diff --git a/lib/components/disclaimer_msg.dart b/lib/components/disclaimer_msg.dart
index 538f0383..aee0a05f 100644
--- a/lib/components/disclaimer_msg.dart
+++ b/lib/components/disclaimer_msg.dart
@@ -31,7 +31,7 @@ class DisclaimerMsgState extends State<DisclaimerMsg> {
   var _readed = false;
 
   //SharedPreferences 存储结果
-  Future<bool> refs(bool value) async {
+  void refs(bool value) async {
     final SharedPreferences prefs = await _prefs;
     final bool unKnow = value;
     setState(() {
diff --git a/lib/components/fourth_page_feature/pager_indicator.dart b/lib/components/fourth_page_feature/pager_indicator.dart
index 35c47bf6..4bb7db55 100644
--- a/lib/components/fourth_page_feature/pager_indicator.dart
+++ b/lib/components/fourth_page_feature/pager_indicator.dart
@@ -46,14 +46,14 @@ class PagerIndicator extends StatelessWidget {
       );
     }
 
-    final BUBBLE_WIDHT = 55.0 ;
-    final baseTranslation = ((viewModel.pages.length * BUBBLE_WIDHT) / 2) - (BUBBLE_WIDHT / 2) ;
-    var translation = baseTranslation - (viewModel.activeIndex * BUBBLE_WIDHT);
+    final bubbleWidth = 55.0 ;
+    final baseTranslation = ((viewModel.pages.length * bubbleWidth) / 2) - (bubbleWidth / 2) ;
+    var translation = baseTranslation - (viewModel.activeIndex * bubbleWidth);
 
     if (viewModel.slideDirection == SlideDirection.leftToRight){
-        translation += BUBBLE_WIDHT * viewModel.slidePercent;
+        translation = bubbleWidth * viewModel.slidePercent + translation;
     }else if (viewModel.slideDirection == SlideDirection.rightToLeft){
-        translation -= BUBBLE_WIDHT * viewModel.slidePercent;
+        translation = bubbleWidth * viewModel.slidePercent - translation;
     }
 
     return new Column(
diff --git a/lib/views/first_page.dart b/lib/views/first_page.dart
index de3ec5a3..38b65e22 100644
--- a/lib/views/first_page.dart
+++ b/lib/views/first_page.dart
@@ -38,7 +38,6 @@ class FirstPageState extends State<FirstPage> with AutomaticKeepAliveClientMixin
        * 判断是否需要弹出免责声明,已经勾选过不在显示,就不会主动弹
        */
       _unKnow.then((bool value) {
-         print("==========FirstPageState========_unKnow========${value}");
          new Future.delayed(const Duration(seconds: 1),(){
            if (!value) {
             key.currentState.showAlertDialog(context);
diff --git a/lib/views/welcome_page/fourth_page.dart b/lib/views/welcome_page/fourth_page.dart
index b2ca6f41..6c80423e 100644
--- a/lib/views/welcome_page/fourth_page.dart
+++ b/lib/views/welcome_page/fourth_page.dart
@@ -73,6 +73,12 @@ class FourthPageState extends State<FourthPage> with TickerProviderStateMixin {
     });
   }
 
+  @override
+  void dispose() {
+    super.dispose();
+    slideUpdateStream.close();
+  }
+
   @override
   Widget build(BuildContext context) {
     return new Stack(
diff --git a/lib/widgets/themes/Cupertino/CupertinoApp/demo.dart b/lib/widgets/themes/Cupertino/CupertinoApp/demo.dart
index ae675c6a..6b3ec058 100644
--- a/lib/widgets/themes/Cupertino/CupertinoApp/demo.dart
+++ b/lib/widgets/themes/Cupertino/CupertinoApp/demo.dart
@@ -26,7 +26,7 @@ class CupertinoAppFullDefault extends StatefulWidget {
 * */
 class _CupertinoAppFullDefault extends State {
 
-  RouterHandler(setting){
+  routerHandler(setting){
     //setting.isInitialRoute; bool类型 是否初始路由
     //setting.name; 要跳转的路由名key
     return PageRouteBuilder(
@@ -94,7 +94,7 @@ class _CupertinoAppFullDefault extends State {
             MyObserver(),
           ],
           onGenerateRoute: (setting){ // 当通过Navigation.of(context).pushNamed跳转路由时，在routes查找不到时，会调用该方法
-            RouterHandler(setting);
+            routerHandler(setting);
           },
           onGenerateTitle: (context){ // 跟上面的tiitle一样，但含有一个context参数用于做本地化
             return 'Flutter应用';
diff --git a/lib/widgets/themes/Cupertino/CupertinoIcons/demo.dart b/lib/widgets/themes/Cupertino/CupertinoIcons/demo.dart
index 73fa5e90..12751a1a 100644
--- a/lib/widgets/themes/Cupertino/CupertinoIcons/demo.dart
+++ b/lib/widgets/themes/Cupertino/CupertinoIcons/demo.dart
@@ -40,6 +40,7 @@ class _CupertinoIconsFullDefault extends State {
           flex:1,
           child: CupertinoButton(
             padding: EdgeInsets.only(left: 0),
+            onPressed: () { },
             child:FlatButton.icon(
                 label: Text('默认按钮', semanticsLabel: 'Add'),
                 icon:Icon(itA,
@@ -51,6 +52,7 @@ class _CupertinoIconsFullDefault extends State {
             flex:1,
             child: CupertinoButton(
                 padding: EdgeInsets.zero,
+                onPressed: () { },
                 child:FlatButton.icon(
                   label: Text('默认按钮', semanticsLabel: 'Add'),
                   icon:Icon(itB,
diff --git a/lib/widgets/themes/Cupertino/CupertinoPopupSurface/demo.dart b/lib/widgets/themes/Cupertino/CupertinoPopupSurface/demo.dart
index 92651e4d..72801706 100644
--- a/lib/widgets/themes/Cupertino/CupertinoPopupSurface/demo.dart
+++ b/lib/widgets/themes/Cupertino/CupertinoPopupSurface/demo.dart
@@ -28,11 +28,11 @@ class _CupertinoPopupSurfaceFullDefault extends State {
   Widget build(BuildContext context) {
     return SizedBox(
         height: MediaQuery.of(context).size.height/5,
-        child: CupertinoPopupSurfaceBar(context)
+        child: cupertinoPopupSurfaceBar(context)
     );
   }
 
-  Widget CupertinoPopupSurfaceBar(BuildContext context) {
+  Widget cupertinoPopupSurfaceBar(BuildContext context) {
     return CupertinoPopupSurface(
       isSurfacePainted:false,
       child: Container(