import/export to android sqlite database

Question

Ive seen a few posts on how to import and export a database in android and i found these code, but i cant seem to make it work. I get the error java.io.filenotfoundexception

Answer 1

Above accepted answer will not work for Android version on or above 6 because database path is different.

please check below code . It will work on all devices.

    public static boolean exportDB(Context context) {
    String DATABASE_NAME = "my.db";
    String databasePath = context.getDatabasePath(DATABASE_NAME).getPath();
    String inFileName = databasePath;
    try {
        File dbFile = new File(inFileName);
        FileInputStream fis = new FileInputStream(dbFile);

        String outFileName = Environment.getExternalStorageDirectory() + "/" + DATABASE_NAME;

        OutputStream output = new FileOutputStream(outFileName);

        byte[] buffer = new byte[1024];
        int length;
        while ((length = fis.read(buffer)) > 0) {
            output.write(buffer, 0, length);
        }
        //Close the streams
        output.flush();
        output.close();
        fis.close();
        return true;
    } catch (Exception e) {
        return false;
    }
}

Answer 2

SQlite database to our local file system-

Function declaration-

        try {
            backupDatabase();
        } catch (IOException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }

Function defined-

public static void backupDatabase() throws IOException {
        //Open your local db as the input stream
        String inFileName = "/data/data/com.myapp.main/databases/MYDB";
        File dbFile = new File(inFileName);
        FileInputStream fis = new FileInputStream(dbFile);

        String outFileName = Environment.getExternalStorageDirectory()+"/MYDB";
        //Open the empty db as the output stream
        OutputStream output = new FileOutputStream(outFileName);
        //transfer bytes from the inputfile to the outputfile
        byte[] buffer = new byte[1024];
        int length;
        while ((length = fis.read(buffer))>0){
            output.write(buffer, 0, length);
        }
        //Close the streams
        output.flush();
        output.close();
        fis.close();
    }