fix：wifi页面wifi列表新增刷新功能

src/pages/ota-wifi.vue

@@ -26,6 +26,8 @@ const connectError = ref("");
 const keyboardHeight = ref(0);
 // 控制密码输入框是否显示明文
 const showPassword = ref(false);
+// 刷新防抖标志：扫描进行中为 true，禁止重复点击；扫描结束（成功/失败）后重置为 false。
+const isRefreshing = ref(false);
 
 const progress = ref(0);
 let progressTimer = null;
@@ -56,12 +58,13 @@ const showWifiPermissionDeniedModal = () => {
   });
 };
 
-// 将 iOS 当前手机连接的 WiFi 写入候选列表，供用户继续填写设备连接密码。
+// 将 iOS 当前手机连接的 WiFi 写入候选列表，供用户继续填写设备连接密码；扫描结束后重置刷新防抖标志。
 const applyIOSConnectedWifi = (wifi) => {
   const ssid = wifi?.SSID;
   if (!ssid) {
     wifiList.value = [];
     currentState.value = STATES.LIST;
+    isRefreshing.value = false;
     return;
   }
 
@@ -74,6 +77,7 @@ const applyIOSConnectedWifi = (wifi) => {
     },
   ];
   currentState.value = STATES.LIST;
+  isRefreshing.value = false;
 };
 
 // 获取 iOS 当前手机连接的 WiFi，并把它作为可选网络展示。
@@ -91,6 +95,7 @@ const syncIOSConnectedWifi = () => {
       });
       wifiList.value = [];
       currentState.value = STATES.LIST;
+      isRefreshing.value = false;
     },
   });
 };
@@ -110,12 +115,16 @@ const startIOSScanning = () => {
       });
       if (err.errCode === 12005) showWifiBanner.value = true;
       currentState.value = STATES.LIST;
+      isRefreshing.value = false;
     },
   });
 };
 
-// 启动小程序 WiFi 能力并按平台获取可用网络。
+// 启动小程序 WiFi 能力并按平台获取可用网络；也作为刷新按钮的点击处理器，重新获取最新 WiFi 列表。
+// 扫描进行中时防抖：若上次扫描尚未完成则直接 return，避免重复触发导致弹窗异常。
 const startScanning = () => {
+  if (isRefreshing.value) return;
+  isRefreshing.value = true;
   currentState.value = STATES.SCANNING;
   wifiList.value = [];
   showWifiBanner.value = false;
@@ -141,6 +150,7 @@ const startScanning = () => {
           });
           if (isWifiPermissionDenied(err)) showWifiPermissionDeniedModal();
           if (err.errCode === 12005) showWifiBanner.value = true;
+          isRefreshing.value = false;
         },
       });
     },
@@ -152,6 +162,7 @@ const startScanning = () => {
       });
       if (isWifiPermissionDenied(err)) showWifiPermissionDeniedModal();
       if (err.errCode === 12005) showWifiBanner.value = true;
+      isRefreshing.value = false;
     },
   });
 
@@ -164,6 +175,7 @@ const startScanning = () => {
     }
     wifiList.value = realWifiList;
     currentState.value = STATES.LIST;
+    isRefreshing.value = false;
   });
 };
 
@@ -372,10 +384,10 @@ onUnmounted(() => {
       <view class="section-label-row">
         <text class="section-label">网络</text>
         <image
-          v-if="currentState === 'SCANNING'"
           src="../static/sicon/refresh.png"
           mode="aspectFit"
-          style="width: 34rpx; height: 34rpx; margin-left: 8rpx; opacity: 0.7;"
+          :style="{ width: '34rpx', height: '34rpx', marginLeft: '8rpx', opacity: isRefreshing ? 0.3 : 0.7 }"
+          @click="startScanning"
         />
       </view>