# flustars **Repository Path**: Spring_Cloud_Sell/flustars ## Basic Information - **Project Name**: flustars - **Description**: No description available - **Primary Language**: Unknown - **License**: BSD-2-Clause - **Default Branch**: master - **Homepage**: None - **GVP Project**: No ## Statistics - **Stars**: 0 - **Forks**: 0 - **Created**: 2025-03-05 - **Last Updated**: 2025-03-05 ## Categories & Tags **Categories**: Uncategorized **Tags**: None ## README Language: [English](README-EN.md) | 中文简体 [![Pub](https://img.shields.io/pub/v/flustars.svg?style=flat-square&color=009688)](https://pub.dartlang.org/packages/flustars)      [![Pub](https://img.shields.io/pub/v/flustars.svg?style=flat-square&color=2196F3)](https://pub.flutter-io.cn/packages/flustars) # Flutter常用工具类库 flustars依赖于Dart常用工具类库[common_utils](https://github.com/Sky24n/common_utils),以及对其他第三方库封装,致力于为大家分享简单易用工具类。如果你有好的工具类欢迎PR. 目前包含SharedPreferences Util, Screen Util, Directory Util, Widget Util, Image Util。 [✓] Flutter (Channel stable, v2.0.0, locale zh-Hans-CN) ### Pub ```yaml dependencies: flustars: ^2.0.1 # https://github.com/Sky24n/sp_util # sp_util分拆成单独的库,可以直接引用 sp_util: ^2.0.3 ``` ### [Change Log](CHANGE_LOG.md) v2.0.0 Migrate to null-safety. v0.3.3 分拆[sp_util](https://github.com/Sky24n/sp_util)成单独的库,可以直接引用 [common_utils](https://github.com/Sky24n/common_utils)新版本v1.2.0。 如果项目中使用了 flustars: ^0.2.6及以上版本。 删除pubspec.lock文件,直接运行flutter packages get 即可使用最新版! common_utils v1.2.0 1、新增JsonUtil。 2、新增EncryptUtil 简单加解密。 3、LogUtil 更新。 ```yaml String objStr = "{\"name\":\"成都市\"}"; City hisCity = JsonUtil.getObj(objStr, (v) => City.fromJson(v)); String listStr = "[{\"name\":\"成都市\"}, {\"name\":\"北京市\"}]"; List cityList = JsonUtil.getObjList(listStr, (v) => City.fromJson(v)); const String key = '11, 22, 33, 44, 55, 66'; String value = 'Sky24n'; String encode = EncryptUtil.xorBase64Encode(value, key); // WH1YHgMs String decode = EncryptUtil.xorBase64Decode(encode, key); // Sky24n //超长log查看 common_utils e — — — — — — — — — — — — — — — — st — — — — — — — — — — — — — — — — common_utils e | 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45, common_utils e | 7,988,989,990,991,992,993,994,995,996,997,998,999, common_utils e — — — — — — — — — — — — — — — — ed — — — — — — — — — — — — — — — — ``` ### [Flutter工具类库 flustars][flustars_github] 1、SpUtil : 单例"同步"SharedPreferences工具类。支持get传入默认值,支持存储对象,支持存储对象数组。 2、ScreenUtil : 屏幕适配,获取屏幕宽、高、密度,AppBar高,状态栏高度,屏幕方向. 3、WidgetUtil : 监听Widget渲染状态,获取Widget宽高,在屏幕上的坐标,获取网络/本地图片尺寸. 4、DioUtil : 单例Dio网络工具类(已迁移至此处[DioUtil](https://github.com/Sky24n/flutter_wanandroid/blob/master/lib/data/net/dio_util.dart))。 5、ImageUtil : 获取网络/本地图片尺寸. ### [Dart常用工具类库 common_utils][common_utils_github] 1、TimelineUtil : 时间轴.(新) 2、TimerUtil : 倒计时,定时任务.(新) 3、MoneyUtil : 精确转换,元转分,分转元,支持格式输出.(新) 4、LogUtil : 简单封装打印日志.(新) 5、DateUtil : 日期转换格式化输出. 6、RegexUtil : 正则验证手机号,身份证,邮箱等等. 7、NumUtil : 保留x位小数, 精确加、减、乘、除, 防止精度丢失. 8、ObjectUtil : 判断对象是否为空(String List Map),判断两个List是否相等. 9、TextUtil : TextUtil. 10、EncryptUtil : EncryptUtil. 11、JsonUtil : JsonUtil. ### APIs * #### SpUtil -> [Example](./example/lib/main.dart) ```dart getObj getObjList putObject getObject putObjectList getObjectList getString putString getBool putBool getInt putInt getDouble putDouble getStringList putStringList getDynamic haveKey getKeys remove clear isInitialized /// SpUtil使用: /// 方式一 /// 等待sp初始化完成后再运行app。 /// sp初始化时间 release模式下30ms左右,debug模式下100多ms。 void main() async { WidgetsFlutterBinding.ensureInitialized(); await SpUtil.getInstance(); runApp(MyApp()); } class MyAppState extends State { @override void initState() { super.initState(); /// 同步使用Sp。 /// 存取基础类型 SpUtil.putString("username", "Sky24n"); String userName = SpUtil.getString("username"); print("MyHomePage userName: " + userName); bool isFirst = SpUtil.getBool("userName", defValue: true); SpUtil.putBool("isFirst", false); print("MyHomePage isFirst: $isFirst"); /// save object example. /// 存储实体对象示例。 City city = new City(); city.name = "成都市"; SpUtil.putObject("loc_city", city); City hisCity = SpUtil.getObj("loc_city", (v) => City.fromJson(v)); print("City: " + (hisCity == null ? "null" : hisCity.toString())); /// save object list example. /// 存储实体对象list示例。 List list = new List(); list.add(new City(name: "成都市")); list.add(new City(name: "北京市")); SpUtil.putObjectList("loc_city_list", list); List _cityList = SpUtil.getObjList("loc_city_list", (v) => City.fromJson(v)); print("City list: " + (_cityList == null ? "null" : _cityList.toString())); } @override Widget build(BuildContext context) { return MaterialApp(); } } ``` * #### ScreenUtil -> [Example](./example/lib/main.dart) ``` getWidth : 返回根据屏幕宽适配后尺寸. getHeight : 返回根据屏幕高适配后尺寸. getWidthPx : 返回根据屏幕宽适配后尺寸. getHeightPx : 返回根据屏幕高适配后尺寸. getSp : 返回根据屏幕宽适配后字体尺寸. screenWidth : 获取屏幕宽. screenHeight : 获取屏幕高. screenDensity : 获取屏幕密度. appBarHeight : 获取系统AppBar高度. statusBarHeight : 获取系统状态栏高度. getScreenW(ctx) : 当前屏幕 宽. getScreenH(ctx) : 当前屏幕 高. getStatusBarH(ctx) : 当前状态栏高度. getBottomBarH(ctx) : 当前BottomBar高度. getScaleW(ctx,size) : 返回根据屏幕宽适配后尺寸. getScaleH(ctx,size) : 返回根据屏幕高适配后尺寸. getScaleSp(ctx,size) : 返回根据屏幕宽适配后字体尺寸. getScaleSp(ctx,size) : 返回根据屏幕宽适配后字体尺寸. ///旧适配方法仅适用于纵屏适配。 ///推荐使用以下新适配方法。 getAdapterSize(size) : 返回适配后尺寸,可用于宽,高,字体尺寸. getAdapterSizeCtx(ctx,size) : 返回适配后尺寸,可用于宽,高,字体尺寸. double adapterSize = ScreenUtil.getInstance().getAdapterSize(100); double adapterSize = ScreenUtil.getAdapterSizeCtx(context, 100); 一、不依赖context // 屏幕宽 double screenWidth = ScreenUtil.getInstance().screenWidth; // 屏幕高 double screenHeight = ScreenUtil.getInstance().screenHeight; // 屏幕像素密度 double screenDensity = ScreenUtil.getInstance().screenDensity; // 系统状态栏高度 double statusBarHeight = ScreenUtil.getInstance().statusBarHeight; // BottomBar高度 double bottomBarHeight = ScreenUtil.getInstance().bottomBarHeight; // 系统AppBar高度 double appBarHeight = ScreenUtil.getInstance().appBarHeight; // 根据屏幕宽适配后尺寸 double adapterW100 = ScreenUtil.getInstance().getWidth(100); // 根据屏幕高适配后尺寸 double adapterH100 = ScreenUtil.getInstance().getHeight(100); // 根据屏幕宽适配后字体尺寸 double adapterSp100 = ScreenUtil.getInstance().getSp(100); // 根据屏幕宽适配后尺寸(输入px) double adapterW100px = ScreenUtil.getInstance().getWidthPx(300); // 根据屏幕高适配后尺寸(输入px) double adapterH100px = ScreenUtil.getInstance().getHeightPx(300); 二、依赖context // 屏幕宽 double screenWidth = ScreenUtil.getScreenW(context); // 屏幕高 double screenHeight = ScreenUtil.getScreenH(context); // 屏幕像素密度 double screenDensity = ScreenUtil.getScreenDensity(context); // 系统状态栏高度 double statusBarHeight = ScreenUtil.getStatusBarH(context); // BottomBar高度 double bottomBarHeight = ScreenUtil.getBottomBarH(context); // 根据屏幕宽适配后尺寸 double adapterW100 = ScreenUtil.getScaleW(context, 100); // 根据屏幕高适配后尺寸 double adapterH100 = ScreenUtil.getScaleH(context, 100); // 根据屏幕宽适配后字体尺寸 double adapterSp100 = ScreenUtil.getScaleSp(context, 100); // 屏幕方向 Orientation orientation = ScreenUtil.getOrientation(context); ``` * #### DirectoryUtil ``` setInitDir initTempDir initAppDocDir initAppSupportDir initStorageDir createDirSync createDir getTempPath getAppDocPath getAppSupportPath getStoragePath createTempDirSync createAppDocDirSync createStorageDirSync createTempDir createAppDocDir createStorageDir await DirectoryUtil.getInstance(); String tempPath = DirectoryUtil.getTempPath( category: 'Pictures', fileName: 'demo', format: 'png'); print("thll tempPath: $tempPath"); String appDocPath = DirectoryUtil.getAppDocPath( category: 'Pictures', fileName: 'demo', format: 'png'); print("thll appDocPath: $appDocPath"); String appSupportPath = DirectoryUtil.getAppSupportPath( category: 'Pictures', fileName: 'demo', format: 'png'); print("thll appSupportPath: $appSupportPath"); String storagePath = DirectoryUtil.getStoragePath( category: 'Pictures', fileName: 'demo', format: 'png'); print("thll storagePath: $storagePath"); ``` * #### WidgetUtil -> [Example1](https://github.com/Sky24n/flutter_wanandroid/blob/master/lib/demos/widget_page.dart),[Example2](https://github.com/Sky24n/flutter_wanandroid/blob/master/lib/demos/image_size_page.dart) ``` asyncPrepare : Widget渲染监听,监听widget宽高变化,callback返回宽高等参数. getWidgetBounds : 获取widget 宽高. getWidgetLocalToGlobal : 获取widget在屏幕上的坐标. getImageWH : 获取图片宽高,加载错误情况返回 Rect.zero.(单位 px). getImageWHE : 获取图片宽高,加载错误会抛出异常.(单位 px). /// widget渲染监听。 WidgetUtil widgetUtil = new WidgetUtil(); widgetUtil.asyncPrepare(context, true, (Rect rect) { // widget渲染完成。 }); /// widget宽高。 Rect rect = WidgetUtil.getWidgetBounds(context); /// widget在屏幕上的坐标。 Offset offset = WidgetUtil.getWidgetLocalToGlobal(context); /// 获取CachedNetworkImage下的图片尺寸 Image image = new Image(image: new CachedNetworkImageProvider("Url")); Rect rect1 = await WidgetUtil.getImageWH(image: image); /// 其他image Image imageAsset = new Image.asset(""); Image imageFile = new Image.file(File("path")); Image imageNetwork = new Image.network("url"); Image imageMemory = new Image.memory(null); /// 获取网络图片尺寸 Rect rect2 = await WidgetUtil.getImageWH(url: "Url"); /// 获取本地图片尺寸 localUrl 需要全路径 Rect rect3 = await WidgetUtil.getImageWH(localUrl: "assets/images/3.0x/ali_connors.png"); /// 其他方式 WidgetUtil.getImageWH(url: "Url").then((Rect rect) { print("rect: " + rect.toString(); }); WidgetUtil.getImageWHE(url: "Url").then((Rect rect) { print("rect: " + rect.toString(); }).catchError((error) { print("rect: " + error.toString(); }); ``` * #### ImageUtil ```dart getImageWH ``` * #### DioUtil (dio: ^1.0.13) 详细请求+解析请参考[flutter_wanandroid][flutter_wanandroid_github]项目。 ``` // 打开debug模式. DioUtil.openDebug(); // 配置网络参数. Options options = DioUtil.getDefOptions(); options.baseUrl = "http://www.wanandroid.com/"; HttpConfig config = new HttpConfig(options: options); DioUtil().setConfig(config); // 两种单例请求方式. DioUtil().request(Method.get, "banner/json"); DioUtil.getInstance().request(Method.get, "banner/json"); //示例 LoginReq req = new LoginReq('username', 'password'); DioUtil().request(Method.post, "user/login",data: req.toJson()); //示例 FormData formData = new FormData.from({ "username": "username", "password": "password", }); DioUtil().requestR(Method.post, "user/login",data: rformData); // 网络请求日志 I/flutter ( 5922): ----------------Http Log---------------- I/flutter ( 5922): [statusCode]: 200 I/flutter ( 5922): [request ]: method: GET baseUrl: http://www.wanandroid.com/ path: lg/collect/list/0/json I/flutter ( 5922): [reqdata ]: null I/flutter ( 5922): [response ]: {data: {curPage: 1, datas: [], offset: 0, over: true, pageCount: 0, size: 20, total: 0}, errorCode: 0, errorMsg: } ``` ### 关于作者 GitHub    : [Sky24n](https://github.com/Sky24n) 简书        : [Sky24n](https://www.jianshu.com/u/cbf2ad25d33a) 掘金        : [Sky24n](https://juejin.im/user/5b9e8a92e51d453df0440422/posts) 项目合集 : [FlutterRepos](https://github.com/Sky24n/FlutterRepos) ### Changelog Please see the [Changelog](CHANGELOG.md) page to know what's recently changed. ### Apps [flutter_wanandroid](https://github.com/Sky24n/flutter_wanandroid) [Moss](https://github.com/Sky24n/Moss). A GitHub client app developed with Flutter, which supports Android iOS Web. Web :[Flutter Web](https://sky24n.github.io/Sky24n/moss). |![](https://z3.ax1x.com/2021/04/26/gp1hm6.jpg)|![](https://z3.ax1x.com/2021/04/26/gp1Tte.jpg)|![](https://z3.ax1x.com/2021/04/26/gp17fH.jpg)| |:---:|:---:|:---:| [flutter_wanandroid_github]: https://github.com/Sky24n/flutter_wanandroid [common_utils_github]: https://github.com/Sky24n/common_utils [flustars_github]: https://github.com/Sky24n/flustars