增加若干基础页面

lib/utils/request.dart

@@ -0,0 +1,85 @@
+import 'package:dio/dio.dart';
+import 'package:flutter_jdt_store/utils/utils.dart';
+
+class Request {
+  // 构造函数
+  Request() {
+    init();
+  }
+
+  static final Dio _dio = Dio();
+
+  static void init() {
+    // 基本配置
+    _dio.options.baseUrl =
+        "https://www.wanzhuanyongcheng.cn/app"; // 替换为你的 API 地址
+    _dio.options.connectTimeout = const Duration(seconds: 15); // 连接超时时间，单位是毫秒
+    _dio.options.receiveTimeout = const Duration(seconds: 15); // 接收超时时间，单位是毫秒
+
+    _dio.options.headers["Content-Type"] = "application/json; charset=utf-8";
+
+    _dio.options.headers["token"] = StorageUtil().getString("token");
+
+    // 添加请求拦截器
+    _dio.interceptors.add(InterceptorsWrapper(
+      onRequest: (options, handler) {
+        // 在请求被发送之前做一些事情
+        return handler.next(options); // 必须返回 options
+      },
+    ));
+
+    // 添加响应拦截器
+    _dio.interceptors.add(InterceptorsWrapper(
+      onResponse: (response, handler) {
+        // 在响应被处理之前做一些事情
+        final Map<String, dynamic> data = response.data;
+        // 状态码不等于200时抛出异常
+        if (data["code"] != 200) {
+          ToolFn.tips(data["msg"].toString());
+          throw DioException(
+            requestOptions: response.requestOptions,
+            response: response,
+            error: data["msg"],
+          );
+        }
+        return handler.next(response); // 必须返回 response
+      },
+      onError: (DioException e, handler) {
+        // 在响应错误被处理之前做一些事情
+        return handler.next(e); // 必须返回 error
+      },
+    ));
+  }
+
+  static Future<T> get<T>(String path, {Map<String, dynamic>? params}) async {
+    try {
+      final Response<T> response =
+          await _dio.get<T>(path, queryParameters: params);
+      return response.data!;
+    } catch (error) {
+      throw _handleError(error);
+    }
+  }
+
+  static Future<T> post<T>(String path, {Map<String, dynamic>? data}) async {
+    try {
+      final Response<T> response = await _dio.post<T>(path, data: data);
+      return response.data!;
+    } catch (error) {
+      throw _handleError(error);
+    }
+  }
+
+  // 处理错误
+  static Exception _handleError(error) {
+    if (error is DioException) {
+      String message = "网络请求失败";
+      if (error.response != null && error.response!.data != null) {
+        message = error.response!.data.toString();
+      }
+      return Exception(message);
+    } else {
+      return Exception("未知错误");
+    }
+  }
+}

lib/utils/tool.dart

@@ -1,9 +1,45 @@
+import 'dart:io';
+
+import 'package:bot_toast/bot_toast.dart';
+import 'package:flutter/material.dart';
+
 class ToolFn {
+  DateTime? lastPressedAt; //上次点击时间
+
   // 字符串是否为空
-  static bool isBlank(String? str) {
-    if (str == null || str.isEmpty) {
+  static bool isBlank(String str) {
+    if (str.isEmpty) {
       return true;
     }
     return false;
   }
+
+  ///手机号验证(只验证前三位号段)
+  static bool checkMobile(String str) {
+    if (isBlank(str)) {
+      return true;
+    }
+    return !RegExp(r"^1(3\d|4[5-9]|5[0-35-9]|6[567]|7[0-8]|8\d|9[0-35-9])\d{8}")
+        .hasMatch(str);
+  }
+
+  static void tips(String msg) {
+    BotToast.showText(
+        text: msg,
+        contentColor: Colors.black,
+        textStyle: const TextStyle(fontSize: 17, color: Colors.white));
+  }
+
+  // 监听返回键
+  void isExit() {
+    if (lastPressedAt == null ||
+        DateTime.now().difference(lastPressedAt!) >
+            const Duration(seconds: 1)) {
+      //两次点击间隔超过1秒则重新计时
+      lastPressedAt = DateTime.now();
+      ToolFn.tips("再按一次退出程序");
+      return;
+    }
+    exit(0);
+  }
 }

lib/utils/utils.dart

@@ -3,4 +3,5 @@ library utils;
 export 'logger.dart';
 export 'status_bar.dart';
 export 'storage.dart';
-export 'tool.dart';
+export 'tool.dart';
+export 'request.dart';