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Samsung Galaxy S3 has an external SD card slot, which is mounted to /mnt/extSdCard.
How can I get this path by something like Environment.getExternalStorageDirectory()?
This will return mnt/sdcard, and I can't find the API for the external SD card. (Or removable USB storage on some tablets.)
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getExternalStorageDirectory() will return you the normal path for SD card which is mnt/sdcard/ . But for Samsung devices for example, the SD card path is either under mnt/extSdCard/ or under mnt/external_sd/ .
Environment. getExternalStorageDirectory() : return the primary external storage root directory. Context. getExternalFilesDir(String type) : return the absolute path of the directory on the primary external storage where the application can place its own files.
From this is easy to see that the way to get the SDCard path is to use a couple of environment variables: System.getenv(«EXTERNAL_STORAGE») —> Internal SDCard /STORAGE/SDCARD1. System.getenv(«EXTERNAL_SDCARD_STORAGE») —> True SDCard /STORAGE/SDCARD0.
However, when the device features both, an internal and external SDCard, the latter usually is to be found "inside" the former, e.g. at /sdcard/external_sd. Alternatively, it may be mounted at /mnt/extSdCard or /storage/extSdCard. Note the capitals. Android filenames are case-sensitive.
Let’s see what we can achieve with the environment variables! From this is easy to see that the way to get the SDCard path is to use a couple of environment variables: System.getenv (“EXTERNAL_STORAGE”) —> Internal SDCard /STORAGE/SDCARD1
When your user change their phone, plug the SD card to new phone, and on first phone it's /sdcard, on second phone it's /mnt/extSdCard, anything using file path is crashed. I need to generate real path from its relative path. I now this topic is old but this may help. you should use this method.
I have a variation on a solution I found here
public static HashSet<String> getExternalMounts() { final HashSet<String> out = new HashSet<String>(); String reg = "(?i).*vold.*(vfat|ntfs|exfat|fat32|ext3|ext4).*rw.*"; String s = ""; try { final Process process = new ProcessBuilder().command("mount") .redirectErrorStream(true).start(); process.waitFor(); final InputStream is = process.getInputStream(); final byte[] buffer = new byte[1024]; while (is.read(buffer) != -1) { s = s + new String(buffer); } is.close(); } catch (final Exception e) { e.printStackTrace(); } // parse output final String[] lines = s.split("\n"); for (String line : lines) { if (!line.toLowerCase(Locale.US).contains("asec")) { if (line.matches(reg)) { String[] parts = line.split(" "); for (String part : parts) { if (part.startsWith("/")) if (!part.toLowerCase(Locale.US).contains("vold")) out.add(part); } } } } return out; } The original method was tested and worked with
I'm not certain which android version these were on when they were tested.
I've tested my modified version with
and some single storage devices that use an sdcard as their main storage
Excepting the Incredible all these devices only returned their removable storage. There are probably some extra checks I should be doing, but this is at least a bit better than any solution I've found thus far.
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