屏幕旋转

ios/Runner/AppDelegate.swift

@@ -1,13 +1,77 @@
-import Flutter
 import UIKit
+import Flutter
 
 @main
 @objc class AppDelegate: FlutterAppDelegate {
+  // 动态方向掩码（默认竖屏）
+  static var orientationMask: UIInterfaceOrientationMask = .portrait
+
   override func application(
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
+
+    let controller = window?.rootViewController as! FlutterViewController
+    let channel = FlutterMethodChannel(name: "app.orientation",
+                                       binaryMessenger: controller.binaryMessenger)
+
+    channel.setMethodCallHandler { [weak self] call, result in
+      guard let self = self else { return }
+
+      if call.method == "setOrientation" {
+        guard let arg = call.arguments as? String else {
+          result(FlutterError(code: "BAD_ARGS", message: "need 'landscape' | 'portrait'", details: nil))
+          return
+        }
+
+        // 先更新允许的方向掩码
+        if arg == "landscape" {
+          AppDelegate.orientationMask = .landscape
+        } else if arg == "portrait" {
+          AppDelegate.orientationMask = .portrait
+        } else {
+          result(FlutterError(code: "BAD_ARGS", message: "unknown arg", details: nil))
+          return
+        }
+
+
+        // 再请求实际旋转
+        if #available(iOS 16.0, *) {
+            // 通知顶层 VC：其 supportedInterfaceOrientations 需要刷新
+            self.window?.rootViewController?.setNeedsUpdateOfSupportedInterfaceOrientations()
+
+          if let scene = self.window?.windowScene {
+            let orientations: UIInterfaceOrientationMask =
+              (arg == "landscape") ? .landscape : .portrait
+            do {
+              try scene.requestGeometryUpdate(.iOS(interfaceOrientations: orientations))
+            } catch {
+              result(FlutterError(code: "GEOMETRY_UPDATE_FAILED",
+                                  message: error.localizedDescription, details: nil))
+              return
+            }
+          }
+        } else {
+          let target: UIInterfaceOrientation =
+            (arg == "landscape") ? .landscapeLeft : .portrait
+          UIDevice.current.setValue(target.rawValue, forKey: "orientation")
+          UIViewController.attemptRotationToDeviceOrientation()
+        }
+
+        result(true)
+      } else {
+        result(FlutterMethodNotImplemented)
+      }
+    }
+
     GeneratedPluginRegistrant.register(with: self)
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
+
+  // 关键：把当前的掩码提供给系统
+  override func application(_ application: UIApplication,
+                            supportedInterfaceOrientationsFor window: UIWindow?)
+    -> UIInterfaceOrientationMask {
+    return AppDelegate.orientationMask
+  }
 }

lib/pages/http/HttpManager.dart

@@ -86,17 +86,13 @@ class HttpManager {
       }) async {
     Response resp;
     final url = baseUrl + path;
-    final options = Options(
-      method: method.name.toUpperCase(),
-      contentType: headerType,
-    );
 
     try {
       switch (method) {
         case Method.get:
           final queryParameters = <String, dynamic>{};
-          if (params != null) queryParameters.addAll(params);
-          if (data != null) queryParameters.addAll(data);
+          if (params != null && params.isNotEmpty) queryParameters.addAll(params);
+          if (data != null && data.isNotEmpty) queryParameters.addAll(data);
           resp = await _dio.get(
             url,
             queryParameters: queryParameters,

lib/tools/tools.dart

@@ -1,5 +1,6 @@
 import 'dart:math';
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:package_info_plus/package_info_plus.dart';
 import 'package:flutter_easyloading/flutter_easyloading.dart';
 
@@ -397,3 +398,13 @@ class NoDataWidget {
   }
 
 }
+class NativeOrientation {
+  static const MethodChannel _channel = MethodChannel('app.orientation');
+
+  static Future<void> setLandscape() async {
+    await _channel.invokeMethod('setOrientation', 'landscape');
+  }
+  static Future<void> setPortrait() async {
+    await _channel.invokeMethod('setOrientation', 'portrait');
+  }
+}