如何在android studio中导出和导入数据库sqlite？

Question

I am trying to implement an export and import in my android app, I have tried the below for export but it isn't working and doesn't give any errors. Could someone please help me out.

public static void export() throws IOException {
    //Open your local db as the input stream
    String inFileName = "/data/data/com.example.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();
}

and I call the method like so:

try {
    export();
}
catch (IOException e) {
    e.printStackTrace();
}

What am I doing wrong? and also once exported how can I import the data back?

Answer 1

I believe that what you require is answered here... it worked for me..

copy database file to sdcard in android

Note: This isn't intended to be a lazy answer, simply, I know this works so hopefully it will help the poster!