مشکل در باز کردن دیتابیس در برخی ورژنهای اندروید

 package com.sample.myapp;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import android.content.Context;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;


public class DataBaseOpen extends SQLiteOpenHelper {

    public final String   path = "/data/data/com.sample.myapp/databases/";
    public final String   Name = "picture16.db";
    public SQLiteDatabase mydb;
    private final Context mycontext;


    public DataBaseOpen(Context context) {
        super(context, "picture16.db", null, 1);
        mycontext = context;
    }


    @Override
    public void onCreate(SQLiteDatabase arg0) {

    }


    @Override
    public void onUpgrade(SQLiteDatabase arg0, int arg1, int arg2) {

    }


    public void useable() {
        boolean checkdb = checkdb();
        if (checkdb) {

        } else {
            this.getReadableDatabase();
            try {
                copydatabase();
            }
            catch (IOException e) {

            }
        }
    }


    public void open() {
        mydb = SQLiteDatabase.openDatabase(path + Name, null, SQLiteDatabase.OPEN_READWRITE);
    }


    @Override
    public void close() {
        mydb.close();
    }


    public boolean checkdb() {
        SQLiteDatabase db = null;
        try {
            db = SQLiteDatabase.openDatabase(path + Name, null, SQLiteDatabase.OPEN_READONLY);
        }
        catch (SQLException e) {

        }
        return db != null ? true : false;
    }


    public void copydatabase() throws IOException {

        OutputStream myOutput = new FileOutputStream(path + Name);
        byte[] buffer = new byte[1024];
        int lenght;
        InputStream myInput = mycontext.getAssets().open(Name);
        while ((lenght = myInput.read(buffer)) > 0) {
            myOutput.write(buffer, 0, lenght);
        }
        myInput.close();
        myOutput.flush();
        myOutput.close();
    }


   

    public String show(int row, int field, String table) {

        android.database.Cursor Cursor = mydb.rawQuery("SELECT * FROM " + table, null);
        Cursor.moveToPosition(row);
        String str = Cursor.getString(field);
        Cursor.close();
        return str;
    }


    public int chekFav(int row, int StarField, String table) {

        android.database.Cursor Cursor = mydb.rawQuery("SELECT * FROM " + table, null);
        Cursor.moveToPosition(row);
        int fav = Cursor.getInt(StarField);
        Cursor.close();
        return fav;
    }


    public int callGroup(int row, int Group, String table) {

        android.database.Cursor Cursor = mydb.rawQuery("SELECT * FROM " + table, null);
        Cursor.moveToPosition(row);
        int group = Cursor.getInt(Group);
        Cursor.close();
        return group;
    }


    public int findNumber(String word) {
        //Cursor cursor;
        android.database.Cursor cursor = mydb.rawQuery("select * from BookTable where Matn like '%" + word + "%'", null);
        int fildNumber = cursor.getCount();
        //cursor.close();
        return fildNumber;
    }


    public int search(int row, String word) {
        android.database.Cursor cursor = mydb.rawQuery("select * from BookTable where Matn like '%" + word + "%'", null);
        cursor.moveToPosition(row);
        int idOfserched = cursor.getInt(0);
        //cursor.close();
        return idOfserched;

    }


    public void StarOn(int icon) {
        mydb.execSQL("UPDATE BookTable SET star =1 WHERE id= " + icon);
    }


    public void StarOff(int icon) {
        mydb.execSQL("UPDATE BookTable SET star =0 WHERE id= " + icon);
    }
}