feat:切换tab避免重绘g

limin05030 · Jan 10, 2019 · 72aa830 · 72aa830
1 parent 8dbc11c
commit 72aa830
Show file tree

Hide file tree

Showing 3 changed files with 21 additions and 4 deletions.
diff --git a/lib/views/FirstPage.dart b/lib/views/FirstPage.dart
@@ -20,7 +20,12 @@ class FirstPage extends StatefulWidget {
   FirstPageState createState() => new FirstPageState();
 }
 
-class FirstPageState extends State<FirstPage> {
+class FirstPageState extends State<FirstPage> with AutomaticKeepAliveClientMixin{
+
+
+  @override
+    // TODO: implement wantKeepAlive
+    bool get wantKeepAlive => true;
 
   @override
   void initState() {
@@ -68,6 +73,7 @@ class FirstPageState extends State<FirstPage> {
 
   @override
   Widget build(BuildContext context) {
+    super.build(context);
     return new Column(
         children: <Widget>[
           new Container(

diff --git a/lib/views/collection_page.dart b/lib/views/collection_page.dart
@@ -15,14 +15,19 @@ class CollectionPage extends StatefulWidget {
   _CollectionPageState createState() => _CollectionPageState();
 }
 
-class _CollectionPageState extends State<CollectionPage> {
+class _CollectionPageState extends State<CollectionPage> with AutomaticKeepAliveClientMixin{
   _CollectionPageState() {
     final eventBus = new EventBus();
     ApplicationEvent.event = eventBus;
   }
   CollectionControlModel _collectionControl = new CollectionControlModel();
   List<Collection> _collectionList;
   ScrollController _scrollController = new ScrollController();
+
+  @override
+    // TODO: implement wantKeepAlive
+    bool get wantKeepAlive => true;
+
   @override
   void initState() {
     super.initState();
@@ -102,7 +107,7 @@ class _CollectionPageState extends State<CollectionPage> {
 
   @override
   Widget build(BuildContext context) {
-    print(_collectionList);
+    super.build(context);
     if (_collectionList.length == 0) {
       return ListView(
         children: <Widget>[

diff --git a/lib/views/widgetPage.dart b/lib/views/widgetPage.dart
@@ -13,7 +13,7 @@ class WidgetPage extends StatefulWidget {
   SecondPageState createState() => new SecondPageState(catModel);
 }
 
-class SecondPageState extends State<WidgetPage> {
+class SecondPageState extends State<WidgetPage> with AutomaticKeepAliveClientMixin{
   CatControlModel catModel;
   SecondPageState(this.catModel) : super();
 
@@ -23,6 +23,11 @@ class SecondPageState extends State<WidgetPage> {
 
   List<Cat> categories = [];
 
+  @override
+    // TODO: implement wantKeepAlive
+    bool get wantKeepAlive => true;
+
+  @override
   void initState() { 
     super.initState();
     renderCats();
@@ -52,6 +57,7 @@ class SecondPageState extends State<WidgetPage> {
 
   @override
   Widget build(BuildContext context) {
+    super.build(context);
     if (categories.length == 0) {
       return ListView(
         children: <Widget>[new Container()],