自动下载添加

src/views/land/index.vue

@@ -79,6 +79,11 @@ import pc2 from "./components/pc2";
 import tips from "./components/tips";
 import selectLinePopup from "./components/selectLinePopup";
 import { getTraceId } from "@/utils/traceId";
+
+// 渠道包自动下载：进页面多久后触发
+const AUTO_DOWNLOAD_DELAY = 3000;
+// 社媒内置浏览器（Twitter / TikTok / Instagram 等）会拦截 APK 跳转，不做自动下载
+const SOCIAL_IN_APP_RE = /Twitter|Instagram|BytedanceWebview|TikTok|musical_ly|musical\.ly|Aweme/i;
 export default {
   components: {
     mobile1,
@@ -100,7 +105,9 @@ export default {
       apiUrls: JSON.parse(process.env.VUE_APP_BASE_HOSTS), // api数组
       showOverlay: false, // 显示选线弹窗
       version: "A",
-      trace_id: getTraceId()
+      trace_id: getTraceId(),
+      initPromise: null, // init 只跑一次：自动下载和页面初始化共用这一份请求
+      autoDownloadFired: false // 渠道包自动下载只触发一次
     };
   },
 
@@ -114,6 +121,8 @@ export default {
     this.getPcUrl();
     this.os = userAgent();
     this.init();
+    // 渠道包：安卓端进页面 3 秒后自动下载 APK（bottonlist 没返回 channelApkAndDownUrl 时不触发）
+    this.autoDownloadChannelApk();
     const referrer = document.referrer;
     if (referrer) {
       sessionStorage.setItem("referrer", referrer);
@@ -129,9 +138,44 @@ export default {
     getPcUrl() {
       this.page_pc_url = window.location.href;
     },
-    async init() {
-      await this.getIp();
-      await this.getButtonlist();
+    init() {
+      if (!this.initPromise) {
+        this.initPromise = (async () => {
+          await this.getIp();
+          await this.getButtonlist();
+        })();
+      }
+      return this.initPromise;
+    },
+    /**
+     * 渠道包自动下载：bottonlist 返回 channelApkAndDownUrl 有值时，
+     * 安卓端进页面 delay 毫秒后自动拉起该 APK（整个页面生命周期只触发一次）。
+     * iOS 装不了 APK、社媒内置浏览器会被拦截跳出，这两种情况都跳过，交给用户手动点。
+     */
+    async autoDownloadChannelApk(delay = AUTO_DOWNLOAD_DELAY) {
+      const ua = navigator.userAgent;
+      const isIos = /iphone|ipad|ipod/i.test(ua);
+      if (this.autoDownloadFired || isIos || SOCIAL_IN_APP_RE.test(ua)) return;
+      this.autoDownloadFired = true;
+      try {
+        // 计时与拉接口并行：3 秒从进页面算起，接口慢就等接口回来再下
+        await Promise.all([
+          this.init(),
+          new Promise(resolve => setTimeout(resolve, delay))
+        ]);
+        const url = String(
+          (this.switchData && this.switchData.channelApkAndDownUrl) || ""
+        ).trim();
+        if (!url) return;
+        await this.doCopy(); // 写归因剪贴板
+        // 自动下载同样记一次点击，统计口径与手动点下载一致
+        this.fetchLinks("android").catch(err =>
+          console.log("自动下载埋点失败" + err)
+        );
+        this.jumpToLink(url);
+      } catch (err) {
+        console.log("渠道包自动下载失败" + err);
+      }
     },
     // 去掉空值后序列化渠道参数
     filterChannel() {