Implements swift start(). Refs #37.

src/Er recorder adhoc-Bridging-Header.h

@@ -2,3 +2,5 @@
 //  Use this file to import your target's public headers that you would like to expose to Swift.
 //
 
+
+#import "DB.h"

src/Record_my_position-Bridging-Header.h

@@ -2,3 +2,4 @@
 //  Use this file to import your target's public headers that you would like to expose to Swift.
 //
 
+#import "DB.h"

src/Record_my_position_appstore-Bridging-Header.h

@@ -2,3 +2,5 @@
 //  Use this file to import your target's public headers that you would like to expose to Swift.
 //
 
+
+#import "DB.h"

src/SGPS.swift

@@ -18,6 +18,7 @@ enum Accuracy
     private var mGpsIsOn = false
     private var mManager: CLLocationManager
     private var mAccuracy: Accuracy
+    private var mNoLog = false
 
     static func get() -> SGPS
     {
@@ -69,14 +70,14 @@ enum Accuracy
         }
     }
 
-    func start()
+    func stop()
     {
-        println("Starting!")
+        println("Stopping, not implemented!")
     }
 
-    func stop()
+    func pingWatchdog()
     {
-        println("Stopping")
+        println("Pinging watchdog, not implemented!");
     }
 
     /** Converts a coordinate from degrees to decimal minute second format.
@@ -110,4 +111,25 @@ enum Accuracy
         return String(format: "%ddeg %dmin %0.2fsec %@",
             degrees, minutes, seconds, letter)
     }
+
+    /** Starts the GPS tracking.
+     * Returns false if the location services are not available.
+     */
+    func start() -> Bool
+    {
+        if CLLocationManager.locationServicesEnabled() {
+            if (!mGpsIsOn && !mNoLog) {
+                DB.get().log("Starting to update location")
+            }
+
+            pingWatchdog()
+
+            mManager.startUpdatingLocation()
+            gpsIsOn = true
+    		return true
+    	} else {
+            gpsIsOn = false
+            return false
+    	}
+    }
 }