How to implement the IM function in the app the second fast realization of the offline message module--Arrow Buckle technology Arrownock

How to implement the IM function in the app the second fast realization of the offline message module

An app in the actual use of the chat function, not always stay in the interface, while waiting for friends to send messages, it is possible to jump to other interfaces, it is possible to switch to other apps.

When the current app enters the background and a friend sends a message, you need to push a message to the device. Take Android, for example, to receive an offline message notification requires binding Anpush, the practice is to call Anim.bindanpushservice (AnID, AppKey, Anpushtype).

Call Anim.disconnect () when the app enters the background, and call Anim.connect () when the app returns to the foreground. However, if you write this sentence in every activity to achieve the ability to receive offline functions, it is too complicated.

Here's a tip on how to receive a unified management user's offline messages:

Step One

The establishment of baseactivity, after which all activity is inherited baseactivity.

Step Two

Baseactivity creates a global variable isactive to True, which is used to record whether the current interface is entering the background.

Step Three

When the app enters the background, it writes in the OnStop life cycle method:

     @Override     protected void onstop ()  {         super.onstop ();        //  App Access Backstage         if  (!isapponforeground ())  {             try {                 anim.disconnect ();             } catch  (arrownockexception e)  {                 e.printstacktrace ();             }             //  global variable isactive = false  record is currently in the background              isactive = false;        }     }

Step Four

When the app returns to the foreground, write in the Onresume method:

     @Override     protected void onresume ()  {         super.onresume ();         //  app wake-up from the background, enter the front desk         if  (!isactive)  {             try {                 anim.connect (clientId);             } catch  (arrownockexception e)  {                 e.printstacktrace ();             }             isActive = true;         }    }

Step Five

How to determine whether a program is running in the foreground:

In the process to find the current app information, determine whether to run in the foreground     private boolean isapponforeground ()  {         activitymanager activitymanager = (ActivityManager)   Getapplicationcontext ()             . Getsystemservice (Context.activity_service);        string  Packagename =getapplicationcontext (). Getpackagename ();         List<runningappprocessinfo>appprocesses = activitymanager.getrunningappprocesses ();         if  (appprocesses == null)  {             return false;         }        for  (runningappprocessinfo appprocess  : appprocesses)  {            if  (AppProcess.processName.equals (PackageName)                      && appProcess.importance == RunningAppProcessInfo                          . Importance_foreground)  {                 return true;            }         }        return  false;    }

How to implement the IM feature series in the app article:

A common analysis of offline messages

The second fast realization of the offline message module

Three fast implementation of offline message push module

The four create a robust message sending module

The five rapid implementation of picture receiving and sending

The six fast realization of group chat advanced features

Seven fast implementation of chat list sorting module

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How to implement the IM function in the app the second fast realization of the offline message module--Arrow Buckle technology Arrownock