dependOnInheritedWidgetOfExactType 是Flutter 框架中的一个核心方法,用于在 Widget 树中查找并依赖特定类型的 InheritedWidget。当这个 InheritedWidget 的数据发生变化时,依赖它的 Widget 会被通知并重新构建。这个方法通常用于实现状态管理或数据共享功能,允许子 Widget 访问和响应上层 InheritedWidget 中的数据变化。 2....
如果你需要在flutter 1.26中运行provider，你应该运行：Flutter降级。如果你需要在flutter 2.0.0 +中运...
简介: Flutter更改主题颜色报错:type ‘Color‘ is not a subtype of type ‘MaterialColor‘ class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( title: 'Futter App', debugShowCheckedModeBanner: false, theme: ThemeData( //更改主题色为白色 ...
A TypeAhead widget for Flutter, where you can show suggestions to users as they type - AbdulRahmanAlHamali/flutter_typeahead
http请求响应为空,报错:“The request has been canceled or the number of requests exceeds 100” Socket接口库是否支持绑定域名 http请求中下载文件报错2300023 http请求执行的线程是否可控 http请求并发的最大数量限制是多少 http请求结束后是否需要进行销毁 http是否支持连接复用 应用能否指定使用某一网络...
今天调试flutter程序时报错。程序运行时报如下错误: type ‘Future<int>’ is not a subtype of type ‘int’ in type cast 错误源码 int order = DatabaseHelper.dbhelper.getTaskGroupRelationOrder() as int; TaskGroupRelation relation = TaskGroupRelation( ...
A TypeAhead (autocomplete) widget for Flutter, where you can show suggestions to users as they type Features Shows suggestions in an overlay that floats on top of other widgets Allows you to specify what the suggestions will look like through a builder function ...
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14. Create a circle around an icon in Flutter. 15. Find a document by ID in the Gomongo console. 16. Drop a MongoDB database. 17. Convert a string to an integer in Golang. 18. Convert an integer to a string in Golang. ...
this is causing this error: [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: type 'List<Object?> > > ' is not a subtype of type 'List?' in type cast #0 SharedPreferencesWithCache.getStringList (package:shared_preferences/src/shared_preferences_async.dart:310:44) [...