feats

lib/main.dart

@@ -2,12 +2,14 @@ import 'dart:async';
 
 import 'package:farmer_client/models/Store.dart';
 import 'package:farmer_client/pages/home.dart';
+import 'package:farmer_client/pages/splash.dart';
 import 'package:farmer_client/pages/login/login.dart';
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:get_storage/get_storage.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 
+import 'routes/index.dart';
 import 'widgets/OrderListCard.dart';
 
 
@@ -32,11 +34,10 @@ class MyApp extends StatelessWidget {
       splitScreenMode: true,
       builder: (_) {
         return GetMaterialApp(
-          initialRoute: '/home',
+          initialRoute: '/splash',
           defaultTransition: Transition.native,
-          getPages: [
-            GetPage(name: '/home', page: () => box.hasData('token') ? Home() : MyRouteLogin()),
-          ],
+          routingCallback: routingCallback,
+          getPages: pages,
         );
       },
     );

lib/pages/home.dart

@@ -1,12 +1,13 @@
 
 import 'package:farmer_client/models/User.dart';
+import 'package:flutter/material.dart';
 import 'package:flutter/widgets.dart';
 import 'package:get/get.dart';
 
 class Home extends GetView<User> {
   @override
   Widget build(BuildContext context) {
-    return Text("首页示例");
+    return Scaffold(body: Text("首页"),);
   }
 
 }

lib/pages/index.dart

@@ -0,0 +1,4 @@
+
+export 'home.dart';
+export 'splash.dart';
+export 'login/login.dart';

lib/pages/launch.dart

@@ -1,22 +0,0 @@
-
-
-import 'package:flutter/widgets.dart';
-
-class Launch extends StatefulWidget {
-  @override
-  State<StatefulWidget> createState() => LaunchState();
-}
-
-class LaunchState extends State<Launch> {
-
-  // 默认 3s
-  int _countdown = 3;
-
-  @override
-  Widget build(BuildContext context) {
-    // TODO: implement build
-    throw UnimplementedError();
-  }
-
-}
-

lib/pages/splash.dart

@@ -0,0 +1,53 @@
+
+
+import 'dart:async';
+
+import 'package:farmer_client/utils/timer.dart';
+import 'package:flutter/widgets.dart';
+import 'package:get/get.dart';
+
+import 'home.dart';
+
+class SplashScreen extends StatefulWidget {
+  @override
+  State<StatefulWidget> createState() => SplashScreenState();
+}
+
+class SplashScreenState extends State<SplashScreen> {
+
+  // 默认 3s
+  int _countdown = 3;
+  Timer? _timer;
+
+  @override
+  void initState() {
+    super.initState();
+
+    _timer = setInterval((_) {
+      if (_countdown <= 1) {
+        _timer?.cancel();
+        _timer = null;
+        Get.off(Home(), routeName: '/');
+      }
+
+      setState(() {
+        debugPrint('------------------');
+        debugPrint(_countdown.toString());
+        _countdown -= 1;
+      });
+    }, 1000);
+  }
+
+  @override
+  void dispose() {
+    super.dispose();
+    _timer?.cancel();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Text("引导页");
+  }
+
+}
+

lib/routes/index.dart

@@ -0,0 +1,3 @@
+
+export 'pages.dart';
+export 'middleWares.dart';

lib/routes/middleWares.dart

@@ -0,0 +1,16 @@
+
+import 'package:flutter/scheduler.dart';
+import 'package:get/get.dart';
+import 'package:get_storage/get_storage.dart';
+
+void routingCallback (routing) {
+  GetStorage box = GetStorage();
+  bool isLogin = box.hasData('token');
+  bool isSplashScreen = routing?.current == '/splash';
+  bool isLoginPage = routing?.current == '/login';
+  if (!isLogin && !isSplashScreen && !isLoginPage) {
+    // addPostFrameCallback 作用是等当前帧绘制完成之后再加载
+    // https://github.com/jonataslaw/getx/issues/262
+    SchedulerBinding.instance?.addPostFrameCallback((_) => Get.toNamed('/login'));
+  }
+}

lib/routes/pages.dart

@@ -0,0 +1,9 @@
+
+import 'package:get/get.dart';
+import '../pages/index.dart';
+
+List<GetPage> pages = [
+  GetPage(name: '/', page: () =>  Home()),
+  GetPage(name: '/splash', page: () => SplashScreen()),
+  GetPage(name: '/login', page: () =>  MyRouteLogin()),
+];

lib/utils/timer.dart

@@ -6,11 +6,7 @@ Timer setInterval(void Function (Timer) f, int milliseconds) {
   return Timer.periodic(duration, f);
 }
 
-//
-// Timer setTimeout(void Function () f, int milliseconds) {
-//   if
-//
-//
-//   var duration = Duration(milliseconds: milliseconds);
-//   return Timer(duration, f);
-// }
+Timer setTimeout(void Function () f, int milliseconds) {
+  var duration = Duration(milliseconds: milliseconds);
+  return Timer(duration, f);
+}