carga inicial

lib/index/index.dart

@@ -1,55 +1,60 @@
-import 'package:appcardsstarter/home/home.dart';
-import 'package:appcardsstarter/notificacoes/notificacoes.dart';
-import 'package:appcardsstarter/videos/youtube_videos.dart';
+//import 'package:decpisos/home/home.dart';
+import 'package:decpisos/index/index_controller.dart';
+//import 'package:decpisos/notificacoes/notificacoes.dart';
+//import 'package:decpisos/videos/youtube_videos.dart';
 import 'package:convex_bottom_bar/convex_bottom_bar.dart';
 import 'package:flutter/material.dart';
+import 'package:get/get.dart';
 
 class IndexScreen extends StatefulWidget {
   @override
   _IndexScreenState createState() => _IndexScreenState();
 }
 
-class _IndexScreenState extends State<IndexScreen> with SingleTickerProviderStateMixin{
-  TabController _tabController;
+class _IndexScreenState extends State<IndexScreen> {
+  // TabController _tabController;
 
-  @override
-  void initState() {
-    super.initState();
-    _tabController = TabController(length: 3, vsync: this);
-    _tabController.index = 1;
-  }
+  // @override
+  // void initState() {
+  //   super.initState();
+  //   _tabController = TabController(length: 3, vsync: this);
+  //   _tabController.index = 1;
+  // }
 
-  @override
-  void dispose() {
-    _tabController.dispose();
-    super.dispose();
-  }
+  // @override
+  // void dispose() {
+  //   _tabController.dispose();
+  //   super.dispose();
+  // }
+  final IndexController c = Get.put(IndexController());
 
   @override
   Widget build(BuildContext context) {
     return Scaffold(
-      body: TabBarView(
-        controller: _tabController,
-        physics: NeverScrollableScrollPhysics(),
-        children: [
-            YouTubeVideosScreen(),
-            HomeScreen(),
-            NotificacoesScreen()
-          ]
-        ),
-      bottomNavigationBar: ConvexAppBar(
-        items: [
-          TabItem(icon: Icons.video_collection, title: 'Vídeos'),
-          TabItem(icon: Icons.home, title: 'Home'),
-          TabItem(icon: Icons.notifications, title: 'Notificações'),
-        ],
-        style: TabStyle.flip,
-        backgroundColor: Theme.of(context).primaryColor,
-        controller: _tabController,
-        // onTap: (int i){
-        //   print(i);
-        // },
-      ),      
+      body: Obx(() => TabBarView(
+            controller: c.tabController,
+            physics: NeverScrollableScrollPhysics(),
+            // children: [
+            //   YouTubeVideosScreen(),
+            //   HomeScreen(),
+            //   NotificacoesScreen()
+            // ]
+            children: c.childrenTabs.map((element) => element).toList(),
+      )),
+      bottomNavigationBar: Obx(() => ConvexAppBar(
+            // items: [
+            //   TabItem(icon: Icons.video_collection, title: 'Vídeos'),
+            //   TabItem(icon: Icons.home, title: 'Home'),
+            //   TabItem(icon: Icons.notifications, title: 'Notificações'),
+            // ],
+            items: c.tabs.map((element) => element).toList(),
+            style: TabStyle.flip,
+            backgroundColor: Theme.of(context).primaryColor,
+            controller: c.tabController,
+            // onTap: (int i){
+            //   print(i);
+            // },
+          )),
     );
   }
-}
+}

lib/index/index_controller.dart

@@ -0,0 +1,46 @@
+import 'package:decpisos/home/home.dart';
+import 'package:decpisos/notificacoes/notificacoes.dart';
+import 'package:decpisos/videos/youtube_videos.dart';
+import 'package:convex_bottom_bar/convex_bottom_bar.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+
+class IndexController extends GetxController with SingleGetTickerProviderMixin{
+  TabController tabController;
+  var tabs = List<TabItem>().obs;
+  var childrenTabs = List<Widget>().obs;
+  @override
+  void onInit() {
+    super.onInit();
+    this.initTabs();
+    this.tabController.index = 1;
+  }
+
+  @override
+  void onClose() {
+    this.tabController.dispose();
+    super.onClose();
+  }
+
+  void initTabs(){
+    this.childrenTabs.add(YouTubeVideosScreen());
+    this.childrenTabs.add(HomeScreen());
+    this.childrenTabs.add(NotificacoesScreen());
+    this.tabs.add(TabItem(icon: Icons.video_collection, title: 'Vídeos'));
+    this.tabs.add(TabItem(icon: Icons.home, title: 'Home'));
+    this.tabs.add(TabItem(icon: Icons.notifications, title: 'Notificações'));
+    this.tabController = TabController(vsync: this, length: this.tabs.length);    
+  }
+
+  void tabsWithoutVideos(){
+    this.childrenTabs.clear();
+    this.tabs.clear();    
+    this.childrenTabs.add(HomeScreen());
+    this.childrenTabs.add(NotificacoesScreen());
+    this.tabs.add(TabItem(icon: Icons.home, title: 'Home'));
+    this.tabs.add(TabItem(icon: Icons.notifications, title: 'Notificações'));
+    this.tabController = new TabController(vsync: this, length: this.tabs.length);  
+    Get.rawSnackbar(message: 'Vídeos temporariamente indisponível');
+  }
+
+}