Invalid path error: get the external memory size

Question

I am getting an error like below when I calling this to get External Memory Details.

05-07 16:55:07.710: E/AndroidRuntime(22624): FATAL EXCEPTION: main java.lang.IllegalArgumentException: Invalid path: /storage/emulated/0
05-07 16:55:07.710: E/AndroidRuntime(22624):    at android.os.StatFs.doStat(StatFs.java:46)
05-07 16:55:07.710: E/AndroidRuntime(22624):    at android.os.StatFs.<init>(StatFs.java:39)

It was works before i update my android to SAMSUNG Galaxy S3 4.3. I followed this post.This is my Code:

// getting available memory
public static String getAvailableExternalMemorySize() {
    if (externalMemoryAvailableBool()) {
        // File path =
        // Environment.getExternalStorageDirectory().getAbsolutePath();
        StatFs stat = new StatFs(Environment.getExternalStorageDirectory()
                .getAbsolutePath());
        long blockSize = stat.getBlockSize();
        long availableBlocks = stat.getAvailableBlocks();
        return formatSize(availableBlocks * blockSize);

    } else {
        return ERROR;
    }

}

// getting total memory
public static String getTotalExternalMemorySize() {

    if (externalMemoryAvailableBool()) {
        File path = Environment.getExternalStorageDirectory();
        StatFs stat = new StatFs(path.getPath());
        long blockSize = stat.getBlockSize();
        long totalBlocks = stat.getBlockCount();
        return formatSize(totalBlocks * blockSize);
    } else {
        return ERROR;
    }
}

I want to get Available & Total Memory of my External Memory Card.

There: >>> StatFs stat = new StatFs(Environment.getExternalStorageDirectory() .getAbsolutePath()); — Shihab Uddin, May 12 '14 at 06:01
On my Samsung Galaxy device that code works fine. Have You tried to use READ_EXTERNAL_STORAGE permission? — sandrstar, May 12 '14 at 07:07
@sandrstar I have the write permission but still had the crash. Any other things I'm missing. — Srikar Reddy, Apr 17 '18 at 06:08
@SrikarReddy have you requested the permission dynamically (https://developer.android.com/training/permissions/requesting.html#perm-request)? — sandrstar, Apr 17 '18 at 06:33
@sandrstar I'm doing that too but the crash happened on 5.1 (<6). — Srikar Reddy, Apr 17 '18 at 06:38

score 1 · Answer 1 · answered Jun 20 '14 at 07:03

This is to help those who are looking for the same crash signature. Since this question came up on top when googling for it and I didn't see any clear accepted answer.

The suggestion by @sandrstar is correct. My apps experienced the same crash and I've resolved it just by adding READ_EXTERNAL_STORAGE permission. Though it seems crashes for my case only occurred/reported on 4.4 device.

The reason behind is explained here: http://developer.android.com/reference/android/Manifest.permission.html#READ_EXTERNAL_STORAGE

Had the same problem. Adding the permission didn't help. The path to my SD card is /mnt/media_rw/extSdCard — Johann, Jun 12 '15 at 05:36

score 0 · Answer 2 · answered Oct 30 '20 at 20:55

Use this snipped to get size of internal storage and external Sdcard

private Long getDiskSpaceTotalInBytes() {
    StatFs stat = new StatFs(Environment.getDataDirectory().getPath());
    stat.restat(Environment.getDataDirectory().getPath());
    return stat.getBlockSizeLong() * stat.getBlockCountLong();
}

private Long getDiskSpaceAvailableInBytes() {
    StatFs stat = new StatFs(Environment.getDataDirectory().getPath());
    stat.restat(Environment.getDataDirectory().getPath());
    return stat.getBlockSizeLong() * stat.getAvailableBlocksLong();
}

private static boolean hasRealRemovableSdCard(Context context) {
    File[] dirs = context.getExternalFilesDirs("");
    if (dirs.length >= 2 && dirs[1] != null) {
        return Environment.isExternalStorageRemovable(dirs[1]);
    }
    return false;
}

private Long getSdCardSpaceAvailableInBytes(Context mContext) {
    if (!hasRealRemovableSdCard(mContext)) {
        return null;
    }
    File[] dirs = mContext.getExternalFilesDirs("");
    StatFs stat = new StatFs(dirs[1].getPath());
    long blockSize = stat.getBlockSizeLong();
    long totalBlocks = stat.getBlockCountLong();
    return totalBlocks * blockSize;
}

private Long getSdCardSpaceTotalInBytes(Context mContext) {
    if (!hasRealRemovableSdCard(mContext)) {
        return null;
    }
    File[] dirs = mContext.getExternalFilesDirs("");
    StatFs stat = new StatFs(dirs[1].getPath());
    long blockSize = stat.getBlockSizeLong();
    long availableBlocks = stat.getAvailableBlocksLong();
    return availableBlocks * blockSize;
}

Invalid path error: get the external memory size

2 Answers2