diff --git a/README.md b/README.md
index d1edb96..23e29f2 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 [![Build Status](https://travis-ci.org/jpush/jpush-phonegap-plugin.svg?branch=master)](https://travis-ci.org/jpush/jpush-phonegap-plugin)
 [![QQ Group](https://img.shields.io/badge/QQ%20Group-413602425-red.svg)]()
-[![release](https://img.shields.io/badge/release-3.1.7-blue.svg)](https://github.com/jpush/jpush-phonegap-plugin/releases)
+[![release](https://img.shields.io/badge/release-3.1.8-blue.svg)](https://github.com/jpush/jpush-phonegap-plugin/releases)
 [![platforms](https://img.shields.io/badge/platforms-iOS%7CAndroid-lightgrey.svg)](https://github.com/jpush/jpush-phonegap-plugin)
 [![weibo](https://img.shields.io/badge/weibo-JPush-blue.svg)](http://weibo.com/jpush?refer_flag=1001030101_&is_all=1)
 
@@ -17,16 +17,23 @@
 
 - 通过 Cordova Plugins 安装，要求 Cordova CLI 5.0+：
 
-  	    cordova plugin add jpush-phonegap-plugin --variable APP_KEY=your_jpush_appkey
+	```
+	cordova plugin add jpush-phonegap-plugin --variable APP_KEY=your_jpush_appkey
+	```
 
 - 或直接通过 url 安装：
 
-        cordova plugin add https://github.com/jpush/jpush-phonegap-plugin.git --variable APP_KEY=your_jpush_appkey  
+	```
+	cordova plugin add https://github.com/jpush/jpush-phonegap-plugin.git --variable APP_KEY=your_jpush_appkey  
+	```
 
 - 或下载到本地安装：
 
-        cordova plugin add Your_Plugin_Path  --variable APP_KEY=your_jpush_appkey
+	```
+	cordova plugin add Your_Plugin_Path  --variable APP_KEY=your_jpush_appkey
+	```
 
+> 如果你的 Cordova 版本 >= v7.0.0，在安装插件和添加 platform 时，在命令行最后加上 --nofetch，否则极大可能会报错。
 
 ## Usage
 ### API
@@ -96,7 +103,7 @@ cordova platform update ios
 ## Support
 - QQ 群：413602425
 - [JPush 官网文档](https://docs.jiguang.cn/jpush/guideline/intro/)
-<!-- - [极光社区](http://community.jiguang.cn/) -->
+ - [极光社区](http://community.jiguang.cn/) 
 
 ## Contribute
 Please contribute! [Look at the issues](https://github.com/jpush/jpush-phonegap-plugin/issues).
diff --git a/doc/Common_detail_api.md b/doc/Common_detail_api.md
index 9a03ed0..529b7f2 100644
--- a/doc/Common_detail_api.md
+++ b/doc/Common_detail_api.md
@@ -223,7 +223,7 @@ window.plugins.jPushPlugin.setTagsWithAlias([tag1, tag2], alias1, function () {
           if(device.platform == "Android") {
             alertContent = event.alert
           } else {
-            lertContent = event.aps.alert
+            alertContent = event.aps.alert
           }
 	    }, false)
 
diff --git a/package.json b/package.json
index 6543f19..9de53d8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "jpush-phonegap-plugin",
-    "version": "3.1.7",
+    "version": "3.1.8",
     "description": "JPush for cordova plugin",
     "cordova": {
         "id": "jpush-phonegap-plugin",
@@ -21,13 +21,9 @@
         "cordova-ios",
         "cordova-android"
     ],
-    "engines": [{
-        "name": "cordova",
-        "version": ">=3.0"
-    }],
-    "dependencies": {
+    "devDependencies": {
         "cordova-plugin-device": "*",
-        "cordova-plugin-jcore": "1.1.4"
+        "cordova-plugin-jcore": "*"
     },
     "author": "JiGuang",
     "license": "MIT",
diff --git a/plugin.xml b/plugin.xml
index 0935590..bf10b86 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="jpush-phonegap-plugin"
-  version="3.1.7">
+  version="3.1.8">
 
     <name>JPush</name>
     <description>JPush for cordova plugin</description>
diff --git a/src/android/JPushPlugin.java b/src/android/JPushPlugin.java
index 70a309f..0decb2d 100644
--- a/src/android/JPushPlugin.java
+++ b/src/android/JPushPlugin.java
@@ -458,6 +458,11 @@ public class JPushPlugin extends CordovaPlugin {
         }
     }
 
+    void getConnectionState(JSONArray data, CallbackContext callback) {
+        boolean isConnected = JPushInterface.getConnectionState(cordovaActivity.getApplicationContext());
+        callback.success(String.valueOf(isConnected));
+    }
+
     /**
      *   自定义通知行为，声音、震动、呼吸灯等。
      */
diff --git a/www/JPushPlugin.js b/www/JPushPlugin.js
index f374cd9..b639717 100644
--- a/www/JPushPlugin.js
+++ b/www/JPushPlugin.js
@@ -208,6 +208,12 @@ JPushPlugin.prototype.addNotificationActions = function (actions, categoryId) {
 }
 
 // Android methods
+JPushPlugin.prototype.getConnectionState = function (successCallback) {
+  if (device.platform === 'Android') {
+    this.callNative('getConnectionState', [], successCallback)
+  }
+}
+
 JPushPlugin.prototype.setBasicPushNotificationBuilder = function () {
   if (device.platform === 'Android') {
     this.callNative('setBasicPushNotificationBuilder', [], null)