Local service demo : Service « Network « Android

1. Android
2. Network
3. Service

Local service demo

  


package app.test;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.util.Log;

class BackgroundService extends Service
{
    private static final String TAG = "BackgroundService";
  private NotificationManager notificationMgr;
    private ThreadGroup myThreads = new ThreadGroup("ServiceWorker");
    
    @Override
    public void onCreate() {
        super.onCreate();
        notificationMgr =(NotificationManager)getSystemService(NOTIFICATION_SERVICE);
        displayNotificationMessage("Background Service is running");
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        super.onStartCommand(intent, flags, startId);
        int counter = intent.getExtras().getInt("counter");
        new Thread(myThreads, new ServiceWorker(counter), "BackgroundService")
          .start();
        return START_NOT_STICKY;
    }

    class ServiceWorker implements Runnable
    {
      private int counter = -1;
    public ServiceWorker(int counter) {
      this.counter = counter;
    }

    public void run() {
            try {
        Thread.sleep(10000);
      } catch (InterruptedException e) {
      }
        }
    }

    @Override
    public void onDestroy()
    {
        myThreads.interrupt();
        notificationMgr.cancelAll();
        super.onDestroy();
    }

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

    private void displayNotificationMessage(String message)
    {
        Notification notification = new Notification(R.drawable.icon,message, System.currentTimeMillis());
        
        notification.flags = Notification.FLAG_NO_CLEAR;

        PendingIntent contentIntent = 
                PendingIntent.getActivity(this, 0, new Intent(this, MainActivity.class), 0);

        notification.setLatestEventInfo(this, TAG, message, contentIntent);

        notificationMgr.notify(0, notification);
    }
}

public class Test extends Activity
{
    private int counter = 1;

    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }

    public void doClick(View view) {
        switch(view.getId()) {
        case R.id.startBtn:
            Intent intent = new Intent(Test.this,
                    BackgroundService.class);
            intent.putExtra("counter", counter++);
            startService(intent);
            break;
        case R.id.stopBtn:
            stopService();
        }
    }

    private void stopService() {
        if(stopService(new Intent(Test.this,
                    BackgroundService.class)))
          Log.v("", "stopService was successful");
        else
          Log.v("", "stopService was unsuccessful");
    }

    @Override
    public void onDestroy()
    {
      stopService();
        super.onDestroy();
    }
}
<?xml version="1.0" encoding="utf-8"?>
<!-- This file is /res/layout/main.xml -->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"  android:layout_height="fill_parent"
    >
<Button  android:id="@+id/startBtn"
    android:layout_width="wrap_content"  android:layout_height="wrap_content"
    android:text="Start Service"  android:onClick="doClick" />
<Button  android:id="@+id/stopBtn"
    android:layout_width="wrap_content"  android:layout_height="wrap_content"
    android:text="Stop Service"  android:onClick="doClick" />

</LinearLayout>

   
    
  

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