更新websocket重连

lib/pages/device/instant_body_page.dart

@@ -30,7 +30,8 @@ class InstantBodyPage extends StatefulWidget {
   State<InstantBodyPage> createState() => _InstantBodyPageState();
 }
 
-class _InstantBodyPageState extends State<InstantBodyPage> {
+class _InstantBodyPageState extends State<InstantBodyPage>
+    with WidgetsBindingObserver {
   GlobalController globalController = Get.find();
   UserInfoController userInfoController = Get.find();
   BlueteethBindController blueteethBindController = Get.find();
@@ -57,27 +58,53 @@ class _InstantBodyPageState extends State<InstantBodyPage> {
 
   @override
   void initState() {
+    WidgetsBinding.instance.addObserver(this); // 添加生命周期观察者
+    // edm.EasyDartModule.websocket.sendData(jsonEncode(WebSocketMessage(
+    //     path: "/vsbs/web/rt/marttress",
+    //     type: 1,
+    //     data: {"mac": widget.personInfo['mac']})));
+    // _startOnlineTimer(); // 初始化时启动定时器
+    _initWebSocket();
+    super.initState();
+  }
+
+  void _initWebSocket() {
+    // 发送WebSocket请求
     edm.EasyDartModule.websocket.sendData(jsonEncode(WebSocketMessage(
         path: "/vsbs/web/rt/marttress",
         type: 1,
         data: {"mac": widget.personInfo['mac']})));
-    _startOnlineTimer(); // 初始化时启动定时器
-    super.initState();
+    _startOnlineTimer();
   }
+  //y
 
   @override
   void dispose() {
-    _onlineTimer?.cancel(); // 取消定时器，防止内存泄漏
-    edm.EasyDartModule.websocket.sendData(
-        jsonEncode(WebSocketMessage(path: "/vsbs/web/rt/marttress", type: 2)));
+    WidgetsBinding.instance.removeObserver(this); // 移除生命周期观察者
+    _onlineTimer?.cancel();
+    _closeWebSocket();
     super.dispose();
   }
 
+  // 监听应用生命周期变化
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+    if (state == AppLifecycleState.resumed) {
+      // 应用回到前台时重新连接WebSocket
+       edm.EasyDartModule.logger.info("app切回页面，重连websocket");
+      _initWebSocket();
+    } else if (state == AppLifecycleState.paused) {
+      // 应用进入后台时关闭WebSocket      
+      _closeWebSocket();
+    }
+  }
+
   void _startOnlineTimer() {
     _onlineTimer?.cancel(); // 取消之前的定时器
     _onlineTimer = Timer.periodic(Duration(seconds: 30), (timer) {
       if (mounted) {
         setState(() {
+          edm.EasyDartModule.logger.info("30 秒内没有接收到数据，设置为离线");
           onlineState = "离线".tr; // 30 秒内没有接收到数据，设置为离线
           inBed = "未知数据".tr;
           bodyMotion = -1;
@@ -977,6 +1004,13 @@ class _InstantBodyPageState extends State<InstantBodyPage> {
       ),
     );
   }
+
+  void _closeWebSocket() {
+    // 取消WebSocket订阅
+    edm.EasyDartModule.websocket.sendData(
+        jsonEncode(WebSocketMessage(path: "/vsbs/web/rt/marttress", type: 2)));
+    _onlineTimer?.cancel();
+  }
 }
 
 class SpeedControlledGif extends StatefulWidget {