How to Create Global Broadcast Receiver and Test Service in Android

Introduction

This article explains how to create a global broadcast receiver as well as to create services in an Android project. First of all, we will create a new project in Android.

Procedure

Start the Eclipse IDE.
Create a new project.
Create a MainActivity.java (here Abhijeet.java) file.
Create a new java file bootstartup.java as in the following:
1. public class bootstartup extends BroadcastReceiver {
3. @Override
5. public void onReceive(Context context, Intent intent) {
7. // start the service
8. Intent service=new Intent(context,TestService.class);
9. context.startService(service);
10. Log.e("com.example.myglobalbroadcastreceiver",
11. "BroadcastReceived:"+intent.getAction())
13. // start the app
14. Intent app= new Intent(context,Abhijeet.class);
15. context.startService(app);
Create a new java file TestService.java as in the following:
1. public class TestService extends Service {
3. @Override
4. public IBinder onBind(Intent arg0) {
5. // TODO Auto-generated method stub
6. throw new UnsupportedOperationException("it is not implemented");
7. }
9. @Override
10. public void onCreate() {
11. // TODO Auto-generated method stub
12. super.onCreate();
13. Toast.makeText(getApplicationContext(), "abhijeet's Service is created",1).show();
15. }
17. @Override
18. public void onDestroy() {
19. // TODO Auto-generated method stub
21. Toast.makeText(getApplicationContext(), "Service is destroyed",1).show();
23. super.onDestroy();
24. }
26. @Override
27. public int onStartCommand(Intent intent, int flags, int startId) {
28. // TODO Auto-generated method stub
30. Toast.makeText(getApplicationContext(), " abhijeet's Service is working",1).show();
32. return super.onStartCommand(intent, flags, startId);
33. }
Now add a bootstartup.java file as a receiver.

Step 1: Open the application of the manifest file as in the following:

Step 2: Then click on Add for adding a receiver.

Step 3: It will automatically search the bootstartup receiver class.

Step 4: It is very important for making a global receiver that we should provide a name to that receiver such that the name is started with a dot followed by a lower-case letter.

Step 5: Set the Exported and Enabled properties to true as in the following:

Step 6: Add actions on the receiver in the manifest file as in the following:
Now add a TestService.java file as a Service in the manifest file.

Step 1: Select Service.

Step 2: It will automatically search the TestService class.

Step 3: Select the true option for the exported and enabled properties as in the following:
1. <service android:name="TestService" android:exported="true" android:enabled="true" android:permission="android.permission.INTERNET"></service>

Code- Abhijeet.java

package com.example.myglobalbroadcastreceiver;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.os.Build;
public class Abhijeet extends ActionBarActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_abhijeet);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.abhijeet, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
public PlaceholderFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_abhijeet,
container, false);
return rootView;
}
}
}

bootstartup.java

package com.example.myglobalbroadcastreceiver;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;
public class bootstartup extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
// start the service
Intent service=new Intent(context,TestService.class);
context.startService(service);
Log.e("com.example.myglobalbroadcastreceiver","Broadcast Received:"+intent.getAction());
// start the app
Intent app= new Intent(context,Abhijeet.class);
context.startService(app);
}
}

TestService.java

package com.example.myglobalbroadcastreceiver;
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.widget.Toast;
public class TestService extends Service {
@Override
public IBinder onBind(Intent arg0) {
// TODO Auto-generated method stub
throw new UnsupportedOperationException("it is not implemented");
}
@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
Toast.makeText(getApplicationContext(), "abhijeet's Service is created",1).show();
}
@Override
public void onDestroy() {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), "Service is destroyed",1).show();
super.onDestroy();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(), " abhijeet's Service is working",1).show();
return super.onStartCommand(intent, flags, startId);
}
}

Output

Step 1: Run the Application.

Step 2: Click on the back button.

Step 3: Go to Settings.

Step 4: Go to Data Usage and turn on the mobile data. We can see that the service is working. It is due to the action used in the receiver.