, "Live", Color(0xFFF23E5C)),
actionButton(
Icons.image, "Picture", Color(0xFF58C472)),
actionButton(Icons.insert_emoticon, "Activity",
Color(0xFFF8C03E)),
],
)
],
),
),
),
//We have finished the Post editor now let's create
//the story's timeline
// let's first create a new file for the custom widget
//now let's buil the container
SizedBox(
height: 10.0,
),
Container(
height: 160.0,
width: double.infinity,
child: ListView(
scrollDirection: Axis.horizontal,
children: [
storyTile(avatarUrl[0], storyUrl[0], "Ling chang"),
storyTile(avatarUrl[1], storyUrl[1], "Ling chang"),
storyTile(avatarUrl[2], storyUrl[2], "Ling chang"),
],
),
),
SizedBox(
height: 20.0,
),
//Now let's create the news feed
//first we will make the custom container of the feed
//Ok let's test our widget
feedBox(avatarUrl[0], "Doctor code", "6 min",
"I just wrote something", ""),
feedBox(avatarUrl[1], "Joseph Joestar", "6 min",
"It's pretty good I like it", storyUrl[2]),
feedBox(avatarUrl[2], "Giorno giovana", "Yesterday",
"I'm Giorno Giovana and I have a Dream", storyUrl[1]),
],
),
),
),
);
}
}actionbtn.dart
//Now i'm going to make a custom button for the different action like the comment button, share ...
import 'package:flutter/material.dart';
//the button wil take 3 parameter : the icon , the action title and the color of the icon
Widget actionButton(IconData icon, String actionTitle, Color iconColor) {
return Expanded(
child: FlatButton.icon(
onPressed: () {},
icon: Icon(
icon,
color: iconColor,
),
label: Text(
actionTitle,
style: TextStyle(
color: Colors.white,
),
),
),
);
}storytile.dart
//here we will make our story tile
import 'package:flutter/material.dart';
//the story tile will have 3 parameter
// the avatar url, the story image url and the user name
//I forgot to add some margin between the tiles
Widget storyTile(String avatarUrl, String storyUrl, String userName) {
return Container(
margin: EdgeInsets.only(right: 20.0),
height: 144.0,
width: 120.0,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(12.0),
image: DecorationImage(
image: NetworkImage(storyUrl),
fit: BoxFit.cover,
)),
child: Padding(
padding: EdgeInsets.all(8.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
CircleAvatar(
backgroundImage: NetworkImage(avatarUrl),
),
Expanded(
child: Container(),
),
Text(
userName,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.w800,
fontSize: 18.0,
),
)
],
),
),
);
}feedbox.dart
import 'package:flutter/material.dart';
import 'actionbtn.dart';
//the feed box will have for parameters :
// the user name , the user avatar, the pub date, the content text and content img
Widget feedBox(String avatarUrl, String userName, String date,
String contentText, String contentImg) {
return Container(
margin: EdgeInsets.only(bottom: 20.0),
width: double.infinity,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(12.0),
color: Color(0xFF262626),
),
child: Padding(
padding: EdgeInsets.all(8.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
children: [
CircleAvatar(
backgroundImage: NetworkImage(avatarUrl),
radius: 25.0,
),
SizedBox(
width: 10.0,
),
Expanded(
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
userName,
style: TextStyle(
color: Colors.white,
fontSize: 18.0,
fontWeight: FontWeight.w600,
),
),
SizedBox(
height: 5.0,
),
Text(
date,
style: TextStyle(
color: Colors.white,
fontSize: 16.0,
fontWeight: FontWeight.w400,
),
),
],
),
),
],
),
SizedBox(
height: 10.0,
),
if (contentText != "")
Text(
contentText,
style: TextStyle(color: Colors.white, fontSize: 16.0),
),
SizedBox(
height: 10.0,
),
if (contentImg != "") Image.network(contentImg),
SizedBox(
height: 10.0,
),
Divider(
thickness: 1.5,
color: Color(0xFF505050),
),
Row(
children: [
actionButton(Icons.thumb_up, "Like", Color(0xFF505050)),
actionButton(Icons.comment, "Reply", Color(0xFF505050)),
actionButton(Icons.share, "Share", Color(0xFF505050)),
],
)
],
),
),
);
}最后
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