有离线地图，真的挺方便的。具体可以看看我的应用。
http://as.baidu.com/a/item?docid=4120392&pre=web_am_se
最近有网友不知道如何将离线的百度地图，打包在应用中发布。所以整理了这篇博客与大家分享。
1.使用离线地图。经过测试，首次必须在线验证百度的APIKey。
2.离线地图文件，放到res/raw目录下。参见下图。
3.编写代码拷贝函数。
package com.kkstudio.db;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import com.kkstudio.parkcar.R;import android.content.Context;import android.database.sqlite.SQLiteDatabase;import android.os.Environment;import android.util.Log;public class DBReleasFromAPK { /** Called when the activity is first created. */ private static String APK_PATHNAME = "parkcar"; // SD卡下的目录 private final String DATABASE_PATH = Environment.getExternalStorageDirectory().getPath() + "/" + APK_PATHNAME; private final String MAP_FILENAME = "beijing_131.dat"; private final String MAP_FILEPATH = Environment.getExternalStorageDirectory().getPath() + "/BaiduMapSdk/vmp/h/"; // 数据库名 private final String DATABASE_FILENAME = "data.db"; private final String IMAGE_FILENAME = "defaultimg.jpg"; private final String DEFAULT_IMAGE_FILENAME = "default.jpg"; private final String DEFAULT_IMAGE_06FILENAME = "06.jpg"; // 这个context是必需的，没有context，怎么都不能实现数据库的拷贝操作； private Context context; // 构造函数必需传入Context，数据库的操作都带有这个参数的传入 public DBReleasFromAPK(Context ctx) { this.context = ctx;// APK_PATHNAME = this.context.getString(R.string.app_name); } public SQLiteDatabase OpenDataBase() { try { String imageFilename = DATABASE_PATH + "/" + IMAGE_FILENAME; String defaultimageFilename = DATABASE_PATH + "/" + DEFAULT_IMAGE_FILENAME; String default06imageFilename = DATABASE_PATH + "/" + DEFAULT_IMAGE_06FILENAME; String mapFilename = MAP_FILEPATH + MAP_FILENAME; String databaseFilename = DATABASE_PATH + "/" + DATABASE_FILENAME; File dir = new File(DATABASE_PATH); // 判断SD卡下是否存在存放数据库的目录，如果不存在，新建目录 if (!dir.exists()) { dir.mkdir(); Log.i("ReleaseDataBaseActivity", "dir made:" + DATABASE_PATH); } else { Log.i("ReleaseDataBaseActivity", "dir exist:" + DATABASE_PATH); } try { // 如果数据库已经在SD卡的目录下存在，那么不需要重新创建，否则创建文件，并拷贝/res/raw下面的数据库文件 if (!(new File(databaseFilename)).exists()) { Log.i("ReleaseDataBaseActivity", "file not exist:" + databaseFilename); // /res/raw数据库作为输出流 InputStream is = this.context.getResources() .openRawResource(R.raw.data); // 测试用 int size = is.available(); Log.i("ReleaseDataBaseActivity", "DATABASE_SIZE:" + 1); Log.i("ReleaseDataBaseActivity", "count:" + 0); // 用于存放数据库信息的数据流 FileOutputStream fos = new FileOutputStream( databaseFilename); byte[] buffer = new byte[8192]; int count = 0; Log.i("ReleaseDataBaseActivity", "count:" + count); // 把数据写入SD卡目录下 while ((count = is.read(buffer)) > 0) { fos.write(buffer, 0, count); } fos.flush(); fos.close(); is.close(); } // patch image file if (!(new File(defaultimageFilename)).exists()) { // /res/raw数据库作为输出流 InputStream is = this.context.getResources() .openRawResource(R.raw.defaultimg); // 测试用 int size = is.available(); // 用于存放数据库信息的数据流 FileOutputStream fos = new FileOutputStream( defaultimageFilename); byte[] buffer = new byte[8192]; int count = 0; // 把数据写入SD卡目录下 while ((count = is.read(buffer)) > 0) { fos.write(buffer, 0, count); } fos.flush(); fos.close(); is.close(); } // patch 06.jpg if (!(new File(default06imageFilename)).exists()) { // /res/raw数据库作为输出流 InputStream is = this.context.getResources() .openRawResource(R.raw.defaultimg); // 测试用 int size = is.available(); // 用于存放数据库信息的数据流 FileOutputStream fos = new FileOutputStream( default06imageFilename); byte[] buffer = new byte[8192]; int count = 0; // 把数据写入SD卡目录下 while ((count = is.read(buffer)) > 0) { fos.write(buffer, 0, count); } fos.flush(); fos.close(); is.close(); } // patch download beijing map if (!(new File(mapFilename)).exists()) { // /res/raw数据库作为输出流 InputStream is = this.context.getResources() .openRawResource(R.raw.beijing_131); // 测试用 int size = is.available(); // 用于存放数据库信息的数据流 FileOutputStream fos = new FileOutputStream( mapFilename); byte[] buffer = new byte[8192]; int count = 0; // 把数据写入SD卡目录下 while ((count = is.read(buffer)) > 0) { fos.write(buffer, 0, count); } fos.flush(); fos.close(); is.close(); } } catch (FileNotFoundException e) { Log.e("Database", "File not found"); e.printStackTrace(); } catch (IOException e) { Log.e("Database", "IO exception"); e.printStackTrace(); } // 实例化sd卡上得数据库，database作为返回值，是后面所有插入，删除，查询操作的借口。 SQLiteDatabase database = SQLiteDatabase.openOrCreateDatabase( databaseFilename, null); return database; } catch (Exception e) { } return null; }}
4.启动类的onCreate中，调用即可。
DBReleasFromAPK dbapk = new DBReleasFromAPK(this); SQLiteDatabase dbsqlite = dbapk.OpenDataBase();
5.剩下的就是别忘记了。修改AndroidManifest.xml，添加存储功能。
6.祝你好运。