diff --git a/doc/AndroidDocument.md b/doc/AndroidDocument.md
index 0342446..5670208 100644
--- a/doc/AndroidDocument.md
+++ b/doc/AndroidDocument.md
@@ -146,7 +146,7 @@ Help==>About Eclips点击Android对应的图标就可以查看版本了.
 	//登录请求返回结果      
 	if (requestCode == GumpSDK.LOGIN_REQUEST_CODE) {
 		if (resultCode == RESULT_OK) {
-			int uid = data.getIntExtra("userId", -1);
+			String uid = data.getIntExtra("userId", -1);
 			int accountType = data.getIntExtra("accountType", -1);
 			String sessionkey = data.getStringExtra("sessionKey");
 				
@@ -156,22 +156,8 @@ Help==>About Eclips点击Android对应的图标就可以查看版本了.
 	}
 	
 如上将收到成功登录用的userid,此Id标识唯一用户!      
-3.用户绑定邮箱,并填写密码
 
-    GumpSDK.boundMail(MainActivity.this);
-开发者需要在调用的Activity里重写onActivityResult方法以接受用户的绑定结果,通常如下:   
-
-    //绑定邮箱请求返回结果
-	if (requestCode == GumpSDK.BOUND_REQUEST_CODE) {
-		if (resultCode == RESULT_OK) {
-			int uid = data.getIntExtra("userId", -1);
-			int accountType = data.getIntExtra("accountType", -1);
-			String sessionkey = data.getStringExtra("sessionKey");
-		} else if (resultCode == RESULT_CANCELED) {
-			Toast.makeText(this, "operate be canceled", Toast.LENGTH_SHORT).show();
-		}
-    }
-4.支付功能      
+3.支付功能      
 	1)使用gump通行证登录
 
 	Bundle payInfo = new Bundle();