اجرای برنامه در پس زمینه گوشی

package com.tutorialspoint;

import android.app.Service;

import android.os.IBinder;

import android.content.Intent;

import android.os.Bundle;

public class HelloService extends Service {

   /** indicates how to behave if the service is killed */

   int mStartMode;

   /** interface for clients that bind */

   IBinder mBinder;    

   /** indicates whether onRebind should be used */

   boolean mAllowRebind;

   /** Called when the service is being created. */

   @Override

   public void onCreate() {

   }

   /** The service is starting, due to a call to startService() */

   @Override

   public int onStartCommand(Intent intent, int flags, int startId) {

      return mStartMode;

   }

   /** A client is binding to the service with bindService() */

   @Override

   public IBinder onBind(Intent intent) {

      return mBinder;

   }

   /** Called when all clients have unbound with unbindService() */

   @Override

   public boolean onUnbind(Intent intent) {

      return mAllowRebind;

   }

   /** Called when a client is binding to the service with bindService()*/

  @Override

   public void onRebind(Intent intent) {

   }

   /** Called when The service is no longer used and is being destroyed */

   @Override

   public void onDestroy() {

   }

}

package com.example.tutorialspoint7.myapplication;

import android.content.Intent;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.os.Bundle;

import android.app.Activity;

import android.util.Log;

import android.view.View;

public class MainActivity extends Activity {

   String msg = "Android : ";

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

   @Override

   public void onCreate(Bundle savedInstanceState) {

      super.onCreate(savedInstanceState);

      setContentView(R.layout.activity_main);

      Log.d(msg, "The onCreate() event");

   }

   public void startService(View view) {

      startService(new Intent(getBaseContext(), MyService.class));

   }

   // Method to stop the service

   public void stopService(View view) {

      stopService(new Intent(getBaseContext(), MyService.class));

   }

}

package com.example.tutorialspoint7.myapplication;

import android.app.Service;

import android.content.Intent;

import android.os.IBinder;

import android.support.annotation.Nullable;

import android.widget.Toast;

/**

   * Created by TutorialsPoint7 on 8/23/2016.

*/

public class MyService extends Service {

   @Nullable

   @Override

   public IBinder onBind(Intent intent) {

      return null;

   }

   @Override

   public int onStartCommand(Intent intent, int flags, int startId) {

      // Let it continue running until it is stopped.

      Toast.makeText(this, "Service Started", Toast.LENGTH_LONG).show();

      return START_STICKY;

   }

   @Override

   public void onDestroy() {

      super.onDestroy();

      Toast.makeText(this, "Service Destroyed", Toast.LENGTH_LONG).show();

   }

}

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

   package="com.example.tutorialspoint7.myapplication">

   <application

      android:allowBackup="true"

      android:icon="@mipmap/ic_launcher"

      android:label="@string/app_name"

      android:supportsRtl="true"

      android:theme="@style/AppTheme">

      <activity android:name=".MainActivity">

         <intent-filter>

            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />

         </intent-filter>

      </activity>

      <service android:name=".MyService" />

   </application>

</manifest>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

   xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"

   android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"

   android:paddingRight="@dimen/activity_horizontal_margin"

   android:paddingTop="@dimen/activity_vertical_margin"

   android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">

   <TextView

      android:id="@+id/textView1"

      android:layout_width="wrap_content"

      android:layout_height="wrap_content"

      android:text="Example of services"

      android:layout_alignParentTop="true"

      android:layout_centerHorizontal="true"

      android:textSize="30dp" />

   <TextView

      android:id="@+id/textView2"

      android:layout_width="wrap_content"

      android:layout_height="wrap_content"

      android:text="Tutorials point "

      android:textColor="#ff87ff09"

      android:textSize="30dp"

      android:layout_above="@+id/imageButton"

      android:layout_centerHorizontal="true"

      android:layout_marginBottom="40dp" />

   <ImageButton

      android:layout_width="wrap_content"

      android:layout_height="wrap_content"

      android:id="@+id/imageButton"

      android:src="@drawable/abc"

      android:layout_centerVertical="true"

      android:layout_centerHorizontal="true" />

   <Button

      android:layout_width="wrap_content"

      android:layout_height="wrap_content"

      android:id="@+id/button2"

      android:text="Start Services"

      android:onClick="startService"

      android:layout_below="@+id/imageButton"

      android:layout_centerHorizontal="true" />

   <Button

      android:layout_width="wrap_content"

      android:layout_height="wrap_content"

      android:text="Stop Services"

      android:id="@+id/button"

      android:onClick="stopService"

      android:layout_below="@+id/button2"

      android:layout_alignLeft="@+id/button2"

      android:layout_alignStart="@+id/button2"

      android:layout_alignRight="@+id/button2"

      android:layout_alignEnd="@+id/button2" />

</RelativeLayout>