// Example how to calculate zoom level for some bbox
internal virtual void zoomToBBox()
{
mapView.DoWhenSurfaceCreated(() =>
{
GLMapBBox bbox = new GLMapBBox();
bbox.AddPoint(MapPoint.CreateFromGeoCoordinates(52.5037, 13.4102)); // Berlin
bbox.AddPoint(MapPoint.CreateFromGeoCoordinates(53.9024, 27.5618)); // Minsk
mapView.SetMapCenter(bbox.Center(), false);
mapView.SetMapZoom(mapView.MapZoomForBBox(bbox, mapView.Width, mapView.Height), false);
});
}
internal virtual void zoomToPoint()
{
//New York
//MapPoint pt = new MapPoint(-74.0059700 , 40.7142700 );
//Belarus
//MapPoint pt = new MapPoint(27.56, 53.9);
//;
// Move map to the Montenegro capital
MapPoint pt = MapPoint.CreateFromGeoCoordinates(42.4341, 19.26);
GLMapView mapView = (GLMapView)this.FindViewById(Resource.Id.map_view);
mapView.SetMapCenter(pt, false);
mapView.SetMapZoom(16, false);
}
internal virtual void addMultiline()
{
MapPoint[] line1 = new MapPoint[5];
line1[0] = MapPoint.CreateFromGeoCoordinates(53.8869, 27.7151); // Minsk
line1[1] = MapPoint.CreateFromGeoCoordinates(50.4339, 30.5186); // Kiev
line1[2] = MapPoint.CreateFromGeoCoordinates(52.2251, 21.0103); // Warsaw
line1[3] = MapPoint.CreateFromGeoCoordinates(52.5037, 13.4102); // Berlin
line1[4] = MapPoint.CreateFromGeoCoordinates(48.8505, 2.3343); // Paris
MapPoint[] line2 = new MapPoint[3];
line2[0] = MapPoint.CreateFromGeoCoordinates(52.3690, 4.9021); // Amsterdam
line2[1] = MapPoint.CreateFromGeoCoordinates(50.8263, 4.3458); // Brussel
line2[2] = MapPoint.CreateFromGeoCoordinates(49.6072, 6.1296); // Luxembourg
MapPoint[][] multiline = new MapPoint[][] { line1, line2 };
GLMapVectorObject obj = GLMapVectorObject.CreateMultiline(multiline);
// style applied to all lines added. Style is string with mapcss rules. Read more in manual.
mapView.AddVectorObjectWithStyle(obj, GLMapVectorCascadeStyle.CreateStyle("line{width: 2pt;color:green;layer:100;}"), null);
}
internal virtual void offlineSearch()
{
GLSearchCategories categories = GetSearchCategories(Resources);
GLSearchOffline searchOffline = new GLSearchOffline();
searchOffline.SetCategories(categories); //Set categories to use for search
searchOffline.SetCenter(MapPoint.CreateFromGeoCoordinates(42.4341, 19.26)); //Set center of search
searchOffline.SetLimit(20); //Set maximum number of results. By default is is 100
searchOffline.SetLocaleSettings(mapView.LocaleSettings); //Locale settings to give bonus for results that match to user language
GLSearchCategory[] category = categories.GetStartedWith(new string[] { "food" }, localeSettings); //find categories by name
if (category.Length != 0)
{
searchOffline.AddCategoryFilter(category[0]); //Filter results by category
}
//searchOffline.addNameFilter("cali"); //Add filter by name
searchOffline.Start(new GLMapSearchCompletionAnonymousInnerClassHelper(this));
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
// Create your application here
SetContentView(Resource.Layout.map);
mapView = (GLMapView)FindViewById(Resource.Id.map_view);
// Map list is updated, because download button depends on available map list and during first launch this list is empty
GLMapManager.UpdateMapList(this, null);
btnDownloadMap = (Button)this.FindViewById(Resource.Id.button_dl_map);
btnDownloadMap.Click += (object sender, EventArgs e) =>
{
if (mapToDownload != null)
{
GLMapDownloadTask task = GLMapManager.GetDownloadTask(mapToDownload);
if (task != null)
{
task.Cancel();
}
else
{
GLMapManager.CreateDownloadTask(mapToDownload, this).Start();
}
updateMapDownloadButtonText();
}
else
{
Intent i = new Intent(Application.Context, typeof(DownloadActivity));
MapPoint pt = mapView.MapCenter;
i.PutExtra("cx", pt.X);
i.PutExtra("cy", pt.Y);
Application.Context.StartActivity(i);
}
};
GLMapManager.AddStateListener(this);
localeSettings = new GLMapLocaleSettings();
mapView.LocaleSettings = localeSettings;
mapView.LoadStyle(Assets, "DefaultStyle.bundle");
mapView.SetUserLocationImages(mapView.ImageManager.Open("DefaultStyle.bundle/circle-new.svgpb", 1, 0), mapView.ImageManager.Open("DefaultStyle.bundle/arrow-new.svgpb", 1, 0));
mapView.SetScaleRulerStyle(GLUnits.SI, GLMapPlacement.BottomCenter, new MapPoint(10, 10), 200);
mapView.SetAttributionPosition(GLMapPlacement.TopCenter);
CheckAndRequestLocationPermission();
Bundle b = Intent.Extras;
Samples example = (Samples)b.GetInt("example");
switch (example)
{
case Samples.MAP_EMBEDD:
if (!GLMapManager.AddMap(Assets, "Montenegro.vm", null))
{
//Failed to unpack to caches. Check free space.
}
zoomToPoint();
break;
case Samples.MAP_ONLINE:
GLMapManager.SetAllowedTileDownload(true);
break;
case Samples.MAP_ONLINE_RASTER:
mapView.RasterTileSources = new GLMapRasterTileSource[] { new OSMTileSource(this) };
break;
case Samples.ZOOM_BBOX:
zoomToBBox();
break;
case Samples.FLY_TO:
{
mapView.SetMapCenter(MapPoint.CreateFromGeoCoordinates(37.3257, -122.0353), false);
mapView.SetMapZoom(14, false);
Button btn = (Button)FindViewById(Resource.Id.button_action);
btn.Visibility = ViewStates.Visible;
btn.Text = "Fly";
btn.Click += (object sender, EventArgs e) =>
{
double min_lat = 33;
double max_lat = 48;
double min_lon = -118;
double max_lon = -85;
double lat = min_lat + (max_lat - min_lat) * new Random(1).NextDouble();
double lon = min_lon + (max_lon - min_lon) * new Random(2).NextDouble();
MapGeoPoint geoPoint = new MapGeoPoint(lat, lon);
mapView.FlyTo(geoPoint, 15, 0, 0);
};
GLMapManager.SetAllowedTileDownload(true);
break;
}
case Samples.OFFLINE_SEARCH:
GLMapManager.AddMap(Assets, "Montenegro.vm", null);
zoomToPoint();
offlineSearch();
break;
case Samples.MARKERS:
mapView.LongClickable = true;
gestureDetector = new GestureDetector(this, new SimpleOnGestureListenerAnonymousInnerClassHelper(this));
mapView.SetOnTouchListener(new TouchListener(gestureDetector));
addMarkers();
GLMapManager.SetAllowedTileDownload(true);
break;
case Samples.MARKERS_MAPCSS:
addMarkersWithMapcss();
gestureDetector = new GestureDetector(this, new SimpleOnGestureListenerAnonymousInnerClassHelper2(this));
mapView.SetOnTouchListener(new TouchListener(gestureDetector));
GLMapManager.SetAllowedTileDownload(true);
break;
case Samples.MULTILINE:
addMultiline();
break;
case Samples.POLYGON:
addPolygon();
break;
case Samples.CAPTURE_SCREEN:
zoomToPoint();
captureScreen();
break;
case Samples.IMAGE_SINGLE:
{
Button btn = (Button)this.FindViewById(Resource.Id.button_action);
btn.Visibility = ViewStates.Visible;
delImage(btn, null);
break;
}
case Samples.IMAGE_MULTI:
mapView.LongClickable = true;
gestureDetector = new GestureDetector(this, new SimpleOnGestureListenerAnonymousInnerClassHelper3(this));
mapView.SetOnTouchListener(new TouchListener(gestureDetector));
break;
case Samples.GEO_JSON:
loadGeoJSON();
break;
case Samples.STYLE_LIVE_RELOAD:
styleLiveReload();
break;
}
mapView.SetCenterTileStateChangedCallback(() =>
{
RunOnUiThread(() =>
{
updateMapDownloadButton();
});
});
mapView.SetMapDidMoveCallback(() =>
{
if (example == Samples.CALLBACK_TEST)
{
Log.Warn("GLMapView", "Did move");
}
RunOnUiThread(() =>
{
updateMapDownloadButtonText();
});
});
}
