AlarmReceiver.java

package com.jasonrobinson.racer.receiver;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.support.v4.app.NotificationCompat;
import android.support.v4.app.TaskStackBuilder;

import com.jasonrobinson.racer.R;
import com.jasonrobinson.racer.model.Race;
import com.jasonrobinson.racer.ui.ladder.LadderActivity;
import com.jasonrobinson.racer.util.AlarmUtils;

import java.text.DateFormat;

public class AlarmReceiver extends BroadcastReceiver {

    public static final String EXTRA_RACE = "race";

    @Override
    public void onReceive(Context context, Intent intent) {

        Race race = intent.getParcelableExtra(EXTRA_RACE);
        AlarmUtils.cleanUpFinishedAlarm(context, race);

        DateFormat timeFormat = android.text.format.DateFormat.getTimeFormat(context);

        NotificationCompat.Builder builder = new NotificationCompat.Builder(context);
        builder.setSmallIcon(R.drawable.ic_launcher);
        builder.setContentTitle(race.getRaceId());
        builder.setContentInfo(context.getString(R.string.starts_at, timeFormat.format(race.getStartAt())));
        builder.setDefaults(Notification.DEFAULT_SOUND | Notification.DEFAULT_VIBRATE);
        builder.setLights(context.getResources().getColor(R.color.primary), 1000, 10000);
        builder.setAutoCancel(true);

        Intent ladderIntent = new Intent(context, LadderActivity.class);
        ladderIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        ladderIntent.putExtra(LadderActivity.EXTRA_ID, race.getRaceId());

        TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
        stackBuilder.addParentStack(LadderActivity.class);
        stackBuilder.addNextIntent(ladderIntent);

        PendingIntent pendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
        builder.setContentIntent(pendingIntent);

        NotificationManager nm = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
        nm.notify(race.getRaceId(), 0, builder.build());
    }
}