[Anroid] GPS정보 가져오기

* 현재 위치를 지도에 표시하기

1. 레이아웃 - my_map_view.xml 그대로 사용

2. 액티비티 - MyLocMap extends MapActivity implements LocationListener

:onCreate()에서 지도 초기화

1) 멤버변수 선언

LocationManager locationMgr = null;

MapController mapControl;

2) onCreate

setContentView(R.layout.my_map_view);

final MapView map = (MapView) findViewById(R.id.map);

mapControl = map.getController();

3. MyLocMap 액티비티가 실행되면 현재 위치 정보 가져오기

: onCreate()에서 현재 위치정보를 가져기 위한 requestLocationUpdates()함수 호출

locationMgr = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

Criteria criteria = new Criteria();

criteria.setAccuracy(Criteria.NO_REQUIREMENT);

criteria.setPowerRequirement(Criteria.NO_REQUIREMENT);

String best = locationMgr.getBestProvider(criteria, true);

locationMgr.requestLocationUpdates(best, 1000, 0, MyLocationView.this);

4. 현재위치 정보 표시하기

: onLocationChanged()에서 GeoPoint 설정

double lat = location.getLatitude();

double lon = location.getLongitude();

GeoPoint newPoint = new GeoPoint((int)(lat * 1E6), (int)(lon*1E6));

mapControl.animateTo(newPoint);

mapControl.setZoom(15);

// 마커표시

MapView.LayoutParams mapMarkerParams = new MapView.LayoutParams(

LayoutParams.WRAP_CONTENT,

LayoutParams.WRAP_CONTENT, newPoint,

MapView.LayoutParams.TOP_LEFT);

ImageView mapMarker = new ImageView(

getApplicationContext());

mapMarker.setImageResource(R.drawable.gmarker);

map.addView(mapMarker, mapMarkerParams);

///MyLocMap 액티비티 소스

package kcdi.map;

import android.content.Context;

import android.location.Criteria;

import android.location.Location;

import android.location.LocationListener;

import android.location.LocationManager;

import android.os.Bundle;

import android.view.ViewGroup.LayoutParams;

import android.widget.ImageView;

import com.google.android.maps.GeoPoint;

import com.google.android.maps.MapActivity;

import com.google.android.maps.MapController;

import com.google.android.maps.MapView;

public class MyLocMap extends MapActivity implements LocationListener {

MapController mapControl;

MapView map;

LocationManager locationMgr = null;

@Override

protected void onCreate(Bundle icicle) {

super.onCreate(icicle);

setContentView(R.layout.my_map_view);

map = (MapView) findViewById(R.id.map);

mapControl = map.getController();

locationMgr = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

Criteria criteria = new Criteria();

criteria.setAccuracy(Criteria.NO_REQUIREMENT);

criteria.setPowerRequirement(Criteria.NO_REQUIREMENT);

String best = locationMgr.getBestProvider(criteria, true);

locationMgr.requestLocationUpdates(best, 1000, 0, MyLocMap.this);

}

@Override

public void onLocationChanged(Location location) {

double lat = location.getLatitude();

double lon = location.getLongitude();

GeoPoint newPoint = new GeoPoint((int)(lat * 1E6), (int)(lon*1E6));

mapControl.animateTo(newPoint);

mapControl.setZoom(15);

MapView.LayoutParams mapMarkerParams = new MapView.LayoutParams(

LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, newPoint,

MapView.LayoutParams.TOP_LEFT);

ImageView mapMarker = new ImageView(getApplicationContext());

mapMarker.setImageResource(R.drawable.gmarker);

map.addView(mapMarker, mapMarkerParams);

}

@Override

protected boolean isRouteDisplayed() {

// TODO Auto-generated method stub

return false;

}

@Override

public void onProviderDisabled(String provider) {

// TODO Auto-generated method stub

}

@Override

public void onProviderEnabled(String provider) {

// TODO Auto-generated method stub

}

@Override

public void onStatusChanged(String provider, int status, Bundle extras) {

// TODO Auto-generated method stub

}

}