#45 FPListener in MapActivity and FPAtlas is a MapListener

Author: hallahan

MapboxAndroidSDK/src/main/java/org/fieldpapers/listeners/FPListener.java

@@ -0,0 +1,7 @@
+package org.fieldpapers.listeners;
+
+public interface FPListener {
+
+    void onMapCenterPageChangeMessage(String msg);
+
+}

MapboxAndroidSDK/src/main/java/org/fieldpapers/model/FPAtlas.java

@@ -4,10 +4,18 @@
 import android.content.Context;
 import android.content.SharedPreferences;
 
+import com.mapbox.mapboxsdk.api.ILatLng;
+import com.mapbox.mapboxsdk.events.MapListener;
+import com.mapbox.mapboxsdk.events.RotateEvent;
+import com.mapbox.mapboxsdk.events.ScrollEvent;
+import com.mapbox.mapboxsdk.events.ZoomEvent;
+import com.mapbox.mapboxsdk.overlay.Marker;
 import com.mapbox.mapboxsdk.views.MapView;
+import com.mapbox.mapboxsdk.views.MapViewListener;
 import com.vividsolutions.jts.index.quadtree.Quadtree;
 
 import org.apache.commons.io.FileUtils;
+import org.fieldpapers.listeners.FPListener;
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
@@ -17,7 +25,7 @@
 import java.util.HashMap;
 import java.util.Map;
 
-public class FPAtlas {
+public class FPAtlas implements MapViewListener, MapListener {
 
     private static final String PREVIOUS_FP_FILE_PATH = "org.redcross.openmapkit.PREVIOUS_FP_FILE_PATH";
     private static File fpGeoJson;
@@ -26,6 +34,8 @@ public class FPAtlas {
     private JSONObject geoJson;
     private String title;
 
+    private Activity activity;
+
     private Quadtree spatialIndex = new Quadtree();
     private Map<String, FPPage> pages = new HashMap<>();
 
@@ -52,7 +62,14 @@ public static void addToMap(Activity activity, MapView mapView) throws IOExcepti
             editor.putString(PREVIOUS_FP_FILE_PATH, fpGeoJson.getAbsolutePath());
         }
 
+        if (atlas == null) return;
+
+        atlas.setActivity(activity);
 
+        mapView.setMapViewListener(atlas);
+        mapView.addListener(atlas);
+//        mapView.getOverlays().add(osmOverlay);
+//        mapView.invalidate();
     }
 
     /**
@@ -100,4 +117,63 @@ public String title() {
         return title;
     }
 
+    public void setActivity(Activity activity) {
+        this.activity = activity;
+    }
+
+    private FPPage findMapCenterPage() {
+
+        return null;
+    }
+
+
+    /**
+     * LISTENERS
+     */
+
+    @Override
+    public void onScroll(ScrollEvent event) {
+        findMapCenterPage();
+    }
+
+    @Override
+    public void onZoom(ZoomEvent event) {
+        findMapCenterPage();
+    }
+
+    @Override
+    public void onRotate(RotateEvent event) {
+        findMapCenterPage();
+    }
+
+    @Override
+    public void onShowMarker(MapView pMapView, Marker pMarker) {
+
+    }
+
+    @Override
+    public void onHideMarker(MapView pMapView, Marker pMarker) {
+
+    }
+
+    @Override
+    public void onTapMarker(MapView pMapView, Marker pMarker) {
+
+    }
+
+    @Override
+    public void onLongPressMarker(MapView pMapView, Marker pMarker) {
+
+    }
+
+    @Override
+    public void onTapMap(MapView pMapView, ILatLng pPosition) {
+
+    }
+
+    @Override
+    public void onLongPressMap(MapView pMapView, ILatLng pPosition) {
+
+    }
+
 }

app/src/main/java/org/redcross/openmapkit/MapActivity.java

@@ -41,6 +41,9 @@
 import com.spatialdev.osm.model.OSMElement;
 import com.spatialdev.osm.model.OSMNode;
 
+import org.fieldpapers.listeners.FPListener;
+import org.fieldpapers.model.FPAtlas;
+import org.json.JSONException;
 import org.redcross.openmapkit.deployments.DeploymentsActivity;
 import org.redcross.openmapkit.odkcollect.ODKCollectHandler;
 import org.redcross.openmapkit.odkcollect.tag.ODKTag;
@@ -54,7 +57,7 @@
 import java.util.LinkedList;
 import java.util.Set;
 
-public class MapActivity extends AppCompatActivity implements OSMSelectionListener {
+public class MapActivity extends AppCompatActivity implements OSMSelectionListener, FPListener {
 
     protected static final String PREVIOUS_LAT = "org.redcross.openmapkit.PREVIOUS_LAT";
     protected static final String PREVIOUS_LNG = "org.redcross.openmapkit.PREVIOUS_LNG";
@@ -142,6 +145,8 @@ protected void onCreate(Bundle savedInstanceState) {
         // initialize basemap object
         basemap = new Basemap(this);
 
+        initializeFP();
+
         initializeOsmXml();
 
         // add user location toggle button
@@ -332,6 +337,19 @@ protected void proportionMapAndList(int topWeight, int bottomWeight) {
         mBottomLinearLayout.setLayoutParams(new LinearLayout.LayoutParams(bottomLayoutParams.width, bottomLayoutParams.height, bottomWeight));
     }
 
+    /**
+     * Adds FieldPapers Overlay to the map (if we have one).
+     */
+    protected void initializeFP() {
+        try {
+            FPAtlas.addToMap(this, mapView);
+        } catch (IOException e) {
+            e.printStackTrace();
+        } catch (JSONException e) {
+            e.printStackTrace();
+        }
+    }
+
     /**
      * Loads OSM XML stored on the device.
      */
@@ -789,4 +807,9 @@ private boolean isAppInstalled(String uri) {
         return app_installed;
     }
 
+    @Override
+    public void onMapCenterPageChangeMessage(String msg) {
+
+    }
+
 }