//The Android's default system path of your application database.
private static String DB_PATH = "/data/data/enkend.apps.proyects.optc.testapp/databases/";


private static String DB_NAME = "Test.db";

private SQLiteDatabase myDataBase;

private final Context myContext;

//private String DB_PATH;

/**
 * Constructor
 * Takes and keeps a reference of the passed context in order to access to the application assets and resources.
 * @param context
 */
public DataBaseHelper(Context context) {

    super(context, DB_NAME, null, 1);
    this.myContext = context;
}

/**
 * Creates a empty database on the system and rewrites it with your own database.
 * */
public void createDataBase() throws IOException {

    myContext.deleteDatabase(DB_NAME);
    boolean dbExist = checkDataBase();

    if(dbExist){
        //do nothing - database already exist
        copyDataBase();
    }else{

        //By calling this method and empty database will be created into the default system path
        //of your application so we are gonna be able to overwrite that database with our database.
        this.getReadableDatabase();

        try {

            copyDataBase();

        } catch (IOException e) {

            throw new Error("Error copying database");

        }
    }

}

/**
 * Check if the database already exist to avoid re-copying the file each time you open the application.
 * @return true if it exists, false if it doesn't
 */

private boolean checkDataBase(){

        File databasePath = myContext.getDatabasePath(DB_NAME);
        return databasePath.exists();
}

/**
 * Copies your database from your local assets-folder to the just created empty database in the
 * system folder, from where it can be accessed and handled.
 * This is done by transfering bytestream.
 * */
private void copyDataBase() throws IOException{

    //Open your local db as the input stream
    InputStream myInput = myContext.getAssets().open(DB_NAME);

    // Path to the just created empty db
    String outFileName = DB_PATH;

    //Open the empty db as the output stream
    OutputStream myOutput = new FileOutputStream(outFileName);

    //transfer bytes from the inputfile to the outputfile
    byte[] buffer = new byte[1024];
    int length;
    while ((length = myInput.read(buffer))>0){
        myOutput.write(buffer, 0, length);
    }

    //Close the streams
    myOutput.flush();
    myOutput.close();
    myInput.close();

}

public void openDataBase() throws SQLException {

    //Open the database
    String myPath = DB_PATH;
    myDataBase = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY);

}

@Override
public synchronized void close() {

    if(myDataBase != null)
        myDataBase.close();

    super.close();

}

@Override
public void onCreate(SQLiteDatabase db) {

}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

}


public EventType getEventType(String idEventType) {

    EventType fn = new EventType();
    SQLiteDatabase db = this.getReadableDatabase();
    //specify the columns to be fetched
    String[] columns = {"_id", "Name", "ImgURL", "Notes","Permanent"};
    //Select condition
    String selection = "_id  = ?";
    //Arguments for selection
    String[] selectionArgs = {idEventType};

    Cursor cursor = db.query("Fortnight", columns, selection,
            selectionArgs, null, null, null);
    if (null != cursor) {
        cursor.moveToFirst();
        fn.idEventType(cursor.getInt(0));
        fn.setName(cursor.getString(1));
        fn.setImgURL(cursor.getString(2));
        fn.setNotes(cursor.getString(3));
        fn.setPermanent(cursor.getInt(4));
    }
    db.close();
    return fn;
}

private void databaseConexion()
{
    dbHelper = new DataBaseHelper(this);
    try {

        dbHelper.createDataBase();

    } catch (IOException ioe) {

        throw new Error("Unable to create database");
    }

    try {

        dbHelper.openDataBase();

    }catch(SQLException sqle){
        throw sqle;

    }
}

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>