Class java.io.FileNotFoundException on reading a text file from android sdcard

Question

How to read a .txt file from sdcard.I tried the following method but it returns empty string saying file not found exception

public String ReadFile(){

        File sdcard = Environment.getExternalStorageDirectory();
        File file = new File(sdcard,"/folder/json.txt");
        StringBuilder text = new StringBuilder();
        try {
            BufferedReader br = new BufferedReader(new FileReader(file));
            String line;

            while ((line = br.readLine()) != null) {
                text.append(line);
                text.append('\n');
            }
            br.close();
        }
        catch (IOException e) {
            //You'll need to add proper error handling here
            Toast.makeText(this, "No data exist", Toast.LENGTH_SHORT).show();
        }

        String flag=text.toString();
        return flag;
    }

ERROR:/storage/emulated/0/folder/json.txt: open failed: ENOENT (No such file or directory)

If you are running in M or above, need to check permission allowed during runtime. Check this http://stackoverflow.com/questions/39011657/permission-denied-but-permission-is-set-in-manifest/39011907#39011907 — Sreehari, Aug 22 '16 at 11:22

score 0 · Answer 1 · answered Aug 22 '16 at 13:01

0

This is tips from me :

Make sure the file is really exist, show the print out file URI.
Make sure the read external permission is already added on Manifest file.
Run on the real device, not on Emulator.

answered Aug 22 '16 at 13:01

AFin

61
2

1.file exist in phone memory. 2.permission added: 3.tested on real devices – Muhammed Riyas A V Aug 22 '16 at 13:08
Is the file on SDCard or Internal phone storage ? AFAIK, your code are to access SDCard not internal phone storage. – AFin Aug 22 '16 at 13:17
please refer to this [link](http://www.mysamplecode.com/2012/06/android-internal-external-storage.html) for more details – AFin Aug 22 '16 at 13:22
the file is in external storage.i can see the file in file manager-> folder->json.txt file – Muhammed Riyas A V Aug 23 '16 at 06:08

Class java.io.FileNotFoundException on reading a text file from android sdcard

1 Answers1