deprecated_member_use, unused_local_variable import 'package:flutter/material.dart'; import 'res/listData.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { const MyApp({Key? key}) : super(key: key); @override Widget build(BuildContext context) { return Materia...
return ItemWidget(data: dataList[index]); }, itemCount: dataList.length, cacheExtent: 200.0, // 设置缓存区域为200像素 ) 减少重绘:频繁的重绘会导致界面闪烁,影响用户体验。为了减少不必要的重绘,我们可以利用RepaintBoundary组件将需要重绘的部分与其他部分隔离开来。RepaintBoundary会在其子组件重绘时创建一个...
import'package:flutter/material.dart';import'base_bean.dart';typedefGroupChildViewCreate=WidgetFunction(int parentIndex,int childIndex);typedefSectionViewCreate=WidgetFunction(int index);///折叠列表 - 2classTwoLevelWidget<TextendsBaseBean>extendsStatefulWidget{finalGroupChildViewCreate groupChildViewCreate;f...
feat(CupertinoDatePicker): add a two points time seperator column #163417 opened Feb 16, 2025 Fix Container's child state loss. #163419 opened Feb 16, 2025 [ReorderableListView] Always wrap child with Material #163428 opened Feb 16, 2025 Add PlatformDispatcher.engineId #163476 opened ...
//定义路由Map<String,WidgetBuilder>datas={'/pageone':(builder){returnPageOne("数据1");},'/pagetwo':(builder)=>PageTwo("数据2"),'/pagethree':(builder){returnPageThree("数据3");},};classMyAppextendsStatelessWidget{@override Widgetbuild(BuildContext context){returnMaterialApp(title:'Flutter ...
视图是所有其他控件的最顶层容器。根视图是在启动新用户会话时自动创建的。从布局角度来看,View 表示一个 Column 控件,因此它具有类似的行为并共享相同的属性。 代码语言:javascript 复制 向页中添加一个新控件 page.controls.append(Text("Hello!"))page.update()或者 ...
Steps to reproduce Add two_dimensional_scrollables 0.1.1 package Add a TableView.builder() with pinned rows (pinnedRowCount: 1) and columns (pinnedColumnCount: 1). Add merged cell (rowMergeStart: 2, rowMergeSpan: 2, columnMergeStart: 2, ...
另外,本次 3.19 还修复了SingleChildScrollView#136871和ReorderableList#136828相关的崩溃问题,同时two_dimensional_scrollables也修复了一些问题,比如在任一方向上正在进行滚动时出现拖动或者点击,scroll activity 将按预期停止。 最后,two_dimensional_scrollables 上的TableView控件也进行了多次更新,提供了需要改进,例如添...
TwoPane is based on theFlex widget, the same one thatRowandColumnare based on. This means thatdirection,textDirectionandverticalDirectionbehave the same as they do forFlex. The only difference is thatdirectionis ignored on a dual-screen device when spanned and will be decided by the orientatio...
TwoLevelWidget(this.groupChildViewCreate,this.sectionViewCreate,this.data,);@overrideState<StatefulWidget>createState()=>_TwoLevelWidgetState();}class_TwoLevelWidgetStateextendsState<TwoLevelWidget>{@overrideWidgetbuild(BuildContextcontext){returnColumn(children:<Widget>[Container(width:double.infinity,child...