How can I get the external SD card path for Android 4 0

Question

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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that s not true   mnt sdcard external sd can exist even if the SD card is not mounted  your application will crash when you try to write to  mnt sdcard external sd when it s not mounted   you need to check if the SD card is mounted first using   boolean isSDPresent   Environment getExternalStorageState   equals Environment MEDIA MOUNTED

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In order to retrieve all the External Storages  whether they are SD cards or internal non-removable storages   you can use the following code   final String state   Environment getExternalStorageState     if   Environment MEDIA MOUNTED equals state     Environment MEDIA MOUNTED READ ONLY equals state          we can read the External Storage                     Retrieve the primary External Storage      final File primaryExternalStorage   Environment getExternalStorageDirectory           Retrieve the External Storages root directory      final String externalStorageRootDir      if    externalStorageRootDir   primaryExternalStorage getParent       null         no parent            Log d TAG   External Storage      primaryExternalStorage     n              else           final File externalStorageRoot   new File  externalStorageRootDir            final File   files   externalStorageRoot listFiles             for   final File file   files                 if   file isDirectory    amp  amp  file canRead    amp  amp   file listFiles   length  gt  0          it is a real directory  not a USB drive                     Log d TAG   External Storage      file getAbsolutePath       n                                      Alternatively  you might use System getenv  EXTERNAL STORAGE   to retrieve the primary External Storage directory  e g    storage sdcard0   and System getenv  SECONDARY STORAGE   to retieve the list of all the secondary directories  e g    storage extSdCard  storage UsbDriveA  storage UsbDriveB    Remember that  also in this case  you might want to filter the list of secondary directories in order to exclude the USB drives   In any case  please note that using hard-coded paths is always a bad approach  expecially when every manufacturer may change it as pleased

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String path   Environment getExternalStorageDirectory                             File separator   Environment DIRECTORY PICTURES                  File dir   new File path

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I was using Dmitriy Lozenko s solution until i checked on an Asus Zenfone2  Marshmallow 6 0 1 and the solution is not working  The solution failed when getting EMULATED STORAGE TARGET  specifically for microSD path  i e   storage F99C-10F4   I edited the code to get the emulated root paths directly from emulated application paths with context getExternalFilesDirs null   and add more known phone-model-specific physical paths   To make our life easier  I made a library here  You can use it via gradle  maven  sbt  and leiningen build system   If you like the old-fashioned way  you can also copy paste the file directly from here  but you will not know if there is an update in the future without checking it manually   If you have any question or suggestion  please let me know

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Here s how I get the list of SD-card paths  excluding the primary external storage               returns a list of all available sd cards paths  or null if not found              param includePrimaryExternalStorage set to true if you wish to also include the path of the primary external storage          TargetApi Build VERSION CODES HONEYCOMB    public static List lt String gt  getSdCardPaths final Context context final boolean includePrimaryExternalStorage            final File   externalCacheDirs ContextCompat getExternalCacheDirs context       if externalCacheDirs  null  externalCacheDirs length  0        return null      if externalCacheDirs length  1                if externalCacheDirs 0   null          return null        final String storageState EnvironmentCompat getStorageState externalCacheDirs 0          if  Environment MEDIA MOUNTED equals storageState           return null        if  includePrimaryExternalStorage amp  amp VERSION SDK INT gt  VERSION CODES HONEYCOMB amp  amp Environment isExternalStorageEmulated            return null              final List lt String gt  result new ArrayList lt  gt         if includePrimaryExternalStorage  externalCacheDirs length  1        result add getRootOfInnerSdCardFolder externalCacheDirs 0         for int i 1 i lt externalCacheDirs length   i                final File file externalCacheDirs i         if file  null          continue        final String storageState EnvironmentCompat getStorageState file         if Environment MEDIA MOUNTED equals storageState           result add getRootOfInnerSdCardFolder externalCacheDirs i                 if result isEmpty          return null      return result               Given any file folder inside an sd card  this will return the path of the sd card      private static String getRootOfInnerSdCardFolder File file            if file  null        return null      final long totalSpace file getTotalSpace        while true                final File parentFile file getParentFile          if parentFile  null  parentFile getTotalSpace    totalSpace   parentFile canRead            return file getAbsolutePath          file parentFile

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The following steps worked for me  You just need to write this lines   String sdf   new String Environment getExternalStorageDirectory   getName     String sddir   new String Environment getExternalStorageDirectory   getPath   replace sdf         The first line will give the name of sd directory  and you just need to use it in the replace method for the second string  The second string will contain the path for the internal and removable sd  storage  in my case   I just needed this path for my app but you can go further if you need it

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You can use something like - Context getExternalCacheDirs   or Context getExternalFilesDirs   or Context getObbDirs    They give application specific directories in all external storage devices where the application can store its files   So something like this -  Context getExternalCacheDirs   i  getParentFile   getParentFile   getParentFile   getParent   can get you the root path of external storage devices   I know these commands are for a different purpose but other answers didn t work for me   This link gave me good pointers - https   possiblemobile com 2014 03 android-external-storage

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This solution  assembled from other answers to this question  handles the fact  as mentioned by  ono  that System getenv  SECONDARY STORAGE   is of no use with Marshmallow   Tested and working on    Samsung Galaxy Tab 2  Android 4 1 1 - Stock  Samsung Galaxy Note 8 0  Android 4 2 2 - Stock  Samsung Galaxy S4  Android 4 4 - Stock  Samsung Galaxy S4  Android 5 1 1 - Cyanogenmod  Samsung Galaxy Tab A  Android 6 0 1 - Stock          Returns all available external SD-Card roots in the system         return paths to all available external SD-Card roots in the system      public static String   getStorageDirectories         String    storageDirectories      String rawSecondaryStoragesStr   System getenv  SECONDARY STORAGE         if  Build VERSION SDK INT  gt   Build VERSION CODES KITKAT            List lt String gt  results   new ArrayList lt String gt             File   externalDirs   applicationContext getExternalFilesDirs null           for  File file   externalDirs                String path   file getPath   split   Android   0               if  Build VERSION SDK INT  gt   Build VERSION CODES LOLLIPOP  amp  amp  Environment isExternalStorageRemovable file                          rawSecondaryStoragesStr    null  amp  amp  rawSecondaryStoragesStr contains path                    results add path                                   storageDirectories   results toArray new String 0         else          final Set lt String gt  rv   new HashSet lt String gt              if   TextUtils isEmpty rawSecondaryStoragesStr                 final String   rawSecondaryStorages   rawSecondaryStoragesStr split File pathSeparator               Collections addAll rv  rawSecondaryStorages                     storageDirectories   rv toArray new String rv size                return storageDirectories

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I found more reliable way to get paths to all SD-CARDs in system  This works on all Android versions and return paths to all storages  include emulated    Works correctly on all my devices   P S   Based on source code of Environment class   private static final Pattern DIR SEPORATOR   Pattern compile               Raturns all available SD-Cards in the system  include emulated        Warning  Hack  Based on Android source code of version 4 3  API 18     Because there is no standart way to get it     TODO  Test on future Android versions 4 4         return paths to all available SD-Cards in the system  include emulated      public static String   getStorageDirectories            Final set of paths     final Set lt String gt  rv   new HashSet lt String gt            Primary physical SD-CARD  not emulated      final String rawExternalStorage   System getenv  EXTERNAL STORAGE           All Secondary SD-CARDs  all exclude primary  separated by         final String rawSecondaryStoragesStr   System getenv  SECONDARY STORAGE           Primary emulated SD-CARD     final String rawEmulatedStorageTarget   System getenv  EMULATED STORAGE TARGET        if TextUtils isEmpty rawEmulatedStorageTarget                    Device has physical external storage  use plain paths          if TextUtils isEmpty rawExternalStorage                            EXTERNAL STORAGE undefined  falling back to default              rv add   storage sdcard0                      else                       rv add rawExternalStorage                       else                  Device has emulated storage  external storage paths should have            userId burned into them          final String rawUserId          if Build VERSION SDK INT  lt  Build VERSION CODES JELLY BEAN MR1                        rawUserId                         else                       final String path   Environment getExternalStorageDirectory   getAbsolutePath                final String   folders   DIR SEPORATOR split path               final String lastFolder   folders folders length - 1               boolean isDigit   false              try                               Integer valueOf lastFolder                   isDigit   true                            catch NumberFormatException ignored                                          rawUserId   isDigit   lastFolder                             storage emulated 0 1 2              if TextUtils isEmpty rawUserId                         rv add rawEmulatedStorageTarget                     else                       rv add rawEmulatedStorageTarget   File separator   rawUserId                          Add all secondary storages     if  TextUtils isEmpty rawSecondaryStoragesStr                    All Secondary SD-CARDs splited into array         final String   rawSecondaryStorages   rawSecondaryStoragesStr split File pathSeparator           Collections addAll rv  rawSecondaryStorages             return rv toArray new String rv size

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Yes  Different manufacturer use different SDcard name like in Samsung Tab 3 its extsd  and other samsung devices use sdcard like this different manufacturer use different names   I had the same requirement as you  so i have created a sample example for you from my project goto this link Android Directory chooser example which uses the androi-dirchooser library  This example detect the SDcard and list all the subfolders and it also detects if the device has morethan one SDcard   Part of the code looks like this For full example goto the link Android Directory Chooser        Returns the path to internal storage ex -  storage emulated 0       return     private String getInternalDirectoryPath     return Environment getExternalStorageDirectory   getAbsolutePath               Returns the SDcard storage path for samsung ex -  storage extSdCard        return         private String getSDcardDirectoryPath         return System getenv  SECONDARY STORAGE         mSdcardLayout setOnClickListener new OnClickListener          Override     public void onClick View view            String sdCardPath                          Null check because user may click on already selected buton before selecting the folder            And mSelectedDir may contain some wrong path like when user confirm dialog and swith back again                      if  mSelectedDir    null  amp  amp   mSelectedDir getAbsolutePath   contains System getenv  SECONDARY STORAGE                   mCurrentInternalPath   mSelectedDir getAbsolutePath              else               mCurrentInternalPath   getInternalDirectoryPath                      if  mCurrentSDcardPath    null                sdCardPath   mCurrentSDcardPath            else               sdCardPath   getSDcardDirectoryPath                        When there is only one SDcard         if  sdCardPath    null                if   sdCardPath contains                         updateButtonColor STORAGE EXTERNAL                   File dir   new File sdCardPath                   changeDirectory dir                 else if  sdCardPath contains                           Multiple Sdcards show root folder and remove the Internal storage from that                  updateButtonColor STORAGE EXTERNAL                   File dir   new File   storage                    changeDirectory dir                           else                 In some unknown scenario at least we can list the root folder             updateButtonColor STORAGE EXTERNAL               File dir   new File   storage                changeDirectory dir

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I have tried the solutions provided by Dmitriy Lozenko and Gnathonic on my Samsung Galaxy Tab S2  Model  T819Y  but none helped me retrieve path to an external SD Card directory  mount command execution contained the required path to external SD Card directory  i e   Storage A5F9-15F4  but it did not match the regular expression hence it was not returned  I don t get the directory naming mechanism followed by Samsung  Why they deviate from standards  i e  extsdcard  and come up with something really fishy like in my case  i e   Storage A5F9-15F4   Is there anything I am missing  Anyways  following changes in regular expression of Gnathonic s solution helped me get valid sdcard directory   final HashSet lt String gt  out   new HashSet lt String gt             String reg      i    vold media rw    sdcard 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    I am not sure if this is a valid solution and if it will give results for other Samsung tablets but it has fixed my problem for now  Following is another method to retrieve removable SD Card path in Android  v6 0   I have tested the method with android marshmallow and it works  Approach used in it is very basic and will surely work for other versions too but testing is mandatory  Some insight into it will be helpful   public static String getSDCardDirPathForAndroidMarshmallow          File rootDir   null       try              Getting external storage directory file         File innerDir   Environment getExternalStorageDirectory                Temporarily saving retrieved external storage directory as root            directory         rootDir   innerDir              Splitting path for external storage directory to get its root            directory          String externalStorageDirPath   innerDir getAbsolutePath             if  externalStorageDirPath    null                  amp  amp  externalStorageDirPath length    gt  1                  amp  amp  externalStorageDirPath startsWith                      externalStorageDirPath   externalStorageDirPath substring 1                      externalStorageDirPath length                        if  externalStorageDirPath    null                  amp  amp  externalStorageDirPath endsWith                      externalStorageDirPath   externalStorageDirPath substring 0                      externalStorageDirPath length   - 1                      String   pathElements   externalStorageDirPath split                for  int i   0  i  lt  pathElements length - 1  i                   rootDir   rootDir getParentFile                       File   files   rootDir listFiles             for  File file   files                if  file exists    amp  amp  file compareTo innerDir     0                        Try-catch is implemented to prevent from any IO exception                 try                        if  Environment isExternalStorageRemovable file                             return file getAbsolutePath                                             catch  Exception e                        e printStackTrace                                                     catch  Exception ex            ex printStackTrace              return null      Kindly share if you have any other approach to handle this issue  Thanks

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String secStore   System getenv  SECONDARY STORAGE     File externalsdpath   new File secStore     This will get the path of external sd secondary storage

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On some devices  for example samsung galaxy sII  internal memory card mabe be in vfat  In this case  use refer last code  we obtain path internal memory card   mnt sdcad  but no external card  Code refer below solve this problem   static String getExternalStorage             String exts    Environment getExternalStorageDirectory   getPath             try               FileReader fr   new FileReader new File   proc mounts                        BufferedReader br   new BufferedReader fr               String sdCard null              String line              while  line   br readLine     null                   if line contains  secure      line contains  asec    continue              if line contains  fat                     String   pars   line split    s                    if pars length lt 2  continue                  if pars 1  equals exts   continue                  sdCard  pars 1                    break                                  fr close            br close            return sdCard            catch  Exception e               TODO Auto-generated catch block         e printStackTrace              return null

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I am sure this code  will surely resolve your issues   This is working fine for me      try               File mountFile   new File   proc mounts                usbFoundCount 0              sdcardFoundCount 0              if mountFile exists                                   Scanner usbscanner   new Scanner mountFile                   while  usbscanner hasNext                          String line   usbscanner nextLine                        if  line startsWith   dev fuse  storage usbcard1                              usbFoundCount 1                          Log i  -----USB--------   USB Connected and properly mounted--- dev fuse  storage usbcard1                                                                if mountFile exists                     Scanner sdcardscanner   new Scanner mountFile                   while  sdcardscanner hasNext                          String line   sdcardscanner nextLine                        if  line startsWith   dev fuse  storage sdcard1                              sdcardFoundCount 1                          Log i  -----USB--------   USB Connected and properly mounted--- dev fuse  storage sdcard1                                                                if usbFoundCount  1                                Toast makeText context  USB Connected and properly mounted   7000  show                    Log i  -----USB--------   USB Connected and properly mounted                               else                               Toast makeText context  USB not found       7000  show                    Log i  -----USB--------   USB not found                                    if sdcardFoundCount  1                                Toast makeText context  SDCard Connected and properly mounted   7000  show                    Log i  -----SDCard--------   SDCard Connected and properly mounted                               else                               Toast makeText context  SDCard not found       7000  show                    Log i  -----SDCard--------   SDCard not found                                 catch  Exception e                e printStackTrace

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manifest file outside the application tag   please give permission write this     lt uses-permission android name  android permission READ EXTERNAL STORAGE   gt          File file   new File   mnt            String   fileNameList   file list      file names list inside the mnr folder         String all names         for the log information         String foundedFullNameOfExtCard          full name of ext card will come here         boolean isExtCardFounded   false          for  String name   fileNameList                if   isExtCardFounded                    isExtCardFounded   name contains  ext                    foundedFullNameOfExtCard   name                            all names    name     n      for log                   Log d  dialog   all names   foundedFullNameOfExtCard

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I did the following to get acces to all the external sd cards   With   File primaryExtSd Environment getExternalStorageDirectory      you get the path to the primary external SD Then with   File parentDir new File primaryExtSd getParent       you get the parent dir of the primary external storage  and it is also the parent of all the external sd   Now  you can list all the storage and select the one that you want   Hope it is usefull

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I guess to use the external sdcard you need to use this   new File   mnt external sd      OR   new File   mnt extSdCard      in your case     in replace of Environment getExternalStorageDirectory    Works for me  You should check whats in the directory mnt first and work from there      You should use some type of selection method to choose which sdcard to use   File storageDir   new File   mnt     if storageDir isDirectory         String   dirList   storageDir list          TODO some type of selecton method

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On Galaxy S3 Android 4 3 the path I use is   storage extSdCard Card  and it does the job  Hope it helps

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To access files in my SD card  on my HTC One X  Android   I use this path   file    storage sdcard0 folder filename jpg   Note the tripple

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I have a variation on a solution I found here  public static HashSet lt String gt  getExternalMounts         final HashSet lt String gt  out   new HashSet lt String gt         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   Huawei X3  stock  Galaxy S2  stock  Galaxy S3  stock    I m not certain which android version these were on when they were tested   I ve tested my modified version with   Moto Xoom 4 1 2  stock  Galaxy Nexus  cyanogenmod 10  using an otg cable HTC Incredible  cyanogenmod 7 2  this returned both the internal and external  This device is kinda an oddball in that its internal largely goes unused as getExternalStorage   returns a path to the sdcard instead    and some single storage devices that use an sdcard as their main storage   HTC G1  cyanogenmod 6 1  HTC G1  stock  HTC Vision G2  stock    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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Actually in some devices the external sdcard default name is showing as extSdCard and for other it is sdcard1   This code snippet helps to find out that exact path and helps to retrieve you the path of external device   String sdpath sd1path usbdiskpath sd0path              if new File   storage extSdCard    exists                                 sdpath   storage extSdCard                   Log i  Sd Cardext Path  sdpath                         if new File   storage sdcard1    exists                             sd1path   storage sdcard1                  Log i  Sd Card1 Path  sd1path                      if new File   storage usbcard1    exists                             usbdiskpath   storage usbcard1                  Log i  USB Path  usbdiskpath                      if new File   storage sdcard0    exists                             sd0path   storage sdcard0                  Log i  Sd Card0 Path  sd0path

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Good news   In KitKat there s now a public API for interacting with these secondary shared storage devices   The new Context getExternalFilesDirs   and Context getExternalCacheDirs   methods can return multiple paths  including both primary and secondary devices   You can then iterate over them and check Environment getStorageState   and File getFreeSpace   to determine the best place to store your files   These methods are also available on ContextCompat in the support-v4 library   Also note that if you re only interested in using the directories returned by Context  you no longer need the READ  or WRITE EXTERNAL STORAGE permissions   Going forward  you ll always have read write access to these directories with no additional permissions required   Apps can also continue working on older devices by end-of-lifing their permission request like this    lt uses-permission     android name  android permission WRITE EXTERNAL STORAGE      android maxSdkVersion  18    gt

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File   files   null      File file   new File   storage       storage emulated if  file exists              files   file listFiles                              if  null    files                  for  int j   0  j  lt  files length  j                          Log e TAG       files j                        Log e TAG     --  --                   files j  exists                          if  files j  toString   replaceAll                                       toLowerCase   contains  extsdcard                              external path   files j  toString                            break                        else if  files j  toString   replaceAll                                       toLowerCase                                contains  sdcard  concat Integer toString j                                  external path   files j  toString                                              Log e TAG   --   --   --      external path

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System getenv  SECONDARY STORAGE   returns null for Marshmallow  This is another way of finding all the externals dirs  You can check if it s removable which determines if internal external  if  Build VERSION SDK INT  gt   Build VERSION CODES M        File   externalCacheDirs   context getExternalCacheDirs        for  File file   externalCacheDirs            if  Environment isExternalStorageRemovable file                    It s a removable storage

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refer to my code  hope helpful for you       Runtime runtime   Runtime getRuntime        Process proc   runtime exec  mount        InputStream is   proc getInputStream        InputStreamReader isr   new InputStreamReader is       String line      String mount   new String        BufferedReader br   new BufferedReader isr       while   line   br readLine       null            if  line contains  secure    continue          if  line contains  asec    continue           if  line contains  fat       TF card             String columns     line split                   if  columns    null  amp  amp  columns length  gt  1                    mount   mount concat       columns 1      n                            else if  line contains  fuse       internal storage             String columns     line split                   if  columns    null  amp  amp  columns length  gt  1                    mount   mount concat columns 1      n                                      txtView setText mount

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Thanks for the clues provided by you guys  especially  SmartLemon  I got the solution  In case someone else need it  I put my final solution here  to find the first listed external SD card     public File getExternalSDCardDirectory         File innerDir   Environment getExternalStorageDirectory        File rootDir   innerDir getParentFile        File firstExtSdCard   innerDir       File   files   rootDir listFiles        for  File file   files            if  file compareTo innerDir     0                firstExtSdCard   file              break                        Log i  2   firstExtSdCard getAbsolutePath   toString         return firstExtSdCard      If no external SD card there  then it returns the on board storage  I will use it if the sdcard is not exist  you may need to change it

[android] How can I get the external SD card path for Android 4.0+?

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