LWUIT引路蜂地图开发示例：地址反编码
地址反编码是通过经纬度查询对应的地名，下面示例是查询经纬度为118.777802, 32.061699对应的地名，结果为”中国江苏省南京市鼓楼区渊声巷41号”。
[java]
package com.pstreets.gisengine.demo.lwuit;
//--------------------------------- IMPORTS ------------------------------------
import com.mapdigit.gis.MapPoint;
import com.mapdigit.gis.geometry.GeoLatLng;
import com.mapdigit.gis.raster.MapType;
import com.mapdigit.gis.service.IReverseGeocodingListener;
import com.pstreets.gisengine.demo.MapDemoLWUIT;
import com.sun.lwuit.Command;
import com.sun.lwuit.events.ActionEvent;
public class MapReverseGeocodingLWUIT extends MapDemoLWUIT
implements IReverseGeocodingListener{
private Command mapFindAddressCommand;
public void startApp() {
init();
canvas.setTitle("Map Reverse Geocoding");
mapFindAddressCommand=new Command("Find Address"){
public void actionPerformed(ActionEvent evt) {
map.getReverseLocations("32.061699,118.777802");
}
};
canvas.addCommand(mapFindAddressCommand);
GeoLatLng center = new GeoLatLng(32.0616667, 118.7777778);
map.setCenter(center, 13, MapType.MICROSOFTCHINA);
map.setReverseGeocodingListener(this);
canvas.show();
}
public void done(String arg0, MapPoint[] result) {
if (result != null) {
map.panTo(result[0].getPoint());
}
}
}
package com.pstreets.gisengine.demo.lwuit;
//--------------------------------- IMPORTS ------------------------------------
import com.mapdigit.gis.MapPoint;
import com.mapdigit.gis.geometry.GeoLatLng;
import com.mapdigit.gis.raster.MapType;
import com.mapdigit.gis.service.IReverseGeocodingListener;
import com.pstreets.gisengine.demo.MapDemoLWUIT;
import com.sun.lwuit.Command;
import com.sun.lwuit.events.ActionEvent; www.zzzyk.com
public class MapReverseGeocodingLWUIT extends MapDemoLWUIT
implements IReverseGeocodingListener{
private Command mapFindAddressCommand;
public void startApp() {
init();
canvas.setTitle("Map Reverse Geocoding");
mapFindAddressCommand=new Command("Find Address"){
public void actionPerformed(ActionEvent evt) {
map.getReverseLocations("32.061699,118.777802");
}
};
canvas.addCommand(mapFindAddressCommand);
GeoLatLng center = new GeoLatLng(32.0616667, 118.7777778);
map.setCenter(center, 13, MapType.MICROSOFTCHINA);
map.setReverseGeocodingListener(this);
canvas.show();
}
public void done(String arg0, MapPoint[] result) {
if (result != null) {
map.panTo(result[0].getPoint());
}
}
}
注意使用字符串经纬度格式时，纬度在前，经度在后，如果反了，则返回的地名或能为空或都跑到外国去了。结果也是一个数组，一般到第一个结果，后面结果是更大的区域或是距离相对较远的地名。
作者：mapdigit
补充：移动开发 , 其他 ,
