Question

I put my sqlite database file in the “assets” folder And i write a DAO calss to get data from database,But the information from log.e means i can not open the database.

public class GetData {

 private static String DB_PATH = "/data/data/com.SGMalls/databases/mallMapv2.sqlite";

private static SQLiteDatabase myDataBase;

public static ArrayList<Mall> getMall(){

   ArrayList<Mall> mallArrayList=new ArrayList<Mall>();

    String queryString="select id,title from malls order by title";

    myDataBase = SQLiteDatabase.openDatabase(DB_PATH,      null,SQLiteDatabase.OPEN_READONLY);

    Cursor cursor=myDataBase.rawQuery(queryString, null);

  if(cursor!=null){

    cursor.moveToFirst();

    while(!cursor.isLast()){

     Mall mall=new Mall();

     mall.setMallid(cursor.getInt(0));

     mall.setMallname(cursor.getString(1));            
    mallArrayList.add(mall);
cursor.moveToNext();
   } }
 myDataBase.close();

 return mallArrayList;

}}

Answer 1

The assets/ folder has nothing to do with databases, directly. If you put a database in the assets/ folder, you need to copy it from the assets/ folder to where you want the database to reside in the actual filesystem.