feat: 代理设置

lib/utils/proxy.dart

@@ -0,0 +1,26 @@
+import 'dart:io';
+import 'package:system_proxy/system_proxy.dart';
+
+class CustomProxy {
+   init() async{
+    Map<String, String>? proxy = await SystemProxy.getProxySettings();
+    if (proxy != null) {
+      HttpOverrides.global = ProxiedHttpOverrides(proxy['host']!, proxy['port']!);
+    }
+  }
+}
+class ProxiedHttpOverrides extends HttpOverrides {
+  final String _port;
+  final String _host;
+
+  ProxiedHttpOverrides(this._host, this._port);
+
+  @override
+  HttpClient createHttpClient(SecurityContext? context) {
+    return super.createHttpClient(context)
+    // set proxy
+      ..findProxy = (uri) {
+        return "PROXY $_host:$_port;";
+      };
+  }
+}