Java ME引路蜂地图开发示例:本地查询 (一)

2014-11-24 08:22:13 · 作者: · 浏览: 0

本地查询可以查询指定区域内诸如宾馆,邮局等用户感兴趣的地方。其使用方法和地址查询非常类似。
下面示例查询32.0616667, 118.7777778为中心点一定区域内宾馆的信息。

[java]
//--------------------------------- PACKAGE ------------------------------------
package com.pstreets.gisengine.demo.midp;

//--------------------------------- IMPORTS ------------------------------------
import com.mapdigit.gis.MapPoint;
import com.mapdigit.gis.geometry.GeoLatLng;
import com.mapdigit.gis.raster.MapType;
import com.mapdigit.gis.service.IGeocodingListener;
import com.pstreets.gisengine.demo.MapDemoMIDP;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;

//[------------------------------ MAIN CLASS ----------------------------------]
//--------------------------------- REVISIONS ----------------------------------
// Date Name Tracking # Description
// -------- ------------------- ------------- --------------------------
// 28JAN2011 James Shen Initial Creation
////////////////////////////////////////////////////////////////////////////////
/**
* map pan demo for Guidebee Map API on MIDP platform.
*/
public class MapLocalSearchMIDP extends MapDemoMIDP implements CommandListener,
IGeocodingListener {

private Command mapFindAddressCommand = new Command("Find Address",
Command.OK, 1);

public void startApp() {

init();
canvas.addCommand(mapFindAddressCommand);
map.setGeocodingListener(this);
canvas.setCommandListener(this);
GeoLatLng center = new GeoLatLng(32.0616667, 118.7777778);
map.setCenter(center, 13, MapType.MICROSOFTCHINA);

Display.getDisplay(this).setCurrent(canvas);
}

public void commandAction(Command c, Displayable d) {
if (c == mapFindAddressCommand) {
String name = " ";
GeoLatLng screenCenter = map.getScreenCenter();
map.getLocations(name, 0, screenCenter,
map.getScreenBounds(screenCenter));
}
}

public void done(String query, MapPoint[] result) {
if (result != null) {
map.panTo(result[0].getPoint());
for (int i = 0; i < result.length; i++) {
System.out.println(result[i].objectNote);
}
}
}
}
//--------------------------------- PACKAGE ------------------------------------
package com.pstreets.gisengine.demo.midp;

//--------------------------------- IMPORTS ------------------------------------
import com.mapdigit.gis.MapPoint;
import com.mapdigit.gis.geometry.GeoLatLng;
import com.mapdigit.gis.raster.MapType;
import com.mapdigit.gis.service.IGeocodingListener;
import com.pstreets.gisengine.demo.MapDemoMIDP;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;

//[------------------------------ MAIN CLASS ----------------------------------]
//--------------------------------- REVISIONS ----------------------------------
// Date