diff --git a/README.md b/README.md
index 3367cdd..4700728 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 
 ```
 dependencies:
-  share_extend: "^1.0.2"
+  share_extend: "^1.0.3"
 ```
 ## 导入
 ```
@@ -14,58 +14,24 @@ import 'package:share_extend/share_extend.dart';
 
 ## 使用
 
-* 如果要分享手机外部存储(external storage)中的图片和文件，对于Android工程来说，
-   1) 需要配置WRITE_EXTERNAL_STORAGE权限，在android工程AndroidManifest.xml中配置
-   ```
-      <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
-   ```
-    对于targetSdkVersion>=23的版本，需要动态获取权限
-    动态权限获取，可以借助其他第三方flutter插件来实现
-
-   2) 需要配置FileProvider来实现文件的分享，在android工程AndroidManifest.xml中配置
-   
-  ```
-          <provider
-              android:name="android.support.v4.content.FileProvider"
-              android:authorities="{your_authorities}"
-              android:grantUriPermissions="true"
-              android:exported="false">
-              <meta-data
-                  android:name="android.support.FILE_PROVIDER_PATHS"
-                  android:resource="@xml/{your_provider_file}" />
-          </provider>
-  ```
-  ```{your_authorities}```  你定义的authorities
+```
 
-  ```{your_provider_file}```  你的provider配置文件名
+//分享文本
+ShareExtend.share("share text", "text");
 
-  工程的res文件夹下，新建一个xml文件夹，添加一个{your_provider_file}的xml文件，配置类似如下：
+//分享图片 （例子中使用了一个image_picker的插件来实现图片的选择)
+File f =
+    await ImagePicker.pickImage(source: ImageSource.gallery);
+ShareExtend.share(f.path, "image");
 
-  ```
-  <?xml version="1.0" encoding="utf-8"?>
-  <resources>
-      <paths>
-          <external-path
-              name="external_cache"
-              path="" />
-      </paths>
-  </resources>
-  ```
-  ### Dart中调用
+//分享文件
+Directory dir = await getApplicationDocumentsDirectory();
+File testFile = new File("${dir.path}/flutter/test.txt");
+if (!await testFile.exists()) {
+  await testFile.create(recursive: true);
+  testFile.writeAsStringSync("test for share documents file");
+}
+ShareExtend.share(testFile.path, "file"); 
 
-  ```
-    // authorities 上面定义authorities
-    
-    //分享文本（只分享文本时，authorities参数是不必需的)
-    ShareExtend.share("share text", "text", authorities);
-    
-    //分享图片 （例子中使用了一个image_picker的插件来实现图片的选择)
-    File f =
-        await ImagePicker.pickImage(source: ImageSource.gallery);
-    ShareExtend.share(f.path, "image", authorities);
-    //分享文件
-    File f =
-      await ImagePicker.pickImage(source: ImageSource.gallery);
-    ShareExtend.share(f.path, "file", authorities);   
-  ```
+```
 
diff --git a/pubspec.yaml b/pubspec.yaml
index 9869fd9..8bd1b06 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: share_extend
 description: A flutter plugin to share text, image, file with system ui. It is compatible with both andorid and ios.
-version: 1.0.2
+version: 1.0.3
 author: zhouteng <qfszyq@gmail.com>
 homepage: https://github.com/zhouteng0217/ShareExtend