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

128 lines
4.4 KiB
Java

/*
* Copyright 2016-2018 devemux86
* Copyright 2018 Longri
*
* 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.backend.CanvasAdapter;
import org.oscim.backend.canvas.Bitmap;
import org.oscim.backend.canvas.Color;
import org.oscim.core.MapPosition;
import org.oscim.layers.LocationTextureLayer;
import org.oscim.renderer.atlas.TextureAtlas;
import org.oscim.renderer.atlas.TextureRegion;
import org.oscim.renderer.bucket.TextureItem;
import org.oscim.utils.IOUtils;
import java.io.IOException;
import java.io.InputStream;
public class LocationTextureActivity extends BitmapTileActivity implements LocationListener {
private LocationTextureLayer 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);
// load a Bitmap/SVG from resources
InputStream is = null;
Bitmap bmp = null;
try {
is = getResources().openRawResource(R.raw.arrow);
float scale = CanvasAdapter.getScale();
bmp = CanvasAdapter.decodeSvgBitmap(is, (int) (60 * scale), (int) (60 * scale), 100);
} catch (IOException e) {
e.printStackTrace();
} finally {
IOUtils.closeQuietly(is);
}
// create TextureRegion from Bitmap
TextureRegion textureRegion = new TextureRegion(new TextureItem(bmp), new TextureAtlas.Rect(0, 0, bmp.getWidth(), bmp.getHeight()));
// create LocationTextureLayer with created/loaded TextureRegion
locationLayer = new LocationTextureLayer(mMap, textureRegion);
// set color of accuracy circle (Color.BLUE is default)
locationLayer.locationRenderer.setAccuracyColor(Color.get(50, 50, 255));
// set color of indicator circle (Color.RED is default)
locationLayer.locationRenderer.setIndicatorColor(Color.MAGENTA);
// set billboard rendering for TextureRegion (false is default)
locationLayer.locationRenderer.setBillboard(false);
locationLayer.setEnabled(false);
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.setEnabled(true);
locationLayer.setPosition(location.getLatitude(), location.getLongitude(), location.getBearing(), 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);
}
}
}
}