From 68fc21992bdc21792a527b36fc3a02f6b7c57812 Mon Sep 17 00:00:00 2001
From: zhoulinf <2507241354@qq.com>
Date: Tue, 4 Aug 2026 19:29:34 +0800
Subject: [PATCH] =?UTF-8?q?CRM=5F26-08-05#story#9126,=E8=BD=A6=E8=BE=86?=
 =?UTF-8?q?=E7=AE=A1=E7=90=86=E3=80=81=E6=9C=8D=E5=8A=A1=E5=95=86=E7=AE=A1?=
 =?UTF-8?q?=E7=90=86=E7=B3=BB=E7=BB=9F=E9=9C=80=E6=B1=82?=
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---
 src/components/CameraGuide.vue | 36 +++++++++++++++++++++++++---------
 src/views/index/vehicleAdd.vue | 10 ++++++++--
 2 files changed, 35 insertions(+), 11 deletions(-)

diff --git a/src/components/CameraGuide.vue b/src/components/CameraGuide.vue
index 790940e3..4fb34f30 100644
--- a/src/components/CameraGuide.vue
+++ b/src/components/CameraGuide.vue
@@ -33,7 +33,7 @@
           <div class="guideFrameBorder"></div>
           <div class="guideHole">
             <!-- 相机画面仅在取景框内显示 -->
-            <video ref="video" class="cameraVideo" autoplay playsinline muted></video>
+            <video ref="video" class="cameraVideo" autoplay playsinline webkit-playsinline muted></video>
             <!-- 主页模板：标题 + 印章 -->
             <div v-if="type==='front'" class="licenseTemplate ltFrontPage">
               <div class="ltInner">
@@ -134,6 +134,11 @@ export default {
     visible: {
       type: Boolean,
       default: false
+    },
+    // 父组件前置探测时已拿到的相机流，传入则直接复用（iOS 上避免二次 getUserMedia 黑屏）
+    stream: {
+      type: Object,
+      default: null
     }
   },
   data() {
@@ -144,7 +149,7 @@ export default {
       'medium', 'tall', 'short wide', 'medium', 'tall', 'short', 'medium wide', 'tall']
     return {
       step: 'guide', // guide 拍摄引导 | preview 预览确认
-      stream: null,
+      activeStream: null,
       previewBlob: null,
       previewDataURL: '',
       barcodeBars: heights
@@ -176,7 +181,8 @@ export default {
   methods: {
     async startCamera() {
       try {
-        const stream = await navigator.mediaDevices.getUserMedia({
+        // 优先复用父组件探测时拿到的流，未传入才自行申请
+        const stream = this.stream || await navigator.mediaDevices.getUserMedia({
           video: { facingMode: 'environment' },
           audio: false
         })
@@ -185,12 +191,23 @@ export default {
           stream.getTracks().forEach(t => t.stop())
           return
         }
-        this.stream = stream
+        this.activeStream = stream
         await this.$nextTick()
         const video = this.$refs.video
         if (video) {
+          // iOS 自动播放加固：muted/playsinline 属性与特性同时设置，元数据就绪后再 play
+          video.muted = true
+          video.setAttribute('playsinline', 'true')
+          video.setAttribute('webkit-playsinline', 'true')
           video.srcObject = stream
-          video.play().catch(() => {})
+          const playVideo = () => {
+            video.play().catch(e => console.warn('video play error:', e && (e.name || e.message || e)))
+          }
+          if (video.readyState >= 1) {
+            playVideo()
+          } else {
+            video.onloadedmetadata = playVideo
+          }
         }
       } catch (e) {
         // 权限拒绝或相机不可用 → 通知父组件降级为系统选择器
@@ -199,9 +216,9 @@ export default {
       }
     },
     stopCamera() {
-      if (this.stream) {
-        this.stream.getTracks().forEach(t => t.stop())
-        this.stream = null
+      if (this.activeStream) {
+        this.activeStream.getTracks().forEach(t => t.stop())
+        this.activeStream = null
       }
     },
     takePhoto() {
@@ -373,7 +390,8 @@ export default {
   max-width: 340px;
   padding-top: 69.93%; /* 宽高比约 1.43:1 */
   flex-shrink: 0;
-  filter: drop-shadow(0 4px 16px rgba(20, 30, 50, .12));
+  /* 不用 filter: drop-shadow，iOS 上父级 filter 会导致 video 合成层不绘制（黑屏） */
+  box-shadow: 0 4px 16px rgba(20, 30, 50, .12);
 }
 .corner {
   position: absolute;
diff --git a/src/views/index/vehicleAdd.vue b/src/views/index/vehicleAdd.vue
index a6067108..a6419316 100644
--- a/src/views/index/vehicleAdd.vue
+++ b/src/views/index/vehicleAdd.vue
@@ -457,6 +457,7 @@
   <camera-guide
     :visible="cameraGuideVisible"
     :type="cameraGuideType"
+    :stream="cameraStream"
     @confirm="onCameraConfirm"
     @cancel="onCameraCancel"
     @fallback="onCameraFallback"
@@ -512,6 +513,7 @@ export default {
       imageUrl: require('@/assets/arr_right.png'),
       cameraGuideVisible: false, // 拍摄引导弹层显示
       cameraGuideType: 'front',  // 当前拍摄槽位 front/back/car
+      cameraStream: null,        // 探测成功的相机流，交给 CameraGuide 复用
       vehicleLicenseFrontList: [],
       vehicleLicenseBackList: [],
       vehicleLicenseCarPhotoList: [],
@@ -954,9 +956,10 @@ export default {
         return
       }
       try {
-        // 前置真实探测相机可用性，避免进入拍摄引导页后黑屏；拿到流立即释放
+        // 前置真实探测相机可用性；探测成功的流直接交给 CameraGuide 复用，
+        // 避免 iOS 上 stop 后立即二次 getUserMedia 拿到不渲染的“死流”（黑屏）
         const stream = await navigator.mediaDevices.getUserMedia({ video: { facingMode: 'environment' }, audio: false })
-        stream.getTracks().forEach(t => t.stop())
+        this.cameraStream = stream
         this.cameraGuideVisible = true
       } catch (e) {
         console.warn('probe getUserMedia error:', e && (e.name || e.message || e))
@@ -968,6 +971,7 @@ export default {
     },
     handleCameraFail(e) {   // 相机不可用统一处理：权限类弹确认框，其他异常提示后由用户点击触发相册（保证点击手势有效）
       this.cameraGuideVisible = false
+      this.cameraStream = null
       if (this.isCameraPermissionError(e)) {
         Dialog.confirm({
           title: '提示',
@@ -1002,6 +1006,7 @@ export default {
     },
     onCameraConfirm({ blob, dataURL }) {   // 拍摄确认：构造 {file, content} 走现有压缩→上传→OCR 链路
       this.cameraGuideVisible = false
+      this.cameraStream = null
       const type = this.cameraGuideType
       const file = new File([blob], `vehicle_license_${type}_${Date.now()}.jpg`, { type: 'image/jpeg' })
       const fileItem = { file, content: dataURL }
@@ -1021,6 +1026,7 @@ export default {
     },
     onCameraCancel() {   // 返回放弃
       this.cameraGuideVisible = false
+      this.cameraStream = null
     },
     onCameraFallback(e) {   // CameraGuide 内 getUserMedia 失败（前置探测已通过，概率极低）：按异常类型统一处理
       this.handleCameraFail(e)