1、调试动态设置网络请求代理

example/lib/main.dart

@@ -5,8 +5,10 @@ import 'package:flutter_clx_base_example/sample.dart';
 import 'package:flutter_clx_base_example/sample/dio/dio_utils.dart';
 import 'package:flutter_localizations/flutter_localizations.dart';
 
-void main() {
+void main() async {
+  WidgetsFlutterBinding.ensureInitialized();
   DioUtils.instance.initConfig();
+  await SpUtil.getInstance();
   runApp(const MyApp());
 }
 

example/lib/sample/dio_widget_test.dart

@@ -44,6 +44,7 @@ class _DioWidgetTestState extends State<DioWidgetTest> {
               );
             },
             child: const Text('dio请求')),
+        setProxyWidget(context, dio: DioUtils.instance.dio, isProEnv: false)
       ],
     );
   }

lib/api/base_dio.dart

@@ -5,9 +5,12 @@ import 'package:flutter_clx_base/api/transformer.dart';
 import 'package:flutter_clx_base/utils/log_utils.dart';
 import 'package:flutter_clx_base/utils/toast_util.dart';
 import 'package:pretty_dio_logger/pretty_dio_logger.dart';
+
 export 'package:dio/dio.dart';
 export 'package:dio/io.dart';
 
+export 'proxy.dart';
+
 abstract class BaseDio {
   final dio = Dio(
     BaseOptions(

lib/api/proxy.dart

+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_clx_base/flutter_clx_base.dart';
+
+import 'base_dio.dart';
+
+const spProxyIp = "proxyIP"; // ip
+const spProxyPort = "proxyPort"; // port
+const spSwitchProxy = "switchProxy"; // 开关代理
+
+/// dio 设置代理uri
+void setProxyUri(Dio? dio, bool isProEnv) {
+  String? proxyIP = SpUtil.getString(spProxyIp);
+  String? proxyPort = SpUtil.getString(spProxyPort);
+
+  (dio?.httpClientAdapter as IOHttpClientAdapter?)?.onHttpClientCreate =
+      (HttpClient client) {
+    // 是否设置代理：非生产环境，开启代理后，设置代理
+    bool isSetProxy = !isProEnv &&
+        proxyIP != null &&
+        proxyIP.isNotEmpty &&
+        proxyPort != null &&
+        proxyPort.isNotEmpty &&
+        SpUtil.getBool(spSwitchProxy) == true;
+    client.findProxy =
+        (uri) => isSetProxy ? "PROXY $proxyIP:$proxyPort" : "DIRECT";
+    client.badCertificateCallback =
+        (X509Certificate cert, String host, int port) => true;
+    return client;
+  };
+}
+
+/// 设置代理widget
+/// isProEnv 是否是生产环境，生产环境禁止抓包
+setProxyWidget(context, {required Dio? dio, required bool isProEnv}) {
+  logger.d("===== isProEnv = $isProEnv");
+  return (isProEnv)
+      ? Container()
+      : InkWell(
+          onTap: () => setProxyDialog(context, dio, isProEnv),
+          child: Container(
+            height: 50.0,
+            padding: const EdgeInsets.only(left: 15.0, right: 15.0),
+            color: Colors.white,
+            margin: const EdgeInsets.only(top: 1.0),
+            child: const Row(
+              children: <Widget>[
+                Expanded(
+                  child: Text("设置代理", style: TextStyle(fontSize: 15.0)),
+                ),
+                Icon(Icons.arrow_forward_ios, color: Colors.grey, size: 16.0)
+              ],
+            ),
+          ),
+        );
+}
+
+var ipController = TextEditingController();
+var portController = TextEditingController();
+
+/// 设置代理dialog
+setProxyDialog(context, dio, isProEnv) {
+  ipController.text = SpUtil.getString(spProxyIp) ?? "";
+  portController.text = SpUtil.getString(spProxyPort) ?? "";
+  showDialog(
+    context: context,
+    builder: (BuildContext context) {
+      return SimpleDialog(
+        title: const Text("设置代理", textAlign: TextAlign.center),
+        children: [
+          _textFieldItem(title: "IP地址:", controller: ipController),
+          _textFieldItem(title: "端\t\t\t\t口:", controller: portController),
+          Row(
+            children: [
+              const SizedBox(width: 20.0),
+              const Text("开启代理："),
+              const Spacer(),
+              Builder(builder: (context) {
+                return Switch(
+                    activeColor: Colors.blue,
+                    activeTrackColor: Colors.grey,
+                    inactiveThumbColor: Colors.blue,
+                    inactiveTrackColor: Colors.grey,
+                    value: SpUtil.getBool(spSwitchProxy) ?? false,
+                    onChanged: (bool value) {
+                      SpUtil.putBool(spSwitchProxy, value);
+                      (context as Element).markNeedsBuild();
+                    });
+              }),
+              const SizedBox(width: 20.0),
+            ],
+          ),
+          InkWell(
+            onTap: () {
+              if (!_checkInfo()) {
+                return;
+              }
+              SpUtil.putString(
+                  spProxyIp, ipController.value.text.toString().trim());
+              SpUtil.putString(
+                  spProxyPort, portController.value.text.toString().trim());
+              setProxyUri(dio, isProEnv);
+            },
+            child: Container(
+              margin: const EdgeInsets.only(
+                  left: 30.0, right: 30.0, top: 30.0, bottom: 15.0),
+              padding: const EdgeInsets.symmetric(vertical: 12.0),
+              decoration: BoxDecoration(
+                color: Colors.blue,
+                borderRadius: BorderRadius.circular(50.0),
+              ),
+              alignment: Alignment.center,
+              child: const Text("确定", style: TextStyle(color: Colors.white)),
+            ),
+          )
+        ],
+      );
+    },
+  );
+}
+
+///校验信息
+bool _checkInfo() {
+  String ip = ipController.value.text.toString().trim();
+  String port = portController.value.text.toString().trim();
+  bool setProxy = SpUtil.getBool(spSwitchProxy) ?? false;
+  if (!setProxy) return true;
+  if (ip.isEmpty) {
+    ToastUtil.showToast("请输入ip地址");
+    return false;
+  }
+  if (port.isEmpty) {
+    ToastUtil.showToast("请输入端口号");
+    return false;
+  }
+  return true;
+}
+
+/// ip、端口 输入框
+Widget _textFieldItem({title, controller}) {
+  return Container(
+    padding: const EdgeInsets.symmetric(horizontal: 20.0),
+    margin: const EdgeInsets.symmetric(horizontal: 20.0, vertical: 10.0),
+    decoration: BoxDecoration(
+      border: Border.all(color: Colors.grey.shade300),
+    ),
+    child: Row(
+      children: <Widget>[
+        Text(title, style: const TextStyle(fontSize: 15.0)),
+        Expanded(
+          child: Padding(
+            padding: const EdgeInsets.only(left: 5.0),
+            child: TextField(
+              maxLines: 1,
+              controller: controller,
+              keyboardType: TextInputType.number,
+              decoration: const InputDecoration(
+                counterText: "",
+                border: InputBorder.none, //去掉下划线
+              ),
+            ),
+          ),
+        ),
+      ],
+    ),
+  );
+}