Add location layer and Samples example #171

vtm-android-example/AndroidManifest.xml

@@ -38,6 +38,9 @@
         <activity
             android:name=".LineTexActivity"
             android:configChanges="keyboardHidden|orientation|screenSize" />
+        <activity
+            android:name=".LocationActivity"
+            android:configChanges="keyboardHidden|orientation|screenSize" />
         <activity
             android:name=".MapsforgeMapActivity"
             android:configChanges="keyboardHidden|orientation|screenSize" />

vtm-android-example/src/org/oscim/android/test/LocationActivity.java

@@ -0,0 +1,87 @@
+/*
+ * Copyright 2016 devemux86
+ *
+ * This program is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.oscim.android.test;
+
+import android.content.Context;
+import android.location.Location;
+import android.location.LocationListener;
+import android.location.LocationManager;
+import android.os.Bundle;
+
+import org.oscim.core.MapPosition;
+import org.oscim.layers.LocationLayer;
+
+public class LocationActivity extends SimpleMapActivity implements LocationListener {
+    private LocationLayer locationLayer;
+    private LocationManager locationManager;
+    private final MapPosition mapPosition = new MapPosition();
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
+
+        locationLayer = new LocationLayer(mMap);
+        mMap.layers().add(locationLayer);
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        enableAvailableProviders();
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+
+        locationManager.removeUpdates(this);
+    }
+
+    @Override
+    public void onLocationChanged(Location location) {
+        locationLayer.setPosition(location.getLatitude(), location.getLongitude(), location.getAccuracy());
+
+        // Follow location
+        mMap.getMapPosition(mapPosition);
+        mapPosition.setPosition(location.getLatitude(), location.getLongitude());
+        mMap.setMapPosition(mapPosition);
+    }
+
+    @Override
+    public void onProviderDisabled(String provider) {
+    }
+
+    @Override
+    public void onProviderEnabled(String provider) {
+    }
+
+    @Override
+    public void onStatusChanged(String provider, int status, Bundle extras) {
+    }
+
+    private void enableAvailableProviders() {
+        locationManager.removeUpdates(this);
+
+        for (String provider : locationManager.getProviders(true)) {
+            if (LocationManager.GPS_PROVIDER.equals(provider)
+                    || LocationManager.NETWORK_PROVIDER.equals(provider)) {
+                locationManager.requestLocationUpdates(provider, 0, 0, this);
+            }
+        }
+    }
+}

vtm-android-example/src/org/oscim/android/test/Samples.java

@@ -26,14 +26,10 @@ import android.view.View.OnClickListener;
 import android.widget.Button;
 import android.widget.LinearLayout;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 /**
  * A simple start screen for the sample activities.
  */
 public class Samples extends Activity {
-    public static Logger log = LoggerFactory.getLogger(Samples.class);
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -48,6 +44,7 @@ public class Samples extends Activity {
         linearLayout.addView(createButton(PathOverlayActivity.class));
         linearLayout.addView(createButton(LineTexActivity.class));
         linearLayout.addView(createButton(LayerGroupActivity.class));
+        linearLayout.addView(createButton(LocationActivity.class));
         linearLayout.addView(createButton(ThemeStylerActivity.class));
         linearLayout.addView(createButton(S3DBMapActivity.class));
         linearLayout.addView(createButton(JeoIndoorMapActivity.class));