CODEWITHSUNDEEP
androidstorageandroid-sdcardandroid-external-storage
Farzad
Farzad

Reputation: 2090

android get all external storage path for all devices

getExternalStorageDirectory() return SD card path on my phone. (Huawei Y320 - android 4.2.2).

now, how to get path Phone Storage path for all devices and all API? loot at bottom screenshot.

enter image description here

Upvotes: 4

Views: 9649

Answers (5)

DiLDoST
DiLDoST

Reputation: 372

This function ensures to get all canonical readable storage paths on each android version (hopefully).

private static ArrayList<String> getAllStorages(Context context)
{
    ArrayList<String> storagePaths = new ArrayList<>();

    storagePaths.add(Environment.getExternalStorageDirectory().getAbsolutePath());

    try
    {
        File[] externalDirs = context.getExternalFilesDirs(null);
        if (externalDirs != null)
            for (File file : externalDirs)
            {
                storagePaths.add(file.getAbsolutePath());
            }
    }
    catch (Throwable e)
    {
        // ignore
    }

    String externalStorage = System.getenv("SECONDARY_STORAGE");
    if (externalStorage != null && !externalStorage.isEmpty())
    {
        String[] externalPaths = externalStorage.split(":");
        for (String e:externalPaths)
        {
            storagePaths.add(e);
        }
    }
    externalStorage = System.getenv("EXTERNAL_STORAGE");
    if (externalStorage != null && !externalStorage.isEmpty())
    {
        String[] externalPaths = externalStorage.split(":");
        for (String e:externalPaths)
        {
            storagePaths.add(e);
        }
    }

    ArrayList<String> result=new ArrayList<>();
    for (String s:storagePaths)
    {
        File f=new File(s);
        File f2=f;
        while (f2 != null)
        {
            if (f2.canRead())
            {
                f = f2;
            }
            f2 = f2.getParentFile();
        }
        try
        {
            f = f.getCanonicalFile();
        }
        catch (IOException e)
        {
            // ignore
        }
        s = f.getPath();
        if (!result.contains(s))
        {
            result.add(s);
        }
    }
    return result;
}

Tested on Android 11.

You can test it on each Android and give feedback in comments, so we can make it more compatible if isn't.

Upvotes: 1

user924
user924

Reputation: 12145

Android 21+:

val publicStorages = ContextCompat.getExternalFilesDirs(this, null).mapNotNull {
    it?.parentFile?.parentFile?.parentFile?.parentFile
}

// paths:
// /storage/emulated/0 
// /storage/12F7-270F

Android 29+:

val volumeNames = MediaStore.getExternalVolumeNames(context).toTypedArray()

val phoneSdCard: String = volumeNames[0]
// external_primary == /storage/emulated/0

val removableMicroSdCard: String = volumeNames[1]
// 12f7-270f == /storage/12F7-270F

more about 29+: MediaStore alternative for deprecated Context.externalMediaDirs?

Upvotes: 2

milan pithadia
milan pithadia

Reputation: 870

try this code to get all external storage path for all devices

File[] f = ContextCompat.getExternalFilesDirs(getApplicationContext(),null);
for (int i=0;i< f.length;i++)
{
  String path = f[i].getParent().replace("/Android/data/","").replace(getPackageName(),"");
  Log.d("DIRS",path); //sdcard and internal and usb
}

Upvotes: 2

O_o
O_o

Reputation: 1103

External directory can better be thought as media/shared storage. It is a filesystem that can hold a relatively large amount of data and that is shared across all applications (does not enforce permissions). Traditionally this is an SD card, but it may also be implemented as built-in storage in a device that is distinct from the protected internal storage and can be mounted as a filesystem on a computer.

if you User data directory...

Environment.getDataDirectory()

Recommended reading : Android External Storage

Cheers!

Upvotes: 1

Fedor Kazakov
Fedor Kazakov

Reputation: 601

I'm using this method:

    public static final String SD_CARD = "sdCard";
    public static final String EXTERNAL_SD_CARD = "externalSdCard";
    private static final String ENV_SECONDARY_STORAGE = "SECONDARY_STORAGE";

    public static Map<String, File> getAllStorageLocations() {
        Map<String, File> storageLocations = new HashMap<>(10);
        File sdCard = Environment.getExternalStorageDirectory();
        storageLocations.put(SD_CARD, sdCard);
        final String rawSecondaryStorage = System.getenv(ENV_SECONDARY_STORAGE);
        if (!TextUtils.isEmpty(rawSecondaryStorage)) {
            String[] externalCards = rawSecondaryStorage.split(":");
            for (int i = 0; i < externalCards.length; i++) {
                String path = externalCards[i];
                storageLocations.put(EXTERNAL_SD_CARD + String.format(i == 0 ? "" : "_%d", i), new File(path));
            }
        }
        return storageLocations;
    }

Upvotes: 0

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