0507 修复返回按钮不关闭首页的抖券播放

lib/pages/home_page/home_page.dart

@@ -159,6 +159,7 @@ class _HomePageState extends State<HomePage>
 
   @override
   void dispose() {
+    print(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>Homepagedispose>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
     WidgetsBinding.instance.removeObserver(this);
     streamSubscription.cancel();
     reloadSubscription?.cancel();
@@ -202,13 +203,23 @@ class _HomePageState extends State<HomePage>
       _currentIndex = 0;
     }
 
-    return Scaffold(
-      body: IndexedStack(
-        index: _currentIndex,
-        children: contentWidgets,
+    return WillPopScope(
+      onWillPop: () async{
+        print(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>HomepageBack>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>");
+        EventUtil.instance.fire("HomepageSignOut");
+        // 退出app
+        // await SystemChannels.platform.invokeMethod('SystemNavigator.pop');
+        return true;
+
+      },
+      child: Scaffold(
+        body: IndexedStack(
+          index: _currentIndex,
+          children: contentWidgets,
+        ),
+        //底部导航栏
+        bottomNavigationBar: createBottomNavigationBar(tabs),
       ),
-      //底部导航栏
-      bottomNavigationBar: createBottomNavigationBar(tabs),
     );
   }