值规则 ID CA1849 类别“性能”修复是中断修复还是非中断修复非中断原因从任务返回方法调用时,存在 Async 后缀等效项的所有方法都会生成此警告。...此外,调用 Task.Wait()、Task.Result 或 Task.GetAwaiter().GetResult() 将生成此警告。...规则...
<anonymous closure>(package:flutter/src/foundation/binding.dart:281:9)E/flutter(2851):#1BindingBase.checkInstance(package:flutter/src/foundation/binding.dart:363:6)E/flutter(2851):#2ServicesBinding.instance(package:flutter/src/services/binding.dart:48:54)E/flutter(2851):#3MethodChannel.setMethodCall...
publicclassFlutterNetworkPluginimplementsMethodChannel.MethodCallHandler{privatestaticfinalString CHANNEL_NAME ="com.sankuai.waimai/network";@OverridepublicvoidonMethodCall(MethodCall methodCall,finalMethodChannel.Result result){switch(methodCall.method) {case"post": RetrofitManager.performRequest(post((String) me...
// ignore_for_file: avoid_print import 'package:flutter/material.dart'; import 'package:go_router/go_router.dart'; final logger = MyLogger(); const _useGoRouter = true; /// This app demonstrates that using GoRouter(v13.2.0) with non-const widgets causes [build] method being called on...
1.Framework使用dart实现,包括Material Design风格的Widget,Cupertino(针对iOS)风格的Widgets,文本/图片/按钮等基础Widgets,渲染,动画,手势等。 此部分的核心代码是:flutter仓库下的flutter package,以及sky_engine仓库下的io,async,ui(dart:ui库提供了Flutter框架和引擎之间的接口)等package。
Xcode build failed due to concurrent builds. Retry in 8 seconds. I see this message every time I run my app and then build gets succeeded after some tries. I created a new app it's not happening in that case. It's been in existence for some time for my existing project and happening...
@override**void**initState(){**super**.initState();initPlatformState();}*// Platform messages are asynchronous, so we initialize in an async method.*Future<**void**>initPlatformState()**async**{String platformVersion;*// Platform messages may fail, so we use a try/catch PlatformException...
第一个参数表示method,方法名称,原生端会解析此参数。 第二个参数表示参数,类型任意,多个参数通常使用Map。 返回Future,原生端返回的数据。 完整代码: classMethodChannelDemoextendsStatefulWidget{@override_MethodChannelDemoState createState() => _MethodChannelDemoState(); ...
// This call to setState tells the Flutter framework that // something has changed in this State, which causes it to rerun // the build method below so that the display can reflect the // updated values. If you change _counter without calling ...
//多页面路由Future<String>pushNamedData(BuildContext context,String namedStr)async{vardatas=awaitNavigator.of(context).pushNamed(namedStr);returndatas;} 应用 跳转: 各个子页面的UI: 运行效果: 路由常见问题及其解决方案 主题风格的一致性 主页面和非主页面的 跳转方式选择 可能不太一样; ...