解决初始化BeanOffline空值问题

src/android/onservice/NotificationService.java

@@ -115,7 +115,7 @@ public class NotificationService extends Service {
 
     public MyBinder binder = new MyBinder();
 
-    public static BeanOffline offlineAll;  //  给前端返回的离线数据
+    public static BeanOffline offlineAll = new BeanOffline();;  //  给前端返回的离线数据
 
     public static String getOfflineAll() {
         String res = new Gson().toJson(offlineAll);