How could i get the correct external storage on Samsung and all other devices?

Question

The official method Environment.getExternalStorageDirectory() seems to be not working on Samsung devices...

It return "/sdcard/" but not the real path "/sdcard/external_sd/", you could refer to the following post

Android SD Card Characteristics on Samsung Galaxy

Is there another methods to detect the external real storage path and suitable for all devices ?? or just teach me how to avoid this issue ??

Thanks.

Answer 1

I hope the code below is helpful. That code finds the path of removable external storage (i.e. SD card).

        File file = new File("/system/etc/vold.fstab");
        FileReader fr = null;
        BufferedReader br = null;

        try {
            fr = new FileReader(file);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } 

        try {
            if (fr != null) {
                br = new BufferedReader(fr);
                String s = br.readLine();
                while (s != null) {
                    if (s.startsWith("dev_mount")) {
                        String[] tokens = s.split("\\s");
                        path = tokens[2]; //mount_point
                        if (!Environment.getExternalStorageDirectory().getAbsolutePath().equals(path)) {
                            break;
                        }
                    }
                    s = br.readLine();
                }
            }            
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (fr != null) {
                    fr.close();
                }            
                if (br != null) {
                    br.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }