package com.tutsplus.mapsdemo.activity;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.TileOverlay;
import com.google.android.gms.maps.model.TileOverlayOptions;
import com.google.maps.android.heatmaps.HeatmapTileProvider;
import java.util.ArrayList;
import java.util.Random;
/**
* Created by Paul on 9/7/15.
*/
public class HeatMapActivity extends BaseMapActivity {
private HeatmapTileProvider mProvider;
@Override
protected void initMapSettings() {
ArrayList<LatLng> locations = generateLocations();
mProvider = new HeatmapTileProvider.Builder().data( locations ).build();
mProvider.setRadius( HeatmapTileProvider.DEFAULT_RADIUS );
mGoogleMap.addTileOverlay(new TileOverlayOptions().tileProvider(mProvider));
}
private ArrayList<LatLng> generateLocations() {
ArrayList<LatLng> locations = new ArrayList<LatLng>();
double lat;
double lng;
Random generator = new Random();
for( int i = 0; i < 1000; i++ ) {
lat = generator.nextDouble() / 3;
lng = generator.nextDouble() / 3;
if( generator.nextBoolean() ) {
lat = -lat;
}
if( generator.nextBoolean() ) {
lng = -lng;
}
locations.add(new LatLng(mCenterLocation.latitude + lat, mCenterLocation.longitude + lng));
}
return locations;
}
}