Android 数据库与MapView总结

核心提示：}return super.onMenuItemSelected(featureId, item);}@Overrideprotected void onResume(){// TODO Auto-generated method stubsuper.onResume();}@Overrideprotected voi

}

return super.onMenuItemSelected(featureId, item);

}

@Override

protected void onResume()

{

// TODO Auto-generated method stub

super.onResume();

}

@Override

protected void onPause()

{

// TODO Auto-generated method stub

super.onPause();

}

@Override

protected void onDestroy()

{

// TODO Auto-generated method stub

if(dbHelper!=null &&

dbHelper.getReadableDatabase().isOpen())

{

dbHelper.close();

}

super.onDestroy();

}

}

4。在Map上画图

Java代码

package irdc.ex10_06;

import java.util.ArrayList;

import java.util.List;

import java.util.Locale;

import java.util.Random;

import android.database.Cursor;

import android.location.Address;

import android.location.Geocoder;

import android.os.Bundle;

import android.view.Menu;

import android.widget.TextView;

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 com.google.android.maps.Overlay;

public class EX10_06_04 extends MapActivity{

private TextView mTextView01;

/* 独一无二的menu选项identifier，用以识别事件 */

static final private int MENU_ADD = Menu.FIRST;

static final private int MENU_EDIT = Menu.FIRST+1;

static final private int MENU_DRAW = Menu.FIRST+2;

/* Google地图所需成员变量 */

private MapView mMapView01;

private int intZoomLevel=20;

/* 数据库所需成员变量 */