send update broadcasts on service start/stop

src/de/duenndns/aprsdroid/APRSdroid.scala

@@ -28,8 +28,10 @@ class APRSdroid extends Activity with LocationListener with OnClickListener {
 	lazy val locReceiver = new BroadcastReceiver() {
 		override def onReceive(ctx : Context, i : Intent) {
 			val l = i.getParcelableExtra(AprsService.LOCATION).asInstanceOf[Location]
-			onLocationChanged(l)
+			if (l != null)
+				onLocationChanged(l)
 			status.setText(i.getStringExtra(AprsService.PACKET))
+			setupButtons(AprsService.running)
 		}
 	}
 

src/de/duenndns/aprsdroid/AprsService.scala

@@ -41,6 +41,7 @@ class AprsService extends Service with LocationListener {
 			singleShot = true
 		}
 		showToast("Service started: " + i.getAction)
+		sendBroadcast(new Intent(UPDATE).putExtra(PACKET, "started"))
 	}
 
 	override def onBind(i : Intent) : IBinder = null
@@ -55,6 +56,7 @@ class AprsService extends Service with LocationListener {
 		showToast("APRS Service stopped.")
 		locMan.removeUpdates(this);
 		running = false
+		sendBroadcast(new Intent(UPDATE).putExtra(PACKET, "shutdown."))
 	}
 
 	// LocationListener interface