平台判断辅助工具类：PlatformHelper.ts

assets/Scripts/Main/Channel/PlatformHelper.ts

@@ -0,0 +1,91 @@
+import { sys } from "cc";
+
+/**
+ * 跨平台辅助工具类
+ * 统一封装常见平台的判断逻辑
+ */
+export class PlatformHelper {
+    
+    /** 是否微信小游戏 */
+    public static isWechat(): boolean {
+        return sys.platform === sys.Platform.WECHAT_GAME && typeof window["wx"] !== "undefined";
+    }
+
+    /** 是否字节跳动（抖音/头条）小游戏 */
+    public static isByteDance(): boolean {
+        return sys.platform === sys.Platform.BYTEDANCE_MINI_GAME && typeof window["tt"] !== "undefined";
+    }
+
+    /** 是否快手小游戏 */
+    public static isKuaishou(): boolean {
+        return typeof window["ks"] !== 'undefined';
+    }    
+
+    /** 是否百度小游戏 */
+    public static isBaidu(): boolean {
+        return sys.platform === sys.Platform.BAIDU_MINI_GAME;
+    }
+
+    /** 是否支付宝/阿里小游戏 */
+    public static isAlipay(): boolean {
+        return sys.platform === sys.Platform.ALIPAY_MINI_GAME;
+    }
+
+    /** 是否 Oppo 小游戏 */
+    public static isOppo(): boolean {
+        return sys.platform === sys.Platform.OPPO_MINI_GAME;
+    }
+
+    /** 是否 Vivo 小游戏 */
+    public static isVivo(): boolean {
+        return sys.platform === sys.Platform.VIVO_MINI_GAME;
+    }
+
+    /** 是否华为快应用 */
+    public static isHuawei(): boolean {
+        return sys.platform === sys.Platform.HUAWEI_QUICK_GAME;
+    }
+
+    /** 是否Windows桌面 */
+    public static isWinDesktop(): boolean {
+        return sys.platform === sys.Platform.WIN32;
+    }
+
+    /** 是否MacOS桌面 */
+    public static isMacOSDesktop(): boolean {
+        return sys.platform === sys.Platform.MACOS;
+    }
+
+    /** 是否桌面（Windows 或 MacOS） */
+    public static isDesktop(): boolean {
+        return sys.platform === sys.Platform.WIN32 || sys.platform === sys.Platform.MACOS;
+    }
+
+    /** 是否原生 Android */
+    public static isAndroid(): boolean {
+        return sys.isNative && sys.os === sys.OS.ANDROID;
+    }
+
+    /** 是否原生 iOS */
+    public static isIOS(): boolean {
+        return sys.isNative && sys.os === sys.OS.IOS;
+    }    
+
+    /** 获取当前平台名称（调试用） */
+    public static getPlatformName(): string {
+        if (this.isWechat()) return "微信小游戏";
+        if (this.isByteDance()) return "字节跳动小游戏";
+        if (this.isKuaishou()) return "快手小游戏";
+        if (this.isBaidu()) return "百度小游戏";
+        if (this.isAlipay()) return "支付宝小游戏";
+        if (this.isOppo()) return "Oppo 小游戏";
+        if (this.isVivo()) return "Vivo 小游戏";
+        if (this.isHuawei()) return "华为快应用";
+        if (this.isWinDesktop()) return "Windows 桌面";
+        if (this.isMacOSDesktop()) return "MacOS 桌面";
+        if (this.isAndroid()) return "原生 Android";
+        if (this.isIOS()) return "原生 iOS";
+        // 兜底
+        return "未知平台";
+    }
+}

assets/Scripts/Main/Channel/PlatformHelper.ts.meta

@@ -0,0 +1,9 @@
+{
+  "ver": "4.0.24",
+  "importer": "typescript",
+  "imported": true,
+  "uuid": "669465b9-541e-4a6e-92ef-c90e11fd463d",
+  "files": [],
+  "subMetas": {},
+  "userData": {}
+}

assets/Scripts/Main/Channel/SDKManager.ts

@@ -8,6 +8,7 @@ import AudioManager from "../Manager/AudioManager";
 import GlobalValue, { VideoRoleType } from "../Common/GlobalValue";
 import { luffaSDK } from "./luffaSDK";
 import { logger } from "db://assets/Scripts/Main/Common/Logger";
+import { PlatformHelper } from "./PlatformHelper";
 
 const { ccclass, property } = _decorator;
 
@@ -91,13 +92,13 @@ export class SDKManager {   //extends Component
 		logger.log("平台值 ks:",window["ks"], typeof window["ks"])
 		logger.log("平台值 tt:",window["tt"], typeof window["tt"])
 
-		if (typeof window["ks"] !== 'undefined') {
+		if (PlatformHelper.isKuaishou()) {
 			this.sdk_channel = E_SDK_Channel.KS
 			this.sdk = new KSSDK() //快手
-		}else if (sys.platform === sys.Platform.WECHAT_GAME && typeof window["wx"] !== 'undefined') {
+		}else if (PlatformHelper.isWechat()) {
 			this.sdk_channel = E_SDK_Channel.WX
 			this.sdk = new luffaSDK() //微信
-		} else if (sys.platform === sys.Platform.BYTEDANCE_MINI_GAME && typeof window["tt"] !== 'undefined') {
+		} else if (PlatformHelper.isByteDance()) {
 			this.sdk_channel = E_SDK_Channel.BD
 			this.sdk = new ByteDanceSDK() //抖音(头条)
 		} else {
@@ -105,7 +106,7 @@ export class SDKManager {   //extends Component
 		    this.sdk = new WebSDK()
 		}
 
-		logger.log("当前平台:",sys.platform, this.sdk_channel)
+		logger.log("当前平台:", PlatformHelper.getPlatformName(), this.sdk_channel)
 		if (GlobalValue.NpcVideoMod) {
 			GlobalValue.NpcVideoMod = this.sdk_channel === E_SDK_Channel.WX || this.sdk_channel === E_SDK_Channel.WEB
 		}

assets/Scripts/Sub/GameEntry.ts

@@ -1,6 +1,7 @@
 import { _decorator, assetManager, Component, game, macro, sys } from "cc";
 import { SDKManager } from "../Main/Channel/SDKManager";
 import PlayerDataManager from "../Main/Manager/PlayerDataManager";
+import { PlatformHelper } from "../Main/Channel/PlatformHelper";
 
 const { ccclass, property } = _decorator;
 
@@ -14,7 +15,7 @@ export class GameEntry extends Component {
 
         assetManager.downloader.maxConcurrency = 20;
         assetManager.downloader.maxRequestsPerFrame = 10;
-        if (sys.platform == sys.Platform.WECHAT_GAME) {
+        if (PlatformHelper.isWechat()) {
             assetManager.cacheManager.cacheEnabled = true;
             macro.CLEANUP_IMAGE_CACHE = true;
             // DynamicAtlasManager.instance.enabled = false;   //关闭动态图集