Flutter 我的飞镖代码有问题吗';本地html未显示在UI';
我正在用这个库()作为抽屉。 我想在home(Container)小部件中显示本地html内容,我已经学习了这个Webview教程() 但对我来说什么都不管用! 提前谢谢 主飞镖Flutter 我的飞镖代码有问题吗';本地html未显示在UI';,flutter,webview,Flutter,Webview,我正在用这个库()作为抽屉。 我想在home(Container)小部件中显示本地html内容,我已经学习了这个Webview教程() 但对我来说什么都不管用! 提前谢谢 主飞镖 import 'dart:convert'; import 'package:delivery/circular_image.dart'; import 'package:delivery/menu_page.dart'; import 'package:flutter/material.dart'; import
import 'dart:convert';
import 'package:delivery/circular_image.dart';
import 'package:delivery/menu_page.dart';
import 'package:flutter/material.dart';
import 'package:delivery/zoom_scaffold.dart';
import 'package:flutter/services.dart';
import 'package:provider/provider.dart';
import 'package:webview_flutter/webview_flutter.dart';
void main() => runApp(new MyApp());
String filePath = '/assests/files/abc1.html';
WebViewController _webViewController;
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return new MaterialApp(
title: 'Zoom Menu',
theme: new ThemeData(
primarySwatch: Colors.blue,
),
home: new MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
@override
_MyHomePageState createState() => new _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> with TickerProviderStateMixin {
MenuController menuController;
@override
void initState() {
super.initState();
menuController = new MenuController(
vsync: this,
)..addListener(() => setState(() {}));
}
@override
void dispose() {
menuController.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return ChangeNotifierProvider(
builder: (context) => menuController,
child: ZoomScaffold(
menuScreen: MenuScreen(),
contentScreen: Layout(
contentBuilder: (cc) => Container(
color: Colors.grey[600],
child: WebView(
initialUrl: filePath,
javascriptMode: JavascriptMode.unrestricted,
onWebViewCreated: (WebViewController webViewController) {
_webViewController = webViewController;
_loadHtmlFromAssets();
},
),
)),
),
);
}
_loadHtmlFromAssets() async {
String fileHtmlContents = await rootBundle.loadString(filePath);
_webViewController.loadUrl(Uri.dataFromString(fileHtmlContents,
mimeType: 'text/html', encoding: Encoding.getByName('utf-8'))
.toString());
}
}
pubspec.taml
name: delivery
description: A new Flutter project.
version: 1.0.0+1
environment:
sdk: ">=2.0.0-dev.68.0 <3.0.0"
dependencies:
webview_flutter: ^0.3.14+1
flutter:
sdk: flutter
# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^0.1.2
provider: ^2.0.0
dev_dependencies:
flutter_test:
sdk: flutter
# The following section is specific to Flutter.
flutter:
uses-material-design: true
# To add assets to your application, add an assets section, like this:
assets:
- assests/files/
- assests/files/abc1.html
导入'dart:convert';
导入“包装:交付/圆形_图像.dart”;
导入“包装:配送/菜单页面.省道”;
进口“包装:颤振/材料.省道”;
导入“包装:交付/缩放脚手架.省道”;
导入“包:flifter/services.dart”;
导入“包:provider/provider.dart”;
导入“package:webview_flatter/webview_flatter.dart”;
void main()=>runApp(新的MyApp());
字符串filePath='/assests/files/abc1.html';
WebViewController _WebViewController;
类MyApp扩展了无状态小部件{
@凌驾
小部件构建(构建上下文){
返回新材料PP(
标题:“缩放菜单”,
主题:新主题数据(
主样本:颜色。蓝色,
),
主页:新建MyHomePage(),
);
}
}
类MyHomePage扩展StatefulWidget{
@凌驾
_MyHomePageState createState()=>new_MyHomePageState();
}
类_MyHomePageState使用TickerProviderStateMixin扩展状态{
菜单控制器菜单控制器;
@凌驾
void initState(){
super.initState();
menuController=新的menuController(
vsync:这个,,
)..addListener(()=>setState((){}));
}
@凌驾
无效处置(){
menuController.dispose();
super.dispose();
}
@凌驾
小部件构建(构建上下文){
返回ChangeNotifierProvider(
生成器:(上下文)=>menuController,
孩子:ZoomScaffold(
menuScreen:menuScreen(),
内容屏幕:布局(
contentBuilder:(cc)=>容器(
颜色:颜色。灰色[600],
孩子:网络视图(
initialUrl:filePath,
javascriptMode:javascriptMode.unrestricted,
onWebViewCreated:(WebViewController WebViewController){
_webViewController=webViewController;
_加载HtmlFromAssets();
},
),
)),
),
);
}
_loadHtmlFromAssets()异步{
String fileHtmlContents=await rootBundle.loadString(文件路径);
_webViewController.loadUrl(Uri.dataFromString(FileHtmlContent,
mimeType:'text/html',编码:encoding.getByName('utf-8'))
.toString());
}
}
公共图书馆
姓名:送货
描述:一个新的颤振项目。
版本:1.0.0+1
环境:
sdk:“>=2.0.0-dev.68.0我认为您给出的资产路径是错误的
从更改资产路径
String filePath = '/assests/files/abc1.html';
到
步骤1将/assets/files/abc1.html更改为assets/files/abc1.html,删除第一个/
步骤2初始URL:“”
完整代码
import 'dart:convert';
import 'package:delivery/circular_image.dart';
import 'package:delivery/menu_page.dart';
import 'package:flutter/material.dart';
import 'package:delivery/zoom_scaffold.dart';
import 'package:flutter/services.dart';
import 'package:provider/provider.dart';
import 'package:webview_flutter/webview_flutter.dart';
void main() => runApp(new MyApp());
String filePath = 'assets/sample.html';
WebViewController _webViewController;
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return new MaterialApp(
title: 'Zoom Menu',
theme: new ThemeData(
primarySwatch: Colors.blue,
),
home: new MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
@override
_MyHomePageState createState() => new _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> with TickerProviderStateMixin {
MenuController menuController;
@override
void initState() {
super.initState();
menuController = new MenuController(
vsync: this,
)..addListener(() => setState(() {}));
}
@override
void dispose() {
menuController.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return ChangeNotifierProvider(
builder: (context) => menuController,
child: ZoomScaffold(
menuScreen: MenuScreen(),
contentScreen: Layout(
contentBuilder: (cc) => Container(
color: Colors.grey[600],
child: WebView(
initialUrl: '',
javascriptMode: JavascriptMode.unrestricted,
onWebViewCreated: (WebViewController webViewController) {
_webViewController = webViewController;
_loadHtmlFromAssets();
},
),
)),
),
);
}
_loadHtmlFromAssets() async {
String fileHtmlContents = await rootBundle.loadString(filePath);
_webViewController.loadUrl(Uri.dataFromString(fileHtmlContents,
mimeType: 'text/html', encoding: Encoding.getByName('utf-8'))
.toString());
}
}
导入'dart:convert';
导入“包装:交付/圆形_图像.dart”;
导入“包装:配送/菜单页面.省道”;
进口“包装:颤振/材料.省道”;
导入“包装:交付/缩放脚手架.省道”;
导入“包:flifter/services.dart”;
导入“包:provider/provider.dart”;
导入“package:webview_flatter/webview_flatter.dart”;
void main()=>runApp(新的MyApp());
字符串filePath='assets/sample.html';
WebViewController _WebViewController;
类MyApp扩展了无状态小部件{
@凌驾
小部件构建(构建上下文){
返回新材料PP(
标题:“缩放菜单”,
主题:新主题数据(
主样本:颜色。蓝色,
),
主页:新建MyHomePage(),
);
}
}
类MyHomePage扩展StatefulWidget{
@凌驾
_MyHomePageState createState()=>new_MyHomePageState();
}
类_MyHomePageState使用TickerProviderStateMixin扩展状态{
菜单控制器菜单控制器;
@凌驾
void initState(){
super.initState();
menuController=新的menuController(
vsync:这个,,
)..addListener(()=>setState((){}));
}
@凌驾
无效处置(){
menuController.dispose();
super.dispose();
}
@凌驾
小部件构建(构建上下文){
返回ChangeNotifierProvider(
生成器:(上下文)=>menuController,
孩子:ZoomScaffold(
menuScreen:menuScreen(),
内容屏幕:布局(
contentBuilder:(cc)=>容器(
颜色:颜色。灰色[600],
孩子:网络视图(
初始URL:“”,
javascriptMode:javascriptMode.unrestricted,
onWebViewCreated:(WebViewController WebViewController){
_webViewController=webViewController;
_加载HtmlFromAssets();
},
),
)),
),
);
}
_loadHtmlFromAssets()异步{
String fileHtmlContents=await rootBundle.loadString(文件路径);
_webViewController.loadUrl(Uri.dataFromString(FileHtmlContent,
mimeType:'text/html',编码:encoding.getByName('utf-8'))
.toString());
}
}
工作演示
谢谢你的指点..但我刚才做的两个位置都拼错了…我想还有其他问题,谢谢你,非常感谢你这么大的努力!!@chunhunghan。我的ide中发生了一些奇怪的事情有些时候Flitter通过热重新加载获得了作品,下次它就变成空白了。。。。。
import 'dart:convert';
import 'package:delivery/circular_image.dart';
import 'package:delivery/menu_page.dart';
import 'package:flutter/material.dart';
import 'package:delivery/zoom_scaffold.dart';
import 'package:flutter/services.dart';
import 'package:provider/provider.dart';
import 'package:webview_flutter/webview_flutter.dart';
void main() => runApp(new MyApp());
String filePath = 'assets/sample.html';
WebViewController _webViewController;
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return new MaterialApp(
title: 'Zoom Menu',
theme: new ThemeData(
primarySwatch: Colors.blue,
),
home: new MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
@override
_MyHomePageState createState() => new _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> with TickerProviderStateMixin {
MenuController menuController;
@override
void initState() {
super.initState();
menuController = new MenuController(
vsync: this,
)..addListener(() => setState(() {}));
}
@override
void dispose() {
menuController.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return ChangeNotifierProvider(
builder: (context) => menuController,
child: ZoomScaffold(
menuScreen: MenuScreen(),
contentScreen: Layout(
contentBuilder: (cc) => Container(
color: Colors.grey[600],
child: WebView(
initialUrl: '',
javascriptMode: JavascriptMode.unrestricted,
onWebViewCreated: (WebViewController webViewController) {
_webViewController = webViewController;
_loadHtmlFromAssets();
},
),
)),
),
);
}
_loadHtmlFromAssets() async {
String fileHtmlContents = await rootBundle.loadString(filePath);
_webViewController.loadUrl(Uri.dataFromString(fileHtmlContents,
mimeType: 'text/html', encoding: Encoding.getByName('utf-8'))
.toString());
}
}