CODEWITHSUNDEEP
androidandroid-backgroundandroid-webservice
user3722005
user3722005

Reputation: 63

Execute web service on background every

I need to execute web service every Hour in the background

Every hour, will check if Internet is available then execute a web service and update data.

How can I do this?

My background service

public class MyService extends Service {

   String tag="TestService";
   @Override
   public void onCreate() {
       super.onCreate();
       Toast.makeText(this, "Service created...", Toast.LENGTH_LONG).show();      
       Log.i(tag, "Service created...");
   }

   @Override
   public void onStart(Intent intent, int startId) {      
       super.onStart(intent, startId);  
       if(isInternet)
       {
           AsyTask web= new AsyTask();
           web.execute();
       }
       Log.i(tag, "Service started...");
   }
   @Override
   public void onDestroy() {
       super.onDestroy();
       Toast.makeText(this, "Service destroyed...", Toast.LENGTH_LONG).show();
   }

   @Override
   public IBinder onBind(Intent intent) {
       return null;

   }

Upvotes: 4

Views: 4088

Answers (2)

Shivam Verma
Shivam Verma

Reputation: 8023

The idea would be to use the AlarmManager to start a background service every hour.

Setup Alarm Manager to start a background service every 60 minutes. This can be done in any of the activities. 

    startServiceIntent = new Intent(context,
            WebService.class);
    startWebServicePendingIntent = PendingIntent.getService(context, 0,
            startServiceIntent, 0);

    alarmManager = (AlarmManager) context
            .getSystemService(Context.ALARM_SERVICE);
    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,
            System.currentTimeMillis(), 60*1000*60,
            startWebServicePendingIntent);

Create a class WebService which extends Service then add the method to sync data with the server inside the onStartCommand() method of the Service. Also, do not forget to declare the service in the manifest.

Edit 1 : 

public class WebService extends Service {

   String tag="TestService";
   @Override
   public void onCreate() {
       super.onCreate();
       Toast.makeText(this, "Service created...", Toast.LENGTH_LONG).show();      
       Log.i(tag, "Service created...");
   }

   @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
       super.onStart(intent, startId);  
       if(isInternet)
       {
           AsyTask web= new AsyTask();
           web.execute();
       }
       Log.i(tag, "Service started...");
   }
   @Override
   public void onDestroy() {
       super.onDestroy();
       Toast.makeText(this, "Service destroyed...", Toast.LENGTH_LONG).show();
   }

   @Override
   public IBinder onBind(Intent intent) {
       return null;

   }

Upvotes: 3

MFP
MFP

Reputation: 1141

add you code of calling webservice inside run method of timer task just like below

Timer timer = new Timer();
timer.schedule(new TimerTask() {
public void run() {
   if(isInternet)
   {
       AsyTask web= new AsyTask();
       web.execute();
   }
   Log.i(tag, "Service started...");
}
}, 0, 3600000);

Upvotes: 0

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