E2EEChat/lib/common/global.dart

// 提供五套可选主题色
import 'dart:convert';

import 'package:e2ee_chat/common/profile.dart';
import 'package:e2ee_chat/network/api.dart';
import 'package:e2ee_chat/models/user_model.dart';
import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';

const _themes = <MaterialColor>[
  Colors.blue,
  Colors.cyan,
  Colors.teal,
  Colors.green,
  Colors.red,
];

class Global {
  static Profile profile = Profile();

  // 可选的主题列表
  static List<MaterialColor> get themes => _themes;

  // 是否为release版
  static bool get isRelease => bool.fromEnvironment("dart.vm.product");

  static final String emptyToken = "token";

  //初始化全局信息，会在APP启动时执行
  static init() async {
    var _prefs = await SharedPreferences.getInstance();
    var _profile = _prefs.getString("profile");
    if (_profile != null) {
      try {
        profile = Profile.fromJson(jsonDecode(_profile));
        profile.isLogin = false;
      } catch (e) {
        print(e);
      }
    }
    await Api.init();
    UserModel().login();
  }

  // 持久化Profile信息
  static saveProfile() async {
    var _prefs = await SharedPreferences.getInstance();
    _prefs.setString("profile", jsonEncode(profile.toJson()));
  }
}