AI代码解释 import{FlutterPlugin,FlutterPluginBinding,MethodCall,MethodCallHandler,MethodChannel,MethodResult,}from'@ohos/flutter_ohos';import{storageStatistics,statfs}from'@kit.CoreFileKit';import{BusinessError}fro
记录下Callback to Future的写法,使用Completer类即可 代码语言:txt AI代码解释 class ViewUtil { ///界面初始化完成 static Future<Void> initFinish() async { Completer<Void> completer = Completer(); WidgetsBinding.instance.addPostFrameCallback((timeStamp) { completer.complete(); }); return completer....
记录下Callback to Future的写法,使用Completer类即可 classViewUtil{ ///界面初始化完成 staticFuture<Void>initFinish()async{ Completer<Void>completer=Completer(); WidgetsBinding.instance.addPostFrameCallback((timeStamp) { completer.complete(); }); returncompleter.future; } } 1. 2. 3. 4. 5. 6....
event2- callback2 event2- callback3 event2- callback4 microtask3 event5 event5- callback delayedevent 看到结果后你可能会疑惑,为什么 event1、event1 - callback1、event1 - callback2 会连续输出,而 event2 - callback1 输出后为什么是 event3,event5、event5 - callback 为什么会在 microtask3 ...
registerWith方式是通过反射进行加载 目前老版本项目里的插件都是使用这种方式注册,但是从flutter v1.12.x 开始往后官方推荐使用第二种方式注册,第一种方式会在以后的更新中废除,所以以后更新flutter大版本,可能要重新修改现有插件的注册方式 //此处是旧的插件加载注册方式,静态方法 public static void registerWith(Regis...
addQueryParameter(key,value); } //加入自定义通用参数 urlBuilder.addQueryParameter("ppp", "yyyy"); String requestUrl = urlBuilder.build().toString(); //发起网络调用 final Request request = new Request.Builder().url(requestUrl).build(); client.newCall(request).enqueue(new Callback() { @...
void main() { print('main start'); Future.microtask(() => print('microtask1')); ...
9.出现类似 The argument type '_BottomContainerState' can't be assigned to the parameter type 'TickerProvider'.dart(argument_type_not_assignable) 如: 这是需要混入withSingleTickerProviderStateMixin即可. 10. children 直接遍历返回一个数组Widget: ...
The only parameter you need to provide at least is "onTapItem" callback, aimed at navigating to the Chat page for each conversation. The "Chat" class will be introduced in the next step. import'package:flutter/material.dart'; import'package:tim_ui_kit/tim_ui_kit.dart'; ...
= null), super(key: key); final Animation<double> animation; final VoidCallback onTap; final int item; final bool selected; @override Widget build(BuildContext context) { TextStyle textStyle = Theme.of(context).textTheme.display1; if (selected) textStyle = textStyle.copyWith(color: ...