feat(migrate): 将之前写好的部件迁移了过来

lib/common/access_control_filter.dart

@@ -0,0 +1,103 @@
+import 'package:flutter/material.dart';
+import 'global.dart';
+import 'package:bistro/mine/login.dart';
+
+typedef ACFCallback = Future Function(Map userInfo);
+
+///
+/// 登录状态检查
+///
+class AccessControlFilter extends StatefulWidget {
+  /// 头部
+  final AppBar? appBar;
+
+  /// 标题
+  final String? title;
+
+  /// 内容组件
+  final Widget child;
+
+  /// 未登录的显示
+  final Widget? didNotLoginWidget;
+
+  const AccessControlFilter({
+    required Key key,
+    this.appBar,
+    this.title,
+    required this.child,
+    this.didNotLoginWidget,
+  }) : super(key: key);
+
+  @override
+  _AccessControlFilterState createState() => _AccessControlFilterState();
+}
+
+class _AccessControlFilterState extends State<AccessControlFilter> {
+  /// 登录状态
+  bool _isLogin = false;
+
+  @override
+  void initState() {
+    super.initState();
+
+    _updateUserState();
+  }
+
+  @override
+  void didUpdateWidget(AccessControlFilter oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    _updateUserState();
+  }
+
+  /// 更新用户信息
+  void _updateUserState({data}) {
+//    final Map userInfo = data != null ? data : UserInfo().userInfo;
+//    final bool isLogin = userInfo != null && userInfo.length != 0;
+//    setState(() {
+//      _isLogin = isLogin;
+//    });
+  }
+
+  /// 未登录的显示
+  Widget? _didNotLoginWidget() {
+    // 如果传入的未登录情况下显示的组件，则采用传入的
+    if (widget.didNotLoginWidget != null) return widget.didNotLoginWidget;
+
+    // 缺省的未登录情况下的显示
+    return Center(
+      child: RaisedButton(
+        color: Colors.blueAccent,
+        textTheme: ButtonTextTheme.primary,
+        child: const Text('请先登录'),
+        onPressed: () {
+          Navigator.push(
+            context,
+            MaterialPageRoute(
+              builder: (BuildContext context) {
+                return Login(
+                  successCallback: (Map data) {
+                    _updateUserState(data: data);
+                    printWhenDebug('登录成功');
+                  },
+                  key: widget.key ?? const Key('acf'),
+                );
+              },
+            ),
+          );
+        },
+      ),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: widget.appBar ??
+          AppBar(
+            centerTitle: true,
+            title: Text(widget.title ?? ""),
+          ),
+      body: _isLogin ? widget.child : _didNotLoginWidget(),
+    );
+  }
+}

lib/common/global.dart

@@ -0,0 +1,112 @@
+import 'dart:convert';
+
+import 'package:dio/dio.dart';
+import 'package:dio_http_cache/dio_http_cache.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+// 提供五套可选主题色
+const _themes = <MaterialColor>[
+  Colors.blue,
+  Colors.cyan,
+  Colors.teal,
+  Colors.green,
+  Colors.red,
+];
+
+///
+/// 当调试模式打开时打印
+///
+void printWhenDebug(Object object) {
+  if (Global.debug) {
+    if (kDebugMode) {
+      print(object);
+    }
+  }
+}
+
+///
+/// 当前环境
+///
+enum Env {
+  dev,
+  pro,
+}
+
+class Global {
+  static SharedPreferences? _prefs;
+  static Dio? dio;
+  static Map profile = {};
+  static bool debug = false;
+  ///
+  /// 当前环境
+  ///
+  static const Env env = Env.dev;
+
+
+  ///
+  /// 根域名
+  ///
+  static const Map baseUrlList = {
+    Env.dev: 'http://safe.doylee.cn',
+    // Env.dev:   'http://192.168.31.189/campus_safety',
+    Env.pro: 'http://10.111.2.158',
+  };
+
+  ///
+  /// 接口根路由
+  ///
+  static String baseUrl = baseUrlList[env];
+
+  // 网络缓存对象
+  static DioCacheManager netCache = DioCacheManager(
+    CacheConfig(
+      baseUrl: baseUrl,
+    ),
+  );
+
+  // 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");
+
+  //初始化全局信息，会在APP启动时执行
+  static Future init() async {
+    dio = Dio();
+    // 添加拦截器
+    dio?.interceptors.add(netCache.interceptor);
+
+    // 初始化用户信息
+    _prefs = await SharedPreferences.getInstance();
+    var _profile = _prefs?.getString("user_info");
+    if (_profile != null) {
+      try {
+        if (kDebugMode) {
+          print('开始读取用户信息...');
+        }
+        profile = jsonDecode(_profile);
+        if (kDebugMode) {
+          print('用户信息读取成功');
+        }
+      } catch (e) {
+        if (kDebugMode) {
+          print(e);
+        }
+      }
+    }
+  }
+
+  // 持久化Profile信息
+  static Future<bool>? saveProfile({required Map userInfo}) {
+    profile = userInfo;
+    final userJson = jsonEncode(userInfo);
+    return _prefs?.setString("user_info", userJson);
+  }
+
+  /// 读取持久化Profile信息
+  static Future<Map> getProfile() {
+    return jsonDecode(_prefs?.getString("user_info") ?? '{}');
+  }
+}