Merge pull request #2 from alibaba/master

merge new code

README.md

@@ -5,9 +5,35 @@
   <a href="https://mp.weixin.qq.com/s?__biz=MzU4MDUxOTI5NA==&mid=2247484367&idx=1&sn=fcbc485f068dae5de9f68d52607ea08f&chksm=fd54d7deca235ec86249a9e3714ec18be8b2d6dc580cae19e4e5113533a6c5b44dfa5813c4c3&scene=0&subscene=131&clicktime=1551942425&ascene=7&devicetype=android-28&version=2700033b&nettype=ctnet&abtest_cookie=BAABAAoACwASABMABAAklx4AVpkeAMSZHgDWmR4AAAA%3D&lang=zh_CN&pass_ticket=1qvHqOsbLBHv3wwAcw577EHhNjg6EKXqTfnOiFbbbaw%3D&wx_header=1">中文介绍</a>
 </p>
 
+
+# Latest News
+
+Currently, version 1.9 of flutter is supported.
+
+flutter branch：v1.9.1-hotfixes
+
+FlutterBoost branch：feature/flutter_1.9_upgrade
+
+FlutterBoost for androidx  branch：feature/flutter_1.9_androidx_upgrade
+
+
+
+```java
+
+    flutter_boost:
+            git:
+                url: 'https://github.com/alibaba/flutter_boost.git'
+                ref: 'feature/flutter_1.9_upgrade'
+```
+
+dingding  group：
+
+<img width="200" src="https://img.alicdn.com/tfs/TB1JSzVeYY1gK0jSZTEXXXDQVXa-892-1213.jpg">
+
+
 # Release Note
 
-Please checkout the release note for the latest 0.1.50 to see changes [0.1.50 release note](https://github.com/alibaba/flutter_boost/releases)
+Please checkout the release note for the latest 0.1.54 to see changes [0.1.54 release note](https://github.com/alibaba/flutter_boost/releases)
 
 # FlutterBoost
 A next-generation Flutter-Native hybrid solution. FlutterBoost is a Flutter plugin which enables hybrid integration of Flutter for your existing native apps with minimum efforts.The philosophy of FlutterBoost is to use Flutter as easy as using a WebView. Managing Native pages and Flutter pages at the same time is non-trivial in an existing App. FlutterBoost takes care of page resolution for you. The only thing you need to care about is the name of the page(usually could be an URL). 
@@ -290,12 +316,6 @@ Please see the example for details.
 This project is licensed under the MIT License - see the [LICENSE.md](LICENSE.md) file for details
 
 
-# Problem feedback group（ dingding group)
-
-<img width="200" src="https://img.alicdn.com/tfs/TB1JSzVeYY1gK0jSZTEXXXDQVXa-892-1213.jpg">
-
-
-
 
 ## 关于我们
 阿里巴巴-闲鱼技术是国内最早也是最大规模线上运行Flutter的团队。

README_CN.md

@@ -2,6 +2,27 @@
   <img src="flutter_boost.png">
 </p>
 
+# 项目最新动态
+
+
+目前已经支持flutter 1.9版本。
+
+对应的flutter 版本是：v1.9.1-hotfixes
+
+flutter boost分支是：feature/flutter_1.9_upgrade
+
+flutter boost androidx  分支是：feature/flutter_1.9_androidx_upgrade
+
+代码引入方式：
+
+```java
+
+    flutter_boost:
+            git:
+                url: 'https://github.com/alibaba/flutter_boost.git'
+                ref: 'feature/flutter_1.9_upgrade'
+```
+
 
 # Release Note
 

android/src/main/java/com/idlefish/flutterboost/BoostFlutterView.java

@@ -221,6 +221,7 @@ public class BoostFlutterView extends FrameLayout {
         super.onDetachedFromWindow();
         getViewTreeObserver().removeOnGlobalLayoutListener(mGlobalLayoutListener);
         onDetach();
+        flutterEngine.getPluginRegistry().getPlatformViewsController().onFlutterViewDestroyed();
     }
 
     public BoostFlutterEngine getEngine(){

android/src/main/java/com/idlefish/flutterboost/XFlutterView.java

@@ -534,7 +534,6 @@ public class XFlutterView extends FrameLayout {
 
     // detach platformviews in page in case memory leak
     flutterEngine.getPluginRegistry().getPlatformViewsController().detach();
-    flutterEngine.getPluginRegistry().getPlatformViewsController().onFlutterViewDestroyed();
 
     // Inform the Android framework that it should retrieve a new InputConnection
     // now that the engine is detached. The new InputConnection will be null, which