Start Service in Android with Example

package com.example.creating_service;
 
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
 
public class MainActivity extends Activity {
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button start = (Button) findViewById(R.id.startService);
        start.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                startService(new Intent(MainActivity.this, MyService.class));
            }
        });
    }
 
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
 
}

package com.example.creating_service;
 
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;
 
public class MyService extends Service {
 
    private static final String var = "MyService";
 
    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return null;
    }
 
    @Override
    public void onCreate() {
        Toast.makeText(this, " MyService Created ", Toast.LENGTH_LONG).show();
        Log.d(var, "onCreate");
    }
 
    @Override
    public void onStart(Intent intent, int startId) {
        Toast.makeText(this, " MyService Started", Toast.LENGTH_LONG).show();
        Log.d(var, "onStart");
        // Note: You can start a new thread and use it for long background
        // processing from here.
    }
 
}