重启APP

kaina404 · kaina404 · commit d705f911f3d7 · 2019-03-18T17:17:48.000+08:00
diff --git a/lib/main.dart b/lib/main.dart
@@ -14,20 +14,55 @@ void main() {
   }
 }
 
-DragController controller = DragController();
-
 class MyApp extends StatelessWidget {
   // This widget is the root of your application.
 
   @override
   Widget build(BuildContext context) {
-    return MaterialApp(
-      theme: ThemeData(backgroundColor: Colors.white),
-      home: Scaffold(
-        resizeToAvoidBottomPadding: false,
-        body: SplashWidget(),
+    return RestartWidget(
+      child: MaterialApp(
+        theme: ThemeData(backgroundColor: Colors.white),
+        home: Scaffold(
+          resizeToAvoidBottomPadding: false,
+          body: SplashWidget(),
+        ),
       ),
     );
   }
 }
 
+///这个组件用来重新加载整个child Widget的。当我们需要重启APP的时候，可以使用这个方案
+class RestartWidget extends StatefulWidget {
+  final Widget child;
+
+  RestartWidget({Key key, @required this.child})
+      : assert(child != null),
+        super(key: key);
+
+  static restartApp(BuildContext context) {
+    final _RestartWidgetState state =
+        context.ancestorStateOfType(const TypeMatcher<_RestartWidgetState>());
+    state.restartApp();
+  }
+
+  @override
+  _RestartWidgetState createState() => _RestartWidgetState();
+}
+
+class _RestartWidgetState extends State<RestartWidget> {
+  Key key = UniqueKey();
+
+  void restartApp() {
+    setState(() {
+      key = UniqueKey();
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      key: key,
+      child: widget.child,
+    );
+  }
+}
diff --git a/lib/pages/person/person_center_page.dart b/lib/pages/person/person_center_page.dart
@@ -5,7 +5,7 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter_cache_manager/flutter_cache_manager.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:douban_app/constant/cache_key.dart';
-
+import 'package:douban_app/main.dart';
 typedef VoidCallback = void Function();
 
 ///个人中心
@@ -194,6 +194,7 @@ class _UseNetDataWidgetState extends State<UseNetDataWidget> {
                       Navigator.of(context).pop();
                     },),
                     FlatButton(child: Text('现在重启'),onPressed: (){
+                      RestartWidget.restartApp(context);
                       Navigator.of(context).pop();
                     },)
                   ],);
