NotificationFactory.java

package at.tugraz.examreminder.ui;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.support.v4.app.NotificationCompat;
import android.support.v4.app.TaskStackBuilder;
import at.tugraz.examreminder.R;

public class NotificationFactory {
    Context context;

    public NotificationFactory(Context context) {
        this.context = context;
    }

    public Notification createNewOrChangedExamsNotification() {
        NotificationCompat.Builder builder = new NotificationCompat.Builder(context)
                .setSmallIcon(R.drawable.ic_launcher)
                .setAutoCancel(true)
                .setContentTitle("Exam Reminder")
                .setContentText("There are new or changed exams!");

        Intent resultIntent = new Intent(context, MainActivity.class);
        TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
        stackBuilder.addParentStack(MainActivity.class);
        stackBuilder.addNextIntent(resultIntent);
        PendingIntent resultPendingIntent =
                stackBuilder.getPendingIntent(
                        0,
                        PendingIntent.FLAG_UPDATE_CURRENT
                );
        builder.setContentIntent(resultPendingIntent);
        return builder.build();
    }

    public void sendNotification(Notification notification) {
        NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(42, notification);
    }

}