flutter-sport/lib/provider/user_model.dart

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:sport/application.dart';
import 'package:sport/bean/login.dart';
import 'package:sport/bean/sport_detail.dart';
import 'package:sport/provider/bluetooth.dart';
import 'package:sport/router/navigator_util.dart';
import 'package:sport/utils/sport_utils.dart';

class UserModel with ChangeNotifier {
  User _user = User();
  String? _token;

  User get user => _user;

  String get token => _token ?? "";

  double latitude = 0, longitude = 0;
  ValueNotifier<int> durationTarget = ValueNotifier(160);
  ValueNotifier<int> runUserCount = ValueNotifier(0);

  UserModel() {
    initUser();
  }

  /// 初始化 User
  Future initUser() async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    Map<String, dynamic> map = {};
    prefs.getKeys().forEach((element) {
      map.putIfAbsent(element, () => prefs.get(element));
    });
    print(map);
    _token = prefs.getString("token");
    saveUserInfo(User.fromJson(map));

    if (prefs.containsKey("run_latitude")) {
      latitude = prefs.getDouble("run_latitude") ?? 0;
      longitude = prefs.getDouble("run_longitude") ?? 0;
    }
  }

  /// 保存用户信息到 sp
  saveUserInfo(User user) {
    _user = user;
    // print("User ${_user.gender}");
    weight = user.weight ?? 60.0;
    gender = user.gender ?? 0;
    notifyListeners();
  }

  saveUserInfoAvator(String avator) {
    _user.avatar = avator;
    notifyListeners();
  }

  clear() {
    _token = null;
  }

  logout(BuildContext context) async {
    clear();
    SharedPreferences prefs = await SharedPreferences.getInstance();
    prefs.clear();
    Provider.of<Bluetooth>(context, listen: false).clearDevice(deleteStep: true);
    NavigatorUtil.goLogin(context);
  }

  Future<String> sport(RecordsTodaySum? item) async {
    SharedPreferences prefs = await SharedPreferences.getInstance();
    int type = prefs.getInt("sport_type") ?? 0;
    int consume = item?.consume ?? 0;
    if((item?.consume_jog ?? 0) > 0 && type == 0){
      consume -= item?.consume_jog ?? 0;
      return SportUtils.calSportStr(type, SportUtils.calSportTypeData(type, consume, _user.weight ?? weight) + (item?.distance_jog ?? 0) / 1000.0);
    }else {
      return SportUtils.calSportType(type, consume, _user.weight ?? weight);
    }
  }
}