From 5ba83212afc7ea716fe31c4e0a5c3b9bbcc0dd41 Mon Sep 17 00:00:00 2001
From: jyuesong <425698907@qq.com>
Date: Tue, 18 Jan 2022 18:55:19 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0=E8=8E=B7=E5=8F=96provider?=
 =?UTF-8?q?=E6=96=B9=E5=BC=8F?=
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---
 lib/main.dart            | 15 ++++++++++-----
 lib/utils/extension.dart | 10 ++++++++--
 2 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/lib/main.dart b/lib/main.dart
index 47771c6..4f0f32a 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -32,7 +32,7 @@ void main() async {
       overrides: [
         themeProvider,
       ],
-      child: const MyApp(),
+      child: const QlApp(),
     ),
   );
   if (Platform.isAndroid) {
@@ -41,11 +41,16 @@ void main() async {
   }
 }
 
-class MyApp extends ConsumerWidget {
-  const MyApp({Key? key}) : super(key: key);
+class QlApp extends ConsumerStatefulWidget {
+  const QlApp({Key? key}) : super(key: key);
 
   @override
-  Widget build(BuildContext context, WidgetRef ref) {
+  ConsumerState<QlApp> createState() => QlAppState();
+}
+
+class QlAppState extends ConsumerState<QlApp> {
+  @override
+  Widget build(BuildContext context) {
     return GestureDetector(
       behavior: HitTestBehavior.opaque,
       onTap: () {
@@ -64,7 +69,7 @@ class MyApp extends ConsumerWidget {
             if (!kReleaseMode) {
               showDebugBtn(context, btnColor: Colors.blue);
             }
-            return getIt<UserInfoViewModel>().isLogined() ? const HomePage() : LoginPage();
+            return getIt<UserInfoViewModel>().isLogined() ? const HomePage() : const LoginPage();
           },
         ),
         // home: LoginPage(),
diff --git a/lib/utils/extension.dart b/lib/utils/extension.dart
index 8dab197..a447202 100644
--- a/lib/utils/extension.dart
+++ b/lib/utils/extension.dart
@@ -1,14 +1,20 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:fluttertoast/fluttertoast.dart';
+import 'package:qinglong_app/main.dart';
 
+//不推荐使用, 性能为o(n)
 extension ContextExt on BuildContext {
+  static QlAppState? _state;
+
   T read<T>(ProviderBase<T> provider) {
-    return (this as WidgetRef).read<T>(provider);
+    _state ??= findRootAncestorStateOfType<QlAppState>();
+    return _state!.ref.read(provider);
   }
 
   T watch<T>(ProviderBase<T> provider) {
-    return (this as WidgetRef).watch<T>(provider);
+    _state ??= findRootAncestorStateOfType<QlAppState>();
+    return _state!.ref.watch(provider);
   }
 }