Re-implement android background-service. Migrate control out of the...

Re-implement android background-service.  Migrate control out of the CordovaPlugin and into BackgroundGeolocationService.  This is required for those who may still wish to have the plugin transmit locations to server via HTTP.  Re-implement HTTP layer with same options as free plugin (namely url, params, headers).  There is no persistence layer currently, so when in-plugin HTTP is enabled, the plugin won't re-try when no network is detected.

plugin.xml

@@ -30,7 +30,9 @@
         
         <config-file target="AndroidManifest.xml" parent="/manifest/application">
             <service android:name="com.transistorsoft.cordova.bggeo.BackgroundGeolocationService" />
-
+            <service android:name="com.transistorsoft.cordova.bggeo.LocationService" />
+            <service android:name="com.transistorsoft.cordova.bggeo.ActivityRecognitionService" />
+            
             <!-- autorun on boot receiver -->
             <receiver android:name="com.transistorsoft.cordova.bggeo.BootReceiver" android:enabled="true" android:exported="false">
                 <intent-filter>

src/android/ActivityRecognitionService.java

+package com.transistorsoft.cordova.bggeo;
+
+import de.greenrobot.event.EventBus;
+
+import com.google.android.gms.location.DetectedActivity;
+import com.google.android.gms.location.ActivityRecognitionResult;
+import android.app.IntentService;
+import android.content.Intent;
+import android.util.Log;
+
+public class ActivityRecognitionService extends IntentService {
+
+    private static final String TAG = "BackgroundGeolocation";
+    
+    public ActivityRecognitionService() {
+        super("com.transistorsoft.cordova.bggeo.ActivityRecognitionService");
+    }
+
+    @Override
+    protected void onHandleIntent(Intent intent) {
+        // Determine whether the fore-ground Activity is running.  If it's not, we'll reboot it.
+        
+        if (ActivityRecognitionResult.hasResult(intent)) {
+            ActivityRecognitionResult result = ActivityRecognitionResult.extractResult(intent);
+            DetectedActivity probableActivity = result.getMostProbableActivity();
+            
+            Log.i(TAG, "Activity detected:" + getActivityName(probableActivity.getType()) + ", confidence:" + probableActivity.getConfidence());
+            if (probableActivity.getConfidence() < 80) {
+                return;
+            }
+
+            switch (probableActivity.getType()) {
+                case DetectedActivity.IN_VEHICLE:
+                case DetectedActivity.ON_BICYCLE:
+                case DetectedActivity.ON_FOOT:
+                case DetectedActivity.WALKING:
+                case DetectedActivity.RUNNING:
+                case DetectedActivity.STILL:
+                    EventBus.getDefault().post(result);
+                    break;
+                case DetectedActivity.UNKNOWN:
+                    return;
+                case DetectedActivity.TILTING:
+                    return;
+            }
+        }
+    }
+    
+    /**
+     * This method has no other purpose than formatting the Activity for log-messages 
+     */
+    private String getActivityName(int activityType) {
+        switch (activityType) {
+            case DetectedActivity.IN_VEHICLE:
+                return "in_vehicle";
+            case DetectedActivity.ON_BICYCLE:
+                return "on_bicycle";
+            case DetectedActivity.ON_FOOT:
+                return "on_foot";
+            case DetectedActivity.RUNNING:
+                return "running";
+            case DetectedActivity.WALKING:
+                return "walking";
+            case DetectedActivity.STILL:
+                return "still";
+            case DetectedActivity.UNKNOWN:
+                return "unknown";
+            case DetectedActivity.TILTING:
+                return "tilting";
+        }
+        return "unknown";
+    }
+}
\ No newline at end of file

src/android/BootReceiver.java

@@ -51,7 +51,7 @@ public class BootReceiver extends BroadcastReceiver implements GoogleApiClient.C
         }
         
         // This is the IntentService we'll provide to google-play API.
-        locationUpdateService = PendingIntent.getService(context, 0, new Intent(context, BackgroundGeolocationService.class), PendingIntent.FLAG_UPDATE_CURRENT);
+        locationUpdateService = PendingIntent.getService(context, 0, new Intent(context, LocationService.class), PendingIntent.FLAG_UPDATE_CURRENT);
     }
     
     private void requestActivityUpdates() {

src/android/LocationService.java

+package com.transistorsoft.cordova.bggeo;
+
+import de.greenrobot.event.EventBus;
+
+import com.google.android.gms.location.FusedLocationProviderApi;
+import android.app.IntentService;
+import android.content.Intent;
+import android.location.Location;
+import android.util.Log;
+
+public class LocationService extends IntentService {
+
+	private static final String TAG = "BackgroundGeolocation";
+	
+	public LocationService() {
+		super("com.transistorsoft.cordova.bggeo.LocationUpdateService");
+	}
+
+	@Override
+	protected void onHandleIntent(Intent intent) {
+		final Location location = intent.getParcelableExtra(FusedLocationProviderApi.KEY_LOCATION_CHANGED);
+		
+		if (location != null) {
+			Log.i(TAG, "Location received: " + location.toString());
+			EventBus.getDefault().post(location);	
+		}
+	}
+	
+}
\ No newline at end of file