zhiying_base_widget/lib/pages/login_page/login_util.dart

import 'package:zhiying_base_widget/pages/login_page/model/login_model.dart';
import 'package:zhiying_comm/zhiying_comm.dart';
import 'package:zhiying_comm/util/shared_prefe_util.dart';
import 'package:zhiying_comm/util/empty_util.dart';
import 'package:zhiying_comm/util/global_config.dart';

/// 登陆数据管理工具类
class LoginUtil{

  static final String _URL = '/api/v1/sign/in';

  static void init() async{
    String key = _getCacheKey();
    /// 清除数据缓存
    await SharedPreferencesUtil.setNetCacheResult(key, '');
  }

  /// 获取数据
  static Future<LoginModel> getLoginModel() async{
    var cache = await _fetchCachePageData();
    if (!EmptyUtil.isEmpty(cache)) return cache;
    var result  = await _fetchNetPageData();
    if(!EmptyUtil.isEmpty(result)) return result;

    return null;
  }


  /// 获取缓存的key
  static String _getCacheKey(){
    return NetUtil.getRequestParamsCachedKey(null, _URL);
  }


  /// 获取缓存的页面数据
  static Future<LoginModel> _fetchCachePageData() async {
    var result = await NetUtil.getRequestCachedData(_URL);
    if (!EmptyUtil.isEmpty(result)) {
      LoginModel model = LoginModel.fromJson(result);
      return model;
    }
    return null;
  }

  /// 获取页面数据
  static Future<LoginModel> _fetchNetPageData() async {
    var result = await NetUtil.post(_URL, method: NetMethod.GET);
    if (NetUtil.isSuccess(result) && !EmptyUtil.isEmpty(result[GlobalConfig.HTTP_RESPONSE_KEY_DATA])) {
      LoginModel model = LoginModel.fromJson(result[GlobalConfig.HTTP_RESPONSE_KEY_DATA]);
      return model;
    }
    return null;
  }

}