Flutter版 WanAndroid App.

export PUB_HOSTED_URL=https://pub.flutter-io.cn  
export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn  
flutter packages get
flutter run --release

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();
  }
}

// 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<List>(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);

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();
  }
}

 class WanRepository {
  Future<List<BannerModel>> getBanner() async {
    BaseResp<List> baseResp = await DioUtil().request<List>(
        Method.get, WanAndroidApi.getPath(path: WanAndroidApi.BANNER));
    List<BannerModel> 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;
  }
}

class Colours {
  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);  
}

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;
}

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',
    }
  }
};

class TextStyles {
  static TextStyle listTitle = TextStyle(
    fontSize: Dimens.font_sp16,
    color: Colours.text_dark,
    fontWeight: FontWeight.bold,
  );
  static TextStyle listContent = TextStyle(
    fontSize: Dimens.font_sp14,
    color: Colours.text_normal,
  );
  static TextStyle listExtra = TextStyle(
    fontSize: Dimens.font_sp12,
    color: Colours.text_gray,
  );
}
//  间隔
class Gaps {
  // 水平间隔
  static Widget hGap5 = new SizedBox(width: Dimens.gap_dp5);
  static Widget hGap10 = new SizedBox(width: Dimens.gap_dp10);
  // 垂直间隔
  static Widget vGap5 = new SizedBox(height: Dimens.gap_dp5);
  static Widget vGap10 = new SizedBox(height: Dimens.gap_dp10);
}

// 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);  

// 支持复用。替换字符串格式要求：'%\${index}\$s' ，{index} 第几个参数，从0开始。
Ids.click_times: '%\$0\$s点击了%\$1\$s次',   
IntlUtil.getString(context, Ids.click_times, params: ['Tom', '$_counter'])  
// print: Tom点击了0次

// 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<MainPage> {
  @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
  
double adapterSize = ScreenUtil.getInstance().getAdapterSize(100);

//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
  
double adapterSize = ScreenUtil.getAdapterSizeCtx(context, 100)

    // 等待Sp初始化完成。
    await SpUtil.getInstance();
    
    SpUtil.getString('key', defValue: '');
    SpUtil.getInt('key', defValue: 0);
  
    /// 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("thll Str: " + (hisCity == null ? "null" : hisCity.toString()));
  
    /// save object list example.
    /// 存储实体对象List示例。
    List<City> 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<City> _cityList = SpUtil.getObjList("loc_city_list", (v) => City.fromJson(v));
    print("thll List: " + (_cityList == null ? "null" : _cityList.toString()));