Flutter版 WanAndroid App,flutter蓝牙接收数据

api

class WanAndroidApi {

/// 首页banner http://www.wanandroid.com/banner/json

static const String BANNER = “banner”;

static const String USER_REGISTER = “user/register”; //注册

static const String USER_LOGIN = “user/login”; //登录

static const String USER_LOGOUT = “user/logout”; //退出

// 拼接url

static String getPath({String path: ‘’, int page, String resType: ‘json’}) {

StringBuffer sb = new StringBuffer(path);

if (page != null) {

sb.write(’/$page’);

}

if (resType != null && resType.isNotEmpty) {

sb.write(’/$resType’);

}

return sb.toString();

}

}

请求与返回实体类 protocol

class LoginReq {

String username;

String password;

LoginReq(this.username, this.password);

LoginReq.fromJson(Map<String, dynamic> json)
username = json[‘username’],

password = json[‘password’];

Map<String, dynamic> toJson() => {

‘username’: username,

‘password’: password,

};

@override

String toString() {

StringBuffer sb = new StringBuffer(’{’);

sb.write("“username”:"$username"");

sb.write(",“password”:$password");

sb.write(’}’);

return sb.toString();

}

}

接口请求&解析 repository

class WanRepository {

Future<List> getBanner() async {

BaseResp baseResp = await DioUtil().request(

Method.get, WanAndroidApi.getPath(path: WanAndroidApi.BANNER));

List bannerList;

if (baseResp.code != Constant.STATUS_SUCCESS) {

return new Future.error(baseResp.msg);

}

if (baseResp.data != null) {

bannerList = baseResp.data.map((value) {

return BannerModel.fromJson(value);

}).toList();

}

return bannerList;

}

}

资源文件 resources


  • |–resources
*   |-- colors.dart
*   |-- dimens.dart
*   |-- strings.dart
*   |-- styles.dart

colors.dart

class ColorT {

static const Color app_main = Color(0xFF666666);

static const Color text_dark = Color(0xFF333333);

static const Color text_normal = Color(0xFF666666);

static const Color text_gray = Color(0xFF999999);

}

dimens.dart

class Dimens {

static const double font_sp12 = 12;

static const double font_sp14 = 14;

static const double font_sp16 = 16;

static const double gap_dp5 = 5;

static const double gap_dp10 = 10;

}

strings.dart

class Ids {

static const String titleHome = ‘title_home’;

}

Map<String, Map<String, Map<String, String>>> localizedValues = {

‘en’: {

‘US’: {

Ids.titleHome: ‘Home’,

}

},

‘zh’: {

‘CN’: {

Ids.titleHome: ‘主页’,

},

‘HK’: {

Ids.titleHome: ‘主頁’,

},

‘TW’: {

Ids.titleHome: ‘主頁’,

}

}

};

styles.dart

class TextStyles {

static TextStyle listTitle = TextStyle(

fontSize: Dimens.font_sp16,

color: ColorT.text_dark,

fontWeight: FontWeight.bold,

);

static TextStyle listContent = TextStyle(

fontSize: Dimens.font_sp14,

color: ColorT.text_normal,

);

static TextStyle listExtra = TextStyle(

fontSize: Dimens.font_sp12,

color: ColorT.text_gray,

);

}

Flutter 国际化相关

fluintl 是一个为应用提供国际化的库,可快速集成实现应用多语言。该库封装了一个国际化支持类,通过提供统一方法getString(id)获取字符串。

// 在MyApp initState配置多语言资源

setLocalizedValues(localizedValues); //配置多语言资源

// 在MaterialApp指定localizationsDelegates和supportedLocales

MaterialApp(

home: MyHomePage(),

localizationsDelegates: [

GlobalMaterialLocalizations.delegate,

GlobalWidgetsLocalizations.delegate,

CustomLocalizations.delegate //设置本地化代理

],

supportedLocales: CustomLocalizations.supportedLocales,//设置支持本地化语言集合

);

// 字符串获取

IntlUtil.getString(context, Ids.titleHome);

CustomLocalizations.of(context).getString(StringIds.titleHome);

Flutter 屏幕适配 ScreenUtil

方案一、不依赖context

步骤 1

//如果设计稿尺寸默认配置一致,无需该设置。 配置设计稿尺寸 默认 360.0 / 640.0 / 3.0

setDesignWHD(_designW,_designH,_designD);

步骤 2

// 在MainPageState build 调用MediaQuery.of(context)

class MainPageState extends State {

@override

Widget build(BuildContext context) {

// 在 MainPageState build 调用 MediaQuery.of(context)

MediaQuery.of(context);

return new Scaffold(

appBar: new AppBar(),

);

}

}

步骤 3

ScreenUtil.getInstance().screenWidth

ScreenUtil.getInstance().screenHeight

//屏幕适配相关

ScreenUtil.getInstance().getWidth(size); //返回根据屏幕宽适配后尺寸(单位 dp or pt)

ScreenUtil.getInstance().getHeight(size); //返回根据屏幕高适配后尺寸 (单位 dp or pt)

ScreenUtil.getInstance().getWidthPx(sizePx); //sizePx 单位px

ScreenUtil.getInstance().getHeightPx(sizePx); //sizePx 单位px

ScreenUtil.getInstance().getSp(fontSize); //返回根据屏幕宽适配后字体尺寸

方案二、依赖context

//如果设计稿尺寸默认配置一致,无需该设置。 配置设计稿尺寸 默认 360.0 / 640.0 / 3.0

setDesignWHD(_designW,_designH,_designD);

ScreenUtil.getScreenW(context); //屏幕 宽

ScreenUtil.getScreenH(context); //屏幕 高

//屏幕适配相关

ScreenUtil.getScaleW(context, size); //返回根据屏幕宽适配后尺寸(单位 dp or pt)

ScreenUtil.getScaleH(context, size); //返回根据屏幕高适配后尺寸 (单位 dp or pt)

ScreenUtil.getScaleSp(context, size) ;//返回根据屏幕宽适配后字体尺寸

Flutter 数据存储 SpUtil

SpUtil : 单例"同步" SharedPreferences 工具类。

项目中为大家提供SpHelper,方便存取实体对象类。

// 存储SplashModel实体对象

SplashModel model = new SplashModel();

SpHelper.putObject(Constant.KEY_SPLASH_MODEL, model);

// 获取SplashModel实体对象

SplashModel model = SpHelper.getSplashModel();

class SpHelper {

// 存储Obj,T 用于区分存储类型

static void putObject(String key, Object value) {

switch (T) {

case int:

SpUtil.putInt(key, value);

break;

case double:

SpUtil.putDouble(key, value);

break;

case bool:

SpUtil.putBool(key, value);

break;

case String:

SpUtil.putString(key, value);

break;

case List:

SpUtil.putStringList(key, value);

break;

default:

SpUtil.putString(key, value == null ? “” : json.encode(value));

break;

}

}

static SplashModel getSplashModel() {

String _splashModel = SpUtil.getString(Constant.KEY_SPLASH_MODEL);

if (ObjectU

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til.isNotEmpty(_splashModel)) {

Map userMap = json.decode(_splashModel);

return SplashModel.fromJson(userMap);

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