package com.he.hel;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
public class way_sam extends Activity{
 public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //setContentView(R.layout.way);
        Log.i("TAG", "ok");
        Intent intent = new Intent(getBaseContext(), GoogleMapSample.class);
        intent.putExtra("menu", 2);
     startActivity(intent);
 }
}

package com.he.hel;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Toast;
public class GoogleMapSample extends MapActivity {
    /** Called when the activity is first created. */
 
 /**
  * Request code defined for Another Activity
  */
 //public static final int REQUEST_CODE_ANOTHER = 1001;
 
 public int HpIndex;
 
 MapView map_view;
 MapController mapControl;
 
 GeoPoint point[] = new GeoPoint[9];
 
 
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.maphwa);
        
        Intent intent = getIntent();
        HpIndex = intent.getExtras().getInt("menu");
        
        point[0] = new GeoPoint((int)(37.3478338 * 1000000.0), (int)(127.1243797 * 1000000.0));
     point[1] = new GeoPoint((int)(37.4888793 * 1000000.0), (int)(127.0864968 * 1000000.0));
     point[2] = new GeoPoint((int)(36.3550408 * 1000000.0), (int)(127.3820047 * 1000000.0));
     point[3] = new GeoPoint((int)(37.5403974 * 1000000.0), (int)(127.0720953 * 1000000.0));
     point[4] = new GeoPoint((int)(37.5263521 * 1000000.0), (int)(127.1096752 * 1000000.0));
     point[5] = new GeoPoint((int)(36.3253046 * 1000000.0), (int)(127.4212387 * 1000000.0));
     point[6] = new GeoPoint((int)(35.09773 * 1000000.0), (int)(129.0241207 * 1000000.0));
     point[7] = new GeoPoint((int)(35.0582484 * 1000000.0), (int)(127.0026093 * 1000000.0));
     point[8] = new GeoPoint((int)(35.8693527 * 1000000.0), (int)(128.6061666 * 1000000.0));
     
        map_view = (MapView)findViewById(R.id.map_view);
        
        mapControl = map_view.getController();
        mapControl.setZoom(15);
        
        map_view.setBuiltInZoomControls(true);
        
        //point = new GeoPoint((int)(37.3478338 * 1000000.0), (int)(127.1243797 * 1000000.0));
        
        mapControl.animateTo(point[HpIndex]);
    }
    
    
    /*protected void onActivityResult(int requestCode, int resultCode, Intent data) {
  super.onActivityResult(requestCode, resultCode, data);
  
  if (requestCode == REQUEST_CODE_ANOTHER) {
   Toast toast = Toast.makeText(getBaseContext(), "onActivityResult called with code : " + resultCode, Toast.LENGTH_LONG);
   toast.show();
   
   if (resultCode == 1) {
    int index = data.getExtras().getInt("menu");
    HpIndex = index;
    toast = Toast.makeText(getBaseContext(), "result HpIndex : " + HpIndex, Toast.LENGTH_LONG);
    toast.show();
    
    
   }
   
  }
  
 }*/
 @Override
 protected boolean isRouteDisplayed() {
  // TODO Auto-generated method stub
  return false;
 }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
 <com.google.android.maps.MapView
  android:id="@+id/map_view"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:enabled="true"
  android:clickable="true"
  android:apiKey="0QRqN8u1C0aOd28e4tSdwnjFqWNA4Ly-C0H4cvQ"
 />
</LinearLayout>
 순서대로 클래스가 생성되면
인텐트로 맵 화면을 띄우는 창을 불러오고
맵을 보여주는 맵뷰 xml 입니다...

기존의 프로젝트에서는 되는데
타 프로젝트에 삽입하려고 옮겨오면 에러가 납니다;;
googleAPI도 같고 여러가지를 다 전 프로젝트와 똑같이 햇습니다...