Skip to content

Instantly share code, notes, and snippets.

@vikrum
Last active April 6, 2024 12:00
Show Gist options
  • Save vikrum/6170193 to your computer and use it in GitHub Desktop.
Save vikrum/6170193 to your computer and use it in GitHub Desktop.
Firebase+Android sample app with background Service + local notifications.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.bgfirebaseapp"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="16"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.bgfirebaseapp.MainActivity"
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=".FirebaseBackgroundService"
android:exported="false"
android:process=":remote" >
<intent-filter>
<action android:name="com.example.bgfirebaseapp.FirebaseBackgroundService" />
</intent-filter>
</service>
<receiver android:name=".StartFirebaseAtBoot" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" >
</action>
</intent-filter>
</receiver>
</application>
</manifest>
package com.example.bgfirebaseapp;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.os.IBinder;
import com.firebase.client.DataSnapshot;
import com.firebase.client.Firebase;
import com.firebase.client.ValueEventListener;
public class FirebaseBackgroundService extends Service {
private Firebase f = new Firebase("https://somedemo.firebaseio-demo.com/");
private ValueEventListener handler;
@Override
public IBinder onBind(Intent arg0) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
handler = new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot arg0) {
postNotif(arg0.getValue().toString());
}
@Override
public void onCancelled() {
}
};
f.addValueEventListener(handler);
}
private void postNotif(String notifString) {
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
int icon = R.drawable.ic_launcher;
Notification notification = new Notification(icon, "Firebase" + Math.random(), System.currentTimeMillis());
// notification.flags |= Notification.FLAG_AUTO_CANCEL;
Context context = getApplicationContext();
CharSequence contentTitle = "Background" + Math.random();
Intent notificationIntent = new Intent(context, MainActivity.class);
PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);
notification.setLatestEventInfo(context, contentTitle, notifString, contentIntent);
mNotificationManager.notify(1, notification);
}
}
package com.example.bgfirebaseapp;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Start the background Firebase activity
startService(new Intent(FirebaseBackgroundService.class.getName()));
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
package com.example.bgfirebaseapp;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
/**
* Start the service when the device boots.
*
* @author vikrum
*
*/
public class StartFirebaseAtBoot extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
context.startService(new Intent(FirebaseBackgroundService.class.getName()));
}
}
@ApoorvaRajBhadani
Copy link

You are calling the service once by receiver and once by main activity is there a chance the same service is started twice?

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment