안드로이드의 구글맵을 이용한 지도화면에서 화면을 캡쳐하여 파일에 저장하는 예제
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
map_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/mainlayout"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<com.google.android.maps.MapView
android:id="@+id/mapview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:clickable="true"
android:apiKey="0lbzaFTEjuc25uPzbG67FsR1mDuQ7c2jSSj_Gzg"
/>
</RelativeLayout>
package test.android.hello;
import java.io.File;
import java.io.FileOutputStream;
import java.util.*;
import android.content.Context;
import android.graphics.*;
import android.graphics.Bitmap.CompressFormat;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.*;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.View.MeasureSpec;
import android.widget.Toast;
import com.google.android.maps.*;
public class GoogleMapActivity extends MapActivity implements LocationListener {
MapView mapView;
MapController mapController;
GeoPoint p;
LocationManager locationMgr;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.map_layout);
mapView = (MapView) findViewById(R.id.mapview);
mapView.displayZoomControls(true);
mapView.setBuiltInZoomControls(true);
mapController = mapView.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, this);
MapOverlay mapOverlay = new MapOverlay();
List<Overlay> listOfOverlays = mapView.getOverlays();
listOfOverlays.clear();
listOfOverlays.add(mapOverlay);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
menu.add(0,0,0,"지도 저장");
menu.add(0,1,0, "지도 첨부");
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch(item.getItemId()){
case 0: Log.i("메뉴선택", "지도 저장 선택");
saveScreen();
break;
case 1: Log.i("메뉴선택", "지도 첨부 선택");
break;
}
return true;
}
private void saveScreen() {
View v = findViewById(R.id.mainlayout);
v.setDrawingCacheEnabled(true);
// this is the important code :)
// Without it the view will have a dimension of 0,0 and the bitmap will be null
v.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),
MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
v.buildDrawingCache(true);
Bitmap bitmap = Bitmap.createBitmap(v.getDrawingCache());
v.setDrawingCacheEnabled(false); // clear drawing cache
v.destroyDrawingCache();
File file = new File( Environment.getExternalStorageDirectory() + "/capture.png");
try
{
file.createNewFile();
FileOutputStream ostream = new FileOutputStream(file);
bitmap.compress(CompressFormat.PNG, 100, ostream);
ostream.close();
Log.i("스크린캡쳐 결과", "스크린캡쳐, 파일저장 성공");
}
catch (Exception e)
{
e.printStackTrace();
}
}
@Override
protected boolean isRouteDisplayed() {
return true;
}
@Override
public void onLocationChanged(Location location) {
double lat = location.getLatitude();
double lon = location.getLongitude();
GeoPoint newPoint = new GeoPoint((int)(lat * 1E6), (int)(lon*1E6));
mapController.animateTo(newPoint);
p = newPoint;
}
@Override
public void onProviderDisabled(String provider) {}
@Override
public void onProviderEnabled(String provider) {}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {}
class MapOverlay extends com.google.android.maps.Overlay {
@Override
public boolean draw(Canvas canvas, MapView mapView,
boolean shadow, long when) {
super.draw(canvas, mapView, shadow);
//지리좌표를 화면픽셀좌표로 변환
Point screenPts = new Point();
if(p != null) mapView.getProjection().toPixels(p, screenPts);
//위에서 변환한 화면좌표에 화살표 이미지를 그려준다
Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.arrow);
Paint paint = new Paint();
paint.setAlpha(50);
canvas.drawBitmap(bmp, screenPts.x-bmp.getWidth()/2, screenPts.y, paint);
return true;
}
/*
ACTION_MOVE나 멀티터치의 경우에는 화면에 화살표를 그리지 않고 손가락으로 터치 후 업 동작을
할 경우에만 해당 위치에 화살표를 그려주기 위해 좌표를 p 변수에 할당한다
*/
boolean isTouched;
@Override
public boolean onTouchEvent(MotionEvent event, MapView mapView) {
if(event.getAction()== MotionEvent.ACTION_DOWN) {
isTouched = true;
}else if(event.getAction()== MotionEvent.ACTION_MOVE) {
isTouched = false;
}
if (event.getAction() == MotionEvent.ACTION_UP && isTouched) {
// 터치된 화면의 좌표를 지리좌표로 변환한다
GeoPoint touchGP = mapView.getProjection().fromPixels(
(int)event.getX(),
(int)event.getY());
//android.util.Log.e("터치 이벤트", "위도:"+touchGP.getLatitudeE6()+", 경도:"+touchGP.getLongitudeE6());
p = touchGP;
isTouched = false;
return false;
}
return false;
}
}
}