Service

Hello,

Now we are going to learn how to start a service at boot time, i.e. to start our service when device starts up.

First we have to create a BroadcastReceiver which will be started when boot completes as

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;

public class MyStartupIntentReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
}
}

onRecieve will be first called when the BroadcastReceiver MyStartupIntentReceiver starts.

Next make an entry of this receiver in AndroidManifest.xml as

<receiver android:name="MyStartupIntentReceiver">
<intent-filter>
<action
android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.HOME" />
</intent-filter>
</receiver>

Here in intent filter we have declared the action as android.intent.action.BOOT_COMPLETED , so that this receiver and intent with action android.intent.action.BOOT_COMPLETED

Now this receiver will be intimated when boot completes

Next if we want to start a service then the procedure is as follows

Create a Service as

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 {

 @Override
 public IBinder onBind(Intent intent) {

  return null;

 }

 @Override
 public void onCreate() {
  super.onCreate();

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

 }

 @Override
 public void onDestroy() {
  super.onDestroy();

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

 }

 @Override
 public void onStart(Intent intent, int startId) {

  super.onStart(intent, startId);

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

 }
}

Make an entry of this service in AndroidManifest.xml as

<service android:name="MyService">
<intent-filter>
<action
android:name="com.wissen.startatboot.MyService" />
</intent-filter>
</service>

Now start this service in the BroadcastReceiver MyStartupIntentReceiver’s onReceive method as

 public void onReceive(Context context, Intent intent) {
  Intent serviceIntent = new Intent();
  serviceIntent.setAction("com.wissen.startatboot.MyService");
  context.startService(serviceIntent);

 }

Next you can write the code that you want to execute when device boots up in the BroadcastReceiver or in the Service