Alarm with Service and BroadcastReceiver

 AlarmServiceActivity.java


package com.ann;

import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

public class AlarmServiceActivity extends Activity {
    EditText txt;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       
       
    }
    public void start(View v){
        txt=(EditText)findViewById(R.id.txt);
        int i=Integer.parseInt(txt.getText().toString());
        Intent intent=new Intent(this,myBroadcast.class);
        PendingIntent intt=PendingIntent.getBroadcast(this, 234, intent, 0);
       
        AlarmManager alarm=(AlarmManager)getSystemService(ALARM_SERVICE);
       alarm.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()+(i*1000), intt);
       //startService(new Intent(this,Myservice.class));

       Toast.makeText(this, "Alarm set in " + i + " seconds",
                Toast.LENGTH_LONG).show();
       
    }
   public void stop(View v){
      Intent i=new Intent(this,Myservice.class);
      stopService(i);
   }
  
   
}

myBroadcast.java

package com.ann;


import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.media.MediaPlayer;
import android.sax.StartElementListener;
import android.widget.Toast;

public class myBroadcast extends BroadcastReceiver {
//MediaPlayer mp;
    @Override
    public void onReceive(Context context, Intent intent) {
        Intent sintent=new Intent(context,AlarmServiceActivity.class);
        sintent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        context.startActivity(sintent);
        Toast.makeText(context, "Don't panik but your time is up!!!!.",
                Toast.LENGTH_LONG).show();

        context.startService(new Intent(context,Myservice.class));


}
 }

Myservice.java


package com.ann;

import android.app.Service;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.IBinder;
import android.util.Log;
import android.view.View;
import android.widget.Toast;

public class Myservice extends Service {
    MediaPlayer mp;

    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return null;
    }
    public void onCreate(){
        mp=new MediaPlayer();
        mp=MediaPlayer.create(this, R.raw.roja);
        //mp.setLooping(false);
       
    }
    @Override
    public void onStart(Intent intent, int startId) {
        // TODO Auto-generated method stub
        try{
        Toast.makeText(this, "My service started ",Toast.LENGTH_LONG).show();   
        Log.w("inside","onStart");

        mp.start();
        }catch(Exception e){}
    }
    @Override   
    public void onDestroy() {   
        Toast.makeText(this, "My Service Stopped", Toast.LENGTH_LONG).show();
        Log.d("inside", "onDestroy");
        mp.stop();
        }   
    
}
}


AndroidManifest.xml 


<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.ann"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="8" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".AlarmServiceActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <service android:name="Myservice"></service>
        <receiver android:name="myBroadcast"></receiver>
    </application>

</manifest>