diff --git a/API/iOS API.md b/API/iOS API.md
index 0491ccc..32593a2 100644
--- a/API/iOS API.md	
+++ b/API/iOS API.md	
@@ -4,8 +4,9 @@
 - [获取 RegistrationID](#获取-registrationid)
 - [别名与标签](#别名与标签)
 - [获取 APNS 推送内容](#获取-apns-推送内容)
-	- [点击推送获取](#点击推送获取)
-	- [前台获取](#前台获取)
+	- [点击推送通知](#点击推送通知)
+	- [前台收到推送](#前台收到推送)
+	- [后台收到推送](#后台收到推送)
 - [获取自定义消息内容](#获取自定义消息内容)
 - [设置Badge](#设置badge)
 - [本地通知](#本地通知)
@@ -194,11 +195,11 @@ JPush SDK 会以广播的形式发送 RegistrationID 到应用程序。
 
 ## 获取 APNS 推送内容
 
-### 点击推送获取
+### 点击推送通知
 
 #### event - jpush.openNotification
 
-点击通知进入应用程序时会出发改事件。
+点击通知启动或唤醒应用程序时会出发该事件
 
 #### 代码示例
 
@@ -227,11 +228,11 @@ JPush SDK 会以广播的形式发送 RegistrationID 到应用程序。
 			"_j_msgid":154604475
 		}
 
-### 前台获取
+### 前台收到推送
 
 #### event - jpush.receiveNotification
 
-应用程序处于前台时会触发该事件。
+应用程序处于前台时收到推送会触发该事件
 
 #### 代码示例
 
@@ -260,6 +261,39 @@ JPush SDK 会以广播的形式发送 RegistrationID 到应用程序。
 			"_j_msgid":154604475
 		}
 
+### 后台收到推送
+
+#### event - jpush.backgroundNotification
+
+应用程序处于后台时收到推送会触发该事件，可以在后台执行一段代码。具体配置参考 [iOS 7 Background Remote Notification](http://docs.jpush.io/client/ios_tutorials/#ios-7-background-remote-notification)
+
+#### 代码示例
+
+- 在你需要接收通知的的 js 文件中加入:
+
+		document.addEventListener("jpush.backgroundNotification", onBackgroundNotification, false);
+
+- onBackgroundNotification 需要这样写：
+
+		var onBackgroundNotification = function(event) {
+			var alertContent;
+			alertContent = event.aps.alert;
+			alert("open Notificaiton:" + alertContent);
+		}
+
++ event 举例
+
+		{
+			"aps":{
+				  "badge":1,
+				  "sound":"default",
+				  "alert":"今天去哪儿"
+			},
+			"key1":"value1",
+			"key2":"value2",
+			"_j_msgid":154604475
+		}
+
 #### API - receiveMessageIniOSCallback
 
 用于 iOS 收到应用内消息的回调函数(请注意和通知的区别)，该函数不需要主动调用
diff --git a/package.json b/package.json
index 9583a35..6454456 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "jpush-phonegap-plugin",
-  "version": "2.1.5",
+  "version": "2.1.6",
   "description": "JPush for cordova plugin",
   "cordova": {
     "id": "cn.jpush.phonegap.JPushPlugin",
diff --git a/plugin.xml b/plugin.xml
index 88b38a1..29e03bb 100644
--- a/plugin.xml
+++ b/plugin.xml
@@ -2,7 +2,7 @@
 <plugin xmlns="http://apache.org/cordova/ns/plugins/1.0"
         xmlns:android="http://schemas.android.com/apk/res/android"
         id="cn.jpush.phonegap.JPushPlugin"
-        version="2.1.5">
+        version="2.1.6">
 
     <name>JPush Plugin</name>
     <description>JPush for cordova plugin</description>
diff --git a/src/android/JPushPlugin.java b/src/android/JPushPlugin.java
index 95e797a..ee23659 100644
--- a/src/android/JPushPlugin.java
+++ b/src/android/JPushPlugin.java
@@ -131,6 +131,13 @@ public class JPushPlugin extends CordovaPlugin {
         }
     }
 
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        cordovaActivity = null;
+        instance = null;
+    }
+
     private static JSONObject getMessageObject(String message,
             Map<String, Object> extras) {
         JSONObject data = new JSONObject();
diff --git a/src/ios/Plugins/JPushPlugin.h b/src/ios/Plugins/JPushPlugin.h
index 256b05a..1164636 100644
--- a/src/ios/Plugins/JPushPlugin.h
+++ b/src/ios/Plugins/JPushPlugin.h
@@ -60,10 +60,11 @@
 
 /*
  *  以下为js中可监听到的事件
- *  jpush.openNotification      点击推送消息唤醒或启动app
+ *  jpush.openNotification      点击推送消息启动或唤醒app
  *  jpush.setTagsWithAlias      设置标签、别名完成
  *  jpush.receiveMessage        收到自定义消息
- *  jpush.receiveNotification   前台收到推送消息
+ *  jpush.receiveNotification   前台收到推送
+ *  jpush.backgoundNotification 后台收到推送
  */
 
 @end
diff --git a/src/ios/Plugins/JPushPlugin.m b/src/ios/Plugins/JPushPlugin.m
index 6e78278..32b4ec0 100644
--- a/src/ios/Plugins/JPushPlugin.m
+++ b/src/ios/Plugins/JPushPlugin.m
@@ -356,29 +356,33 @@ static NSDictionary *_luanchOptions = nil;
 
     NSData   *jsonData   = [NSJSONSerialization dataWithJSONObject:userInfo options:0 error:&error];
     NSString *jsonString = [[NSString alloc]initWithData:jsonData encoding:NSUTF8StringEncoding];
-    NSLog(@"%ld",(long)[UIApplication sharedApplication].applicationState);
     switch ([UIApplication sharedApplication].applicationState) {
-        case UIApplicationStateActive:
-        {
+        case UIApplicationStateActive:{
+            //前台收到
             dispatch_async(dispatch_get_main_queue(), ^{
                 [self.commandDelegate evalJs:[NSString stringWithFormat:@"cordova.fireDocumentEvent('jpush.receiveNotification',%@)",jsonString]];
             });
-        }
             break;
-        case UIApplicationStateInactive:
-        case UIApplicationStateBackground:
-        {
+        }
+        case UIApplicationStateInactive:{
+            //后台点击
             dispatch_async(dispatch_get_main_queue(), ^{
                 [self.commandDelegate evalJs:[NSString stringWithFormat:@"cordova.fireDocumentEvent('jpush.openNotification',%@)",jsonString]];
             });
-            
+            break;
         }
+        case UIApplicationStateBackground:{
+            //后台收到
+            dispatch_async(dispatch_get_main_queue(), ^{
+                [self.commandDelegate evalJs:[NSString stringWithFormat:@"cordova.fireDocumentEvent('jpush.backgoundNotification',%@)",jsonString]];
+            });
             break;
+        }
         default:
-            //do nothing
-            break;
+        //do nothing
+        break;
     }
-    
+
 }
 
 @end