Add initial code to show alerts

src/com/uncc/gameday/activities/Home.java

@@ -1,20 +1,37 @@
 package com.uncc.gameday.activities;
 
+import android.app.AlarmManager;
+import android.app.PendingIntent;
 import android.content.Context;
+import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.Editor;
 import android.os.Bundle;
 
 import com.uncc.gameday.R;
 import com.uncc.gameday.alerts.AlertFetcher;
+import com.uncc.gameday.alerts.AlertService;
 
 public class Home extends MenuActivity {
 	
+	private final long alarmRate = 300000; // 5 Minutes
+	
 	protected void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
 		setContentView(R.layout.activity_home);
 		
 		Context ctx = getApplicationContext();
+		
+		// Start up the AlarmManager to fetch alerts in the background
+		AlarmManager am = (AlarmManager) this.getSystemService(ALARM_SERVICE);
+		Intent alertFetcher = new Intent(this, AlertService.class);
+		PendingIntent pendingAlertFetcher = PendingIntent.getService(ctx, 0, alertFetcher, 0);
+		
+		// Cancel any previous alarm managers, and start the new one
+		am.cancel(pendingAlertFetcher);
+		am.setRepeating(0, this.alarmRate, this.alarmRate, pendingAlertFetcher);
+		
+		// Double check if we need to do any first-run code
 		this.onFirstRun(ctx);
 	}
 	

src/com/uncc/gameday/alerts/Alert.java

@@ -2,6 +2,16 @@ package com.uncc.gameday.alerts;
 
 import java.util.Date;
 
+import com.uncc.gameday.R;
+import com.uncc.gameday.activities.Home;
+
+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;
+
 public class Alert {
 	
 	private Date alarmDate;
@@ -27,5 +37,22 @@ public class Alert {
 	public void setShown(boolean shown) {
 		this.shown = shown;
 	}
+	
+	public void displayNotification(Context ctx) {
+		NotificationCompat.Builder builder = new NotificationCompat.Builder(ctx)
+			.setSmallIcon(R.drawable.ic_launcher)
+			.setContentTitle("GameDay Alert")
+			.setContentText(this.getMessage());
+		
+		Intent resultIntent = new Intent(ctx, Home.class);
+		TaskStackBuilder stackBuilder = TaskStackBuilder.create(ctx);
+		stackBuilder.addParentStack(Home.class);
+		stackBuilder.addNextIntent(resultIntent);
+		PendingIntent resultPendingIntent =	stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
+		builder.setContentIntent(resultPendingIntent);
+		
+		NotificationManager notificationManager = (NotificationManager) ctx.getSystemService(Context.NOTIFICATION_SERVICE);
+		notificationManager.notify(0, builder.build());
+	}
 
 }

src/com/uncc/gameday/alerts/AlertDB.java

@@ -31,4 +31,9 @@ public class AlertDB {
 	public void deleteAlerts(List<Alert> alerts) {
 		// Remove multiple dates from the database
 	}
+	
+	public List<Alert> fetchUnread() {
+		// Fetch all unread alerts
+		return null;
+	}
 }

src/com/uncc/gameday/alerts/AlertService.java

@@ -1,6 +1,11 @@
 package com.uncc.gameday.alerts;
 
+import java.util.List;
+
+import com.uncc.gameday.GameDay;
+
 import android.app.IntentService;
+import android.content.Context;
 import android.content.Intent;
 
 public class AlertService extends IntentService {
@@ -13,6 +18,14 @@ public class AlertService extends IntentService {
 	@Override
 	protected void onHandleIntent(Intent intent) {
 		// Go fetch all the alerts!
+		Context appContext = GameDay.getAppContext();
+		AlertDB dbHandle = new AlertDB();
+		List<Alert> alerts = dbHandle.fetchUnread();
+		
+		// And then display all of them!
+		for (Alert a: alerts) {
+			a.displayNotification(appContext);
+		}
 	}
 
 }