AI代码解释 import'package:flutter/material.dart';classHomePageextendsStatefulWidget{constHomePage({super.key});@override State<HomePage>createState(){return_HomePageState();}}class_HomePageStateextendsState<HomePage>{String test="study state";bool isUppercase=false;voidchangeText(){setState((){isUppercase...
Map<String,Map<String,String>>getkeys=>{'zh_CN':{Local.home:'主页',Local.mine:'我的',Local.languageSetting:'多语言设置',Local.followerSystemLanguage:'跟随系统语言',Local.simplifiedChinese:'简体中文',},'en_US':{Local.home:'Home',Local.mine:'Mine',Local.languageSetting:'Multilingual setup'...
import'dart:async';import'package:flutter/services.dart';constMethodChannel _channel =constMethodChannel('com.sankuai.waimai/network'); Future<Map<String,dynamic>> post(Stringpath, [Map<String,dynamic> form])async{return_channel.invokeMethod("post", {'path': path,'body': form}).then((result) ...
这样可以获取到提供者程序的引用 class MyApp extends ConsumerWidget { @override Widget build(BuildContext context, WidgetRef ref) { final String value = ref.watch(helloWorldProvider); return MaterialApp( home: Scaffold( appBar: AppBar(title: const Text('Example')), body: Center( child: Text(...
/path/to/engine/src/third_party/dart/runtime/vm/http://flags.cc const char* Flags::Register_charp(charp* addr, const char* name, const char* default_value, const char* comment) { ASSERT(Lookup(name) == NULL); Flag* flag = new Flag(name, comment, addr, Flag::kString); ...
final String title; @override _MyHomePageState createState() => _MyHomePageState(); } class _MyHomePageState extends State<MyHomePage> { int counter = 0; void _incrementCounter() { setState(() { // This call to setState tells the Flutter framework that something has // changed in this...
// ignore: prefer_const_constructors_in_immutables , never use const for this class UniqueKey(); @override String toString() => '[#${shortHash(this)}]'; 这里我们可以看出这个UniqueKey是产生了一个随机值的字符串,所以这里一定是唯一的。
class ExampleHomePage extends StatelessWidget {final String url = '/windows_page_view_2';const ExampleHomePage({super.key});@overrideWidget build(BuildContext context) {return Scaffold(body: Column(children: [// 调用上一节写好的 Header(appbar)部分const ResponsiveHeaderNavbar(),Expanded(child: Cus...
final String title;//商品列表, 参数 final String productinfo;//商品信息, 参数 ProDuct(this.title,this.productinfo);//构造函数,传参}//类入口void main(){ runApp(MaterialApp( title:'daohanlist', home: ProDuctList(//自定义入口名//generate是传参生成器, ...
staticfinalString staticFinalStr = "这是一个不可修改的静态字符串";//const 常量,目前觉得它非常类似 final,但是它只能修饰静态的staticconstString constStr = "这是一个常量";//_ 下滑线,这个可以用于大多数名称(如:变量名,类名等)前,它会将修饰的类或变量私有化,类似 java 的 privateString _private...