[AI Generated]: fix(*): 修复蓝牙连接全链路问题，包含 bus 重复订阅、activeProtocol 空指针、stop 竞速、重连计数器跨页面共享、OTA 超时保护、硬超时改事件驱动、保活定时器泄漏及回调错误处理

pages/configureDevice/configureDevice.js

@@ -16,22 +16,46 @@ Page({
 		// 一次性数据初始化，订阅逻辑在 onShow 中注册
 	},
 
+	// 存储页面级 bus 回调引用，用于精准 unsubscribe
+	_pageHandlers: {
+		devicesModel: null,
+		deviceConnect: null,
+		devicesList: null,
+	},
+
+	// 注销页面级 bus 订阅
+	_unsubscribePageBus() {
+		const bus = ppScale.plugin.bus;
+		const h = this._pageHandlers;
+		if (h.devicesModel) { bus.unsubscribe('devicesModel', h.devicesModel); h.devicesModel = null; }
+		if (h.deviceConnect) { bus.unsubscribe('deviceConnect', h.deviceConnect); h.deviceConnect = null; }
+		if (h.devicesList) { bus.unsubscribe('devicesList', h.devicesList); h.devicesList = null; }
+	},
+
+	// 记录 stop() 调用时间，用于 onShow 动态计算安全延迟
+	_stopTime: 0,
+
 	onShow() {
 		console.log("configureDevice onShow");
-		// 延迟 300ms 确保 stop() 完全释放后再重新注册（参照官方 demo）
+		// 动态计算距上次 stop() 已过去的时间，确保间隔至少 500ms 再重新注册
+		const elapsed = Date.now() - (this._stopTime || 0);
+		const delay = Math.max(0, 500 - elapsed);
 		setTimeout(() => {
-			// 重新注册 app 级别的全局 bus 订阅
+			// 重新注册 app 级别的全局 bus 订阅（内部已做 unsubscribe 防重）
 			app.registerBusListeners();
 
-			// 页面级 bus 订阅
-			ppScale.plugin.bus.subscribe("devicesModel", (res) => {
+			// 页面级 bus 订阅（先清理旧的，防止重复叠加）
+			this._unsubscribePageBus();
+
+			this._pageHandlers.devicesModel = (res) => {
 				console.log("===》devicesModel", res);
 				ppScale.device.mac = res.deviceMac;
 				this._macReady = true;
 				this._tryProgress();
-			});
+			};
+			ppScale.plugin.bus.subscribe("devicesModel", this._pageHandlers.devicesModel);
 
-			ppScale.plugin.bus.subscribe("deviceConnect", (res) => {
+			this._pageHandlers.deviceConnect = (res) => {
 				console.log('===》deviceConnect', res);
 
 				ppScale.plugin.ScaleAction.startDataProgress(true);
@@ -78,18 +102,20 @@ Page({
 						this._tryProgress();
 					})
 				});
-			});
+			};
+			ppScale.plugin.bus.subscribe("deviceConnect", this._pageHandlers.deviceConnect);
 
 			// 如果之前已选择过设备，自动扫描并重连
 			if (this.data.device) {
 				wx.showLoading({ title: "正在重新连接...", mask: true });
-				ppScale.plugin.bus.subscribe("devicesList", (res) => {
+				this._pageHandlers.devicesList = (res) => {
 					let fIndex = res.findIndex(item => item.deviceId === this.data.device.deviceId);
 					if (fIndex >= 0) {
 						ppScale.plugin.Blue.stopBluetoothDevicesDiscovery();
 						ppScale.plugin.Blue.createBLEConnection(res[fIndex]);
 					}
-				});
+				};
+				ppScale.plugin.bus.subscribe("devicesList", this._pageHandlers.devicesList);
 			}
 
 			// 通过完整链路重新初始化蓝牙（权限检查 → 打开适配器 → start）
@@ -153,6 +179,7 @@ Page({
 	},
 
 	setConfigSuccessful() {
+		this._stopKeepAlive();
 		ppScale.plugin.Blue.stop();
 		wx.switchTab({
 			url: "/pages/home/home"
@@ -160,9 +187,22 @@ Page({
 	},
 
 	setProgress() {
-		this.setData({
-			["progress.index"]: this.data.progress.index + 1
-		})
+		const newIndex = this.data.progress.index + 1;
+		this.setData({ "progress.index": newIndex });
+		// 进入步骤2（配网）时，等待组件渲染完成后由父页面显式触发 WiFi 列表获取
+		if (newIndex === 2) {
+			setTimeout(() => {
+				const comp = this.selectComponent('#configureDevice3');
+				if (comp) comp.initWifi();
+			}, 100);
+		}
+		// 进入步骤3（OTA升级）时，等待组件渲染完成后由父页面显式触发升级
+		if (newIndex === 3) {
+			setTimeout(() => {
+				const comp = this.selectComponent('#configureDevice4');
+				if (comp) comp.startOtaUpgrade();
+			}, 100);
+		}
 	},
 
 	// 连接完成 + mac 获取完成，双条件满足后才进入下一步
@@ -255,6 +295,8 @@ Page({
 	onHide() {
 		console.log("configureDevice onHide");
 		this._stopKeepAlive();
+		this._unsubscribePageBus();
+		app.unregisterBusListeners();
 		// 配网步骤：立即清空 WiFi 列表（stop 后数据已失效）
 		if (this.data.progress.index === 2) {
 			const comp = this.selectComponent('#configureDevice3');
@@ -271,16 +313,20 @@ Page({
 		app.setGlobalData('ppScale.device.connectState', null);
 		this._connectReady = false;
 		this._macReady = false;
+		this._stopTime = Date.now();
 		ppScale.plugin.Blue.stop();
 	},
 
 	onUnload() {
 		console.log("configureDevice onUnload");
 		this._stopKeepAlive();
+		this._unsubscribePageBus();
+		app.unregisterBusListeners();
 		app.resetReconnectCount();
 		app.setGlobalData('ppScale.device.connectState', null);
 		this._connectReady = false;
 		this._macReady = false;
+		this._stopTime = Date.now();
 		ppScale.plugin.Blue.stop();
 	}
 })

pages/configureDevice/configureDevice.wxml

@@ -21,7 +21,7 @@
             <configureDevice3 id="configureDevice3" bind:deviceEvent="setDeviceConfig"></configureDevice3>
         </block>
         <block wx:if="{{progress.index === 3}}">
-            <configureDevice4 bind:deviceEvent="setConfigSuccessful"></configureDevice4>
+            <configureDevice4 id="configureDevice4" bind:deviceEvent="setConfigSuccessful"></configureDevice4>
         </block>
     </view>
 </view>