Differential D28 Diff 104 src/it/reyboz/bustorino/ActivityMap.java

Changeset View

Standalone View

src/it/reyboz/bustorino/ActivityMap.java

This file was added.

				package it.reyboz.bustorino;

				import android.content.Context;
				import android.content.Intent;
				import android.os.Build;
				import android.os.Bundle;
				import android.support.annotation.RequiresApi;
				import android.support.v7.app.AppCompatActivity;
				import android.support.v7.preference.PreferenceManager;

				import org.osmdroid.api.IMapController;
				import org.osmdroid.config.Configuration;
				import org.osmdroid.events.DelayedMapListener;
				import org.osmdroid.events.MapListener;
				import org.osmdroid.events.ScrollEvent;
				import org.osmdroid.events.ZoomEvent;
				import org.osmdroid.tileprovider.tilesource.TileSourceFactory;
				import org.osmdroid.util.BoundingBox;
				import org.osmdroid.util.GeoPoint;
				import org.osmdroid.views.MapView;
				import org.osmdroid.views.overlay.Marker;
				import org.osmdroid.views.overlay.infowindow.InfoWindow;

				import it.reyboz.bustorino.backend.Stop;
				import it.reyboz.bustorino.map.CustomInfoWindow;
				import it.reyboz.bustorino.middleware.StopsDB;

				public class ActivityMap extends AppCompatActivity {

				private static MapView map = null;
				public Context ctx;

				@RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
				@Override public void onCreate(Bundle savedInstanceState) {
				super.onCreate(savedInstanceState);

				//handle permissions first, before map is created. not depicted here

				//load/initialize the osmdroid configuration, this can be done
				ctx = getApplicationContext();
				Configuration.getInstance().load(ctx, PreferenceManager.getDefaultSharedPreferences(ctx));
				//setting this before the layout is inflated is a good idea
				//it 'should' ensure that the map has a writable location for the map cache, even without permissions
				//if no tiles are displayed, you can try overriding the cache path using Configuration.getInstance().setCachePath
				//see also StorageUtils
				//note, the load method also sets the HTTP User Agent to your application's package name, abusing osm's tile servers will get you banned based on this string

				//inflate and create the map
				setContentView(R.layout.activity_map);

				map = (MapView) findViewById(R.id.map);
				map.setTileSource(TileSourceFactory.MAPNIK);

				// add ability to zoom with 2 fingers
				map.setMultiTouchControls(true);

				// take the parameters if it's called from other Activities
				Bundle b = getIntent().getExtras();
				GeoPoint marker = null;
				String name = null;
				String ID = null;
				if(b != null) {
				double lat = b.getDouble("lat");
				double lon = b.getDouble("lon");
				marker = new GeoPoint(lat, lon);
				name = b.getString("name");
				ID = b.getString("ID");
				}
				startMap(marker, name, ID);

				// on drag and zoom reload the markers
				map.addMapListener(new DelayedMapListener(new MapListener() {

				@Override
				public boolean onScroll(ScrollEvent paramScrollEvent) {
				loadMarkers();
				return true;
				}

				@Override
				public boolean onZoom(ZoomEvent event) {
				loadMarkers();
				return true;
				}

				}));
				}

				public void startMap(GeoPoint marker, String name, String ID) {

				// move the map on the marker position or on a default view point: Turin, Piazza Castello
				// and set the start zoom
				IMapController mapController = map.getController();
				GeoPoint startPoint;
				if (marker != null) {
				startPoint = marker;
				mapController.setZoom(20.0);
				} else {
				startPoint = new GeoPoint(45.0708, 7.6858);
				mapController.setZoom(18.0);
				}
				// set the minimum zoom level
				map.setMinZoomLevel(15.5);
				mapController.setCenter(startPoint);

				loadMarkers();
				if (marker != null) {
				// make a marker with the info window open for the searched marker
				makeMarker(startPoint, name , ID, true);
				}

				}

				public void makeMarker(GeoPoint geoPoint, String stopName, String ID, boolean isStartMarker) {

				// add a marker
				Marker marker = new Marker(map);

				// set custom info window as info window
				CustomInfoWindow popup = new CustomInfoWindow(map, ID, stopName);
				marker.setInfoWindow(popup);

				// make the marker clickable
				marker.setOnMarkerClickListener((thisMarker, mapView) -> {
				if (thisMarker.isInfoWindowOpen()) {
				// on second click

				// create an intent with these extras
				Intent intent = new Intent(ActivityMap.this, ActivityMain.class);
				Bundle b = new Bundle();
				b.putString("bus-stop-ID", ID);
				b.putString("bus-stop-display-name", stopName);
				intent.putExtras(b);
				intent.setFlags(Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP);

				// start ActivityMain with the previous intent
				startActivity(intent);
				} else {
				// on first click

				// hide all opened info window
				InfoWindow.closeAllInfoWindowsOn(map);
				// show this particular info window
				thisMarker.showInfoWindow();
				// move the map to its position
				map.getController().animateTo(thisMarker.getPosition());
				}

				return true;
				});

				// set its position
				marker.setPosition(geoPoint);
				marker.setAnchor(Marker.ANCHOR_CENTER, Marker.ANCHOR_BOTTOM);
				// display the marker
				map.getOverlays().add(marker);
				// add to it an icon
				marker.setIcon(getResources().getDrawable(R.drawable.bus_marker));
				// add to it a title
				marker.setTitle(stopName);

				// show popup info window of the searched marker
				if (isStartMarker) {
				marker.showInfoWindow();
				}

				}

				public void loadMarkers() {

				// get rid of the previous markers
				map.getOverlays().clear();

				// get the top, bottom, left and right screen's coordinate
				BoundingBox bb = map.getBoundingBox();
				double latFrom = bb.getLatSouth();
				double latTo = bb.getLatNorth();
				double lngFrom = bb.getLonWest();
				double lngTo = bb.getLonEast();

				// get the stops located in those coordinates
				StopsDB stopsDB = new StopsDB(ctx);
				stopsDB.openIfNeeded();
				Stop[] stops = stopsDB.queryAllInsideMapView(latFrom, latTo, lngFrom, lngTo);
				stopsDB.closeIfNeeded();

				// add new markers of those stops
				for (Stop stop : stops) {
				GeoPoint marker = new GeoPoint(stop.getLatitude(), stop.getLongitude());
				makeMarker(marker, stop.getStopDefaultName(), stop.ID, false);
				}

				}

				public void onResume(){
				super.onResume();
				//this will refresh the osmdroid configuration on resuming.
				//if you make changes to the configuration, use
				//SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
				//Configuration.getInstance().load(this, PreferenceManager.getDefaultSharedPreferences(this));
				map.onResume(); //needed for compass, my location overlays, v6.0.0 and up
				}

				public void onPause(){
				super.onPause();
				//this will refresh the osmdroid configuration on resuming.
				//if you make changes to the configuration, use
				//SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
				//Configuration.getInstance().save(this, prefs);
				map.onPause(); //needed for compass, my location overlays, v6.0.0 and up
				}
				}
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