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Samples: POI Search example, close #394

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This commit is contained in:
Emux 2017-09-07 12:02:39 +03:00
parent 1861ca4a1b
commit 3449bd86e8
6 changed files with 207 additions and 2 deletions
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1
docs/Changelog.md
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@ -5,6 +5,7 @@
- Mapsforge themes compatibility [#100](https://github.com/mapsforge/vtm/issues/100)
- Render themes: line symbol [#124](https://github.com/mapsforge/vtm/issues/124)
- Render themes: stroke dash array [#131](https://github.com/mapsforge/vtm/issues/131)
- POI Search example [#394](https://github.com/mapsforge/vtm/issues/394)
- Mapsforge fix artifacts for zoom > 17 [#231](https://github.com/mapsforge/vtm/issues/231)
- vtm-theme-comparator module [#387](https://github.com/mapsforge/vtm/issues/387)
- Many other minor improvements and bug fixes

6
vtm-android-example/AndroidManifest.xml
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@ -88,6 +88,12 @@
<activity
android:name=".PathOverlayActivity"
android:configChanges="keyboardHidden|orientation|screenSize" />
<activity
android:name=".PoiSearchActivity"
android:configChanges="keyboardHidden|orientation|screenSize" />
<activity
android:name=".PoiSearchActivity$PoiFilePicker"
android:configChanges="keyboardHidden|orientation|screenSize" />
<activity
android:name=".POTTextureActivity"
android:configChanges="keyboardHidden|orientation|screenSize" />

12
vtm-android-example/build.gradle
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@ -1,5 +1,9 @@
apply plugin: 'com.android.application'
repositories {
maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
}
dependencies {
compile project(':vtm-android')
compile project(':vtm-extras')
@ -12,6 +16,14 @@ dependencies {
compile project(':vtm-themes')
compile 'com.noveogroup.android:android-logger:1.3.6'
compile 'com.android.support:support-v4:26.0.0'
compile 'org.mapsforge:mapsforge-core:master-SNAPSHOT'
compile 'org.mapsforge:mapsforge-poi:master-SNAPSHOT'
compile 'org.mapsforge:mapsforge-poi-android:master-SNAPSHOT'
compile 'org.mapsforge:spatialite-android:master-SNAPSHOT'
compile 'org.mapsforge:spatialite-android:master-SNAPSHOT:natives-armeabi'
compile 'org.mapsforge:spatialite-android:master-SNAPSHOT:natives-armeabi-v7a'
compile 'org.mapsforge:spatialite-android:master-SNAPSHOT:natives-x86'
}
android {

5
vtm-android-example/src/org/oscim/android/test/MapsforgeMapActivity.java
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@ -46,8 +46,9 @@ import org.oscim.tiling.source.mapfile.MapFileTileSource;
import org.oscim.tiling.source.mapfile.MapInfo;
public class MapsforgeMapActivity extends MapActivity {
private static final int SELECT_MAP_FILE = 0;
private static final int SELECT_THEME_FILE = 1;
static final int SELECT_MAP_FILE = 0;
static final int SELECT_THEME_FILE = SELECT_MAP_FILE + 1;
private TileGridLayer mGridLayer;
private DefaultMapScaleBar mMapScaleBar;

184
vtm-android-example/src/org/oscim/android/test/PoiSearchActivity.java Normal file
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@ -0,0 +1,184 @@
/*
* Copyright 2017 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.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.Menu;
import android.widget.Toast;
import org.mapsforge.poi.android.storage.AndroidPoiPersistenceManagerFactory;
import org.mapsforge.poi.storage.ExactMatchPoiCategoryFilter;
import org.mapsforge.poi.storage.PoiCategoryFilter;
import org.mapsforge.poi.storage.PoiCategoryManager;
import org.mapsforge.poi.storage.PoiPersistenceManager;
import org.mapsforge.poi.storage.PointOfInterest;
import org.oscim.android.filepicker.FilePicker;
import org.oscim.android.filepicker.FilterByFileExtension;
import org.oscim.backend.canvas.Bitmap;
import org.oscim.core.BoundingBox;
import org.oscim.core.GeoPoint;
import org.oscim.event.Gesture;
import org.oscim.event.GestureListener;
import org.oscim.event.MotionEvent;
import org.oscim.layers.Layer;
import org.oscim.layers.marker.ItemizedLayer;
import org.oscim.layers.marker.MarkerItem;
import org.oscim.layers.marker.MarkerSymbol;
import org.oscim.map.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import static org.oscim.android.canvas.AndroidGraphics.drawableToBitmap;
/**
* POI search.<br/>
* Long press on map to search inside visible bounding box.<br/>
* Tap on POIs to show their name (in default locale).
*/
public class PoiSearchActivity extends MapsforgeMapActivity implements ItemizedLayer.OnItemGestureListener<MarkerItem> {
private static final Logger log = LoggerFactory.getLogger(PoiSearchActivity.class);
private static String POI_FILE;
private static final String POI_CATEGORY = "Restaurants";
private static final int SELECT_POI_FILE = MapsforgeMapActivity.SELECT_THEME_FILE + 1;
public static class PoiFilePicker extends FilePicker {
public PoiFilePicker() {
setFileDisplayFilter(new FilterByFileExtension(".poi"));
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Map events receiver
mMap.layers().add(new PoiSearchActivity.MapEventsReceiver(mMap));
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
return false;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
if (requestCode == SELECT_MAP_FILE) {
startActivityForResult(new Intent(this, PoiFilePicker.class),
SELECT_POI_FILE);
} else if (requestCode == SELECT_POI_FILE) {
if (resultCode != RESULT_OK || intent == null || intent.getStringExtra(FilePicker.SELECTED_FILE) == null) {
finish();
return;
}
POI_FILE = intent.getStringExtra(FilePicker.SELECTED_FILE);
}
}
@Override
public boolean onItemSingleTapUp(int index, MarkerItem item) {
Toast.makeText(this, item.getTitle(), Toast.LENGTH_SHORT).show();
return true;
}
@Override
public boolean onItemLongPress(int index, MarkerItem item) {
return false;
}
private class MapEventsReceiver extends Layer implements GestureListener {
MapEventsReceiver(Map map) {
super(map);
}
@Override
public boolean onGesture(Gesture g, MotionEvent e) {
if (g instanceof Gesture.LongPress) {
// POI search
new PoiSearchTask(PoiSearchActivity.this, POI_CATEGORY).execute(mMap.getBoundingBox(0));
return true;
}
return false;
}
}
private class PoiSearchTask extends AsyncTask<BoundingBox, Void, Collection<PointOfInterest>> {
private final WeakReference<PoiSearchActivity> weakActivity;
private final String category;
private PoiSearchTask(PoiSearchActivity activity, String category) {
this.weakActivity = new WeakReference<>(activity);
this.category = category;
}
@Override
protected Collection<PointOfInterest> doInBackground(BoundingBox... params) {
// Search POI
PoiPersistenceManager persistenceManager = null;
try {
persistenceManager = AndroidPoiPersistenceManagerFactory.getPoiPersistenceManager(POI_FILE);
PoiCategoryManager categoryManager = persistenceManager.getCategoryManager();
PoiCategoryFilter categoryFilter = new ExactMatchPoiCategoryFilter();
categoryFilter.addCategory(categoryManager.getPoiCategoryByTitle(this.category));
org.mapsforge.core.model.BoundingBox bb = new org.mapsforge.core.model.BoundingBox(
params[0].getMinLatitude(), params[0].getMinLongitude(),
params[0].getMaxLatitude(), params[0].getMaxLongitude());
return persistenceManager.findInRect(bb, categoryFilter, null, Integer.MAX_VALUE);
} catch (Throwable t) {
log.error(t.getMessage(), t);
} finally {
if (persistenceManager != null) {
persistenceManager.close();
}
}
return null;
}
@Override
protected void onPostExecute(Collection<PointOfInterest> pointOfInterests) {
PoiSearchActivity activity = weakActivity.get();
if (activity == null) {
return;
}
Toast.makeText(activity, category + ": " + (pointOfInterests != null ? pointOfInterests.size() : 0), Toast.LENGTH_SHORT).show();
if (pointOfInterests == null) {
return;
}
// Overlay POI
Bitmap bitmap = drawableToBitmap(getResources(), R.drawable.marker_poi);
MarkerSymbol symbol = new MarkerSymbol(bitmap, MarkerSymbol.HotspotPlace.CENTER);
ItemizedLayer<MarkerItem> markerLayer = new ItemizedLayer<>(mMap, new ArrayList<MarkerItem>(), symbol, PoiSearchActivity.this);
mMap.layers().add(markerLayer);
List<MarkerItem> pts = new ArrayList<>();
for (PointOfInterest pointOfInterest : pointOfInterests)
pts.add(new MarkerItem(pointOfInterest.getName(), "", new GeoPoint(pointOfInterest.getLatitude(), pointOfInterest.getLongitude())));
markerLayer.addItems(pts);
mMap.render();
}
}
}

1
vtm-android-example/src/org/oscim/android/test/Samples.java
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@ -92,6 +92,7 @@ public class Samples extends Activity {
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("https://github.com/graphhopper/graphhopper/tree/master/android")));
}
}));
linearLayout.addView(createButton(PoiSearchActivity.class));
linearLayout.addView(createLabel("Vector Features"));
linearLayout.addView(createButton(MapsforgeStyleActivity.class));