Your Open Source

Free YourOpenSource Softwares Online Resources and Softwares Downloads with Demo

Digg

Yahoo

delicious

Mobile >> Android

Create Service in Android

Create Services in Android Application

Service ( android.app.Service ) is a class that run in background, not interact with user so this services we can use for Alarm Clock something else. The following way to create a services,

Step 1:- First you just create a standard the Activity, its a GUI for users, here we just call the service funtions to get the result, the code as follow,

package com.yos.yoscall;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.widget.TextView;



public class  YosCall extends Activity {

    /** Called when the activity is first created. */

	public TextView t;

    @Override

    

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        t = (TextView ) findViewById(R.id.txtView);

        t.setText("starting...");

       try{

        Monitor.setMainActivity(this);

       }catch(Exception e){

    	   t.setText(e.getMessage());

       }

    }

}

Step 2:- the main.xml, just create a textview only, the XML code should like

Step 3:- Need to create a class for Services, for example Monitor.java class, here extends the "Sevice" class also use the Timer class to run the programs frequent in background.

package com.yos.yoscall;



import java.util.*;

import android.app.Service;

import android.content.Intent;

import android.os.IBinder;

import android.os.SystemClock;



class  Monitor extends Service {

	private static final int PERIOD=1000;

	private static YosCall YOS_CALL;

	static long i=0;

	private static Timer timer = new Timer();



	

	@Override

	public void onCreate() {

		super.onCreate();

	}

	

	public static void setMainActivity(YosCall activity) {

		YOS_CALL = activity;

		YOS_CALL.t.setText("started!!");

		_startService();

		//SystemClock.sleep(PERIOD);

	}



	@Override

	public IBinder onBind(Intent intent) {

		return(null);

	}

	

	@Override

	public void onDestroy() {

		super.onDestroy();

		

	}

	public static void update(){

		Date date = new Date();

		i++;

		YOS_CALL.t.setText( i + "::"+ date.toGMTString()  );

	

	}

	private static void _startService() {

		  timer.scheduleAtFixedRate(

		      new TimerTask() {

		        public void run() {

		        	update();			

		        }

		      },

		      0,

		      PERIOD);

		}	

}

Step 5

Build a Service

we need to create a service in the AndroidManifest.xml, the following code need to be added in the
Now, you run the application, it will run timer and increase "i" value in the background. Enjoy!!