Cannot write to a file on Android device

Question

I am trying to use CSVWriter to write to a file for my android project.

As part of my folder structure I have created a folder called myData and within that have a CSV file called results.csv

String csvpath = Environment.getExternalStorageDirectory().getAbsolutePath();
CSVWriter csvw = new CSVWriter(new FileWriter(csvpath+"/myData/results.csv"));

However I get the following exception

java.io.FileNotFoundException: /storage/emulated/0/myData/results.csv: open failed: ENOENT (No such file or directory)

I have also added:

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

How can I get the correct path for this file?

The READ permission is optional - WRITE includes it already. — Phantômaxx
– Phantômaxx, Commented Nov 29, 2014 at 16:46

Rathan Kumar · Accepted Answer · 2014-11-29 16:24:52Z

1

The issue is you have to create the myData Folder Otherwise it will throws the exception.

    File dir=new File( Environment.getExternalStorageDirectory(), "MyDate");
    if(!dir.exists()){
        dir.mkdir();
    }
    CSVWriter csvw = new CSVWriter(new FileWriter(dir.getAbsolutePath()+"/results.csv"));

In Manifest:

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

answered Nov 29, 2014 at 16:24

Rathan Kumar

2,5772 gold badges19 silver badges24 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

at010 Over a year ago

Just tried it, it is now working. Thank you for this!

Collectives™ on Stack Overflow

Cannot write to a file on Android device

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related