Android Open External Storage directory sdcard for storing file

Question

I want to open external storage directory path for saving file programatically I tried but not getting sdcard path  How can i do this is there any solution for this    private File path   new File Environment getExternalStoragePublicDirectory Environment DIRECTORY PICTURES           or  private File path   new File Environment getExternalStorageDirectory            I tried getting path from above both methods but both are pointing internal memory   When we open storage memory if sdcard is peresent it will shows like below-   device storage  amp  sd memory card   I want to get sd memory path through coding  I have given permissions in manifest-       lt uses-permission android name  android permission WRITE EXTERNAL STORAGE    gt       lt uses-permission android name  android permission STORAGE    gt       lt uses-permission android name  android permission READ EXTERNAL STORAGE    gt

User · Answer

taking  rijul s answer forward  it doesn t work in marshmallow and above versions            for pre-marshmallow versions        String path   System getenv  SECONDARY STORAGE               For Marshmallow  use getExternalCacheDirs   instead of System getenv  SECONDARY STORAGE          if  Build VERSION SDK INT  gt   Build VERSION CODES M               File   externalCacheDirs   mContext getExternalCacheDirs               for  File file   externalCacheDirs                   if  Environment isExternalStorageRemovable file                           Path is in format  storage    Android                           Get everything before  Android                    path   file getPath   split   Android   0                      break                                                      Android avd emulator doesn t support this variable name so using other one         if   null    path      path length      0               path   Environment getExternalStorageDirectory   getAbsolutePath

User · Answer

hope it s worked for you   File yourFile   new File Environment getExternalStorageDirectory     textarabics txt      This will give u sdcard path   File path   Environment getExternalStorageDirectory      Try this   String pathName     mnt      or try this   String pathName     storage

User · Answer

Try using   new File Environment getExternalStorageDirectory    somefilename     And don t forget to add WRITE EXTERNAL STORAGE and READ EXTERNAL STORAGE permissions

User · Answer

Complementing rijul gupta answer   String strSDCardPath   System getenv  SECONDARY STORAGE         if   strSDCardPath    null      strSDCardPath length      0             strSDCardPath   System getenv  EXTERNAL SDCARD STORAGE                 If may get a full path that is not the right one  even if we don t have the SD Card there         We just need the   mnt extSdCard   i e and check if it s writable     if strSDCardPath    null            if  strSDCardPath contains                     strSDCardPath   strSDCardPath substring 0  strSDCardPath indexOf                          File externalFilePath   new File strSDCardPath            if  externalFilePath exists    amp  amp  externalFilePath canWrite                   do what you need here

User · Answer

I had been having the exact same problem   To get the internal SD card you can use  String extStore   System getenv  EXTERNAL STORAGE    File f exts   new File extStore     To get the external SD card you can use  String secStore   System getenv  SECONDARY STORAGE    File f secs   new File secStore     On running the code   extStore     storage emulated legacy   secStore     storage extSdCarcd    works perfectly

User · Answer

yes  it may work in KITKAT   above KITKAT  it will go to internal storage paths like storage emulated 0    please think  how  Xender app  give permission to write in to external sd card   So  Fortunately in Android 5 0 and later there is a new official way for apps to write to the external SD card  Apps must ask the user to grant write access to a folder on the SD card  They open a system folder chooser dialog  The user need to navigate into that specific folder and select it   for more details  please refer https   metactrl com docs sdcard-on-lollipop

User · Answer

I want to open external storage directory path for saving file   programatically I tried but not getting sdcard path  How can i do   this is there any solution for this     To store your app files in SD card  you should use File   getExternalFilesDirs  String type  method in Context class  Generally  second returned path would be the storage path for microSD card  if any    On my phone  second path returned was  storage sdcard1 Android data your application package appname files after passing null as argument to getExternalFilesDirs  String type   But path may vary on different phones  different Android versions   Both File getExternalStorageDirectory    and File getExternalStoragePublicDirectory  String type  in Environment class may return SD card directory or internal memory directory depending on your phone s model and Android OS version    Because According to Official Android Guide external storage can be     removable storage media  such as an SD card  or an internal    non-removable  storage    The Internal and External Storage terminology according to Google official Android docs is quite different from what we think

User · Answer

The internal storage is referred to as  external storage  in the API   As mentioned in the Environment documentation     Note  don t be confused by the word  external  here  This 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    To distinguish whether  Environment getExternalStorageDirectory    actually returned physically internal or external storage  call Environment isExternalStorageEmulated    If it s emulated  than it s internal  On newer devices that have internal storage and sdcard slot Environment getExternalStorageDirectory   will always return the internal storage  While on older devices that have only sdcard as a media storage option it will always return the sdcard   There is no way to retrieve all storages using current Android API   I ve created a helper based on Vitaliy Polchuk s method in the answer below  How can I get the list of mounted external storage of android device  NOTE  starting KitKat secondary storage is accessible only as READ-ONLY  you may want to check for writability using the following method         Checks whether the StorageVolume is read-only         param volume               StorageVolume to check     return true  if volume is mounted read-only     public static boolean isReadOnly  NonNull final StorageVolume volume        if  volume mFile equals Environment getExternalStorageDirectory                  is a primary storage  check mounted state by Environment         return android os Environment getExternalStorageState   equals                  android os Environment MEDIA MOUNTED READ ONLY         else           if  volume getType      Type USB                return volume isReadOnly                        is not a USB storagem so it s read-only if it s mounted read-only or if it s a KitKat device         return volume isReadOnly      Build VERSION SDK INT  gt   Build VERSION CODES KITKAT            StorageHelper class  import java io BufferedReader  import java io File  import java io FileNotFoundException  import java io FileReader  import java io IOException  import java util ArrayList  import java util HashMap  import java util List  import java util Map  import java util Map Entry  import java util StringTokenizer   import android os Environment   public final class StorageHelper          private static final String TAG    StorageHelper        private StorageHelper                private static final String STORAGES ROOT       static           final String primaryStoragePath   Environment getExternalStorageDirectory                    getAbsolutePath            final int index   primaryStoragePath indexOf File separatorChar  1           if  index    -1                STORAGES ROOT   primaryStoragePath substring 0  index   1             else               STORAGES ROOT   File separator                       private static final String   AVOIDED DEVICES   new String              rootfs    tmpfs    dvpts    proc    sysfs    none              private static final String   AVOIDED DIRECTORIES   new String              obb    asec              private static final String   DISALLOWED FILESYSTEMS   new String              tmpfs    rootfs    romfs    devpts    sysfs    proc    cgroup    debugfs                         Returns a list of mounted   link StorageVolume s Returned list always        includes a   link StorageVolume  for          link Environment getExternalStorageDirectory                    param includeUsb                   if true  will include USB storages         return list of mounted   link StorageVolume s             public static List lt StorageVolume gt  getStorages final boolean includeUsb            final Map lt String  List lt StorageVolume gt  gt  deviceVolumeMap   new HashMap lt String  List lt StorageVolume gt  gt                 this approach considers that all storages are mounted in the same non-root directory         if   STORAGES ROOT equals File separator                 BufferedReader reader   null              try                   reader   new BufferedReader new FileReader   proc mounts                     String line                  while   line   reader readLine       null                           Log d TAG  line                       final StringTokenizer tokens   new StringTokenizer line                             final String device   tokens nextToken                           skipped devices that are not sdcard for sure                     if  arrayContains AVOIDED DEVICES  device                             continue                                                should be mounted in the same directory to which                        the primary external storage was mounted                     final String path   tokens nextToken                        if   path startsWith STORAGES ROOT                             continue                                                skip directories that indicate tha volume is not a storage volume                     if  pathContainsDir path  AVOIDED DIRECTORIES                             continue                                             final String fileSystem   tokens nextToken                           don t add ones with non-supported filesystems                     if  arrayContains DISALLOWED FILESYSTEMS  fileSystem                             continue                                             final File file   new File path                          skip volumes that are not accessible                     if   file canRead       file canExecute                              continue                                             List lt StorageVolume gt  volumes   deviceVolumeMap get device                       if  volumes    null                            volumes   new ArrayList lt StorageVolume gt  3                           deviceVolumeMap put device  volumes                                              final StorageVolume volume   new StorageVolume device  file  fileSystem                       final StringTokenizer flags   new StringTokenizer tokens nextToken                              while  flags hasMoreTokens                              final String token   flags nextToken                            if  token equals  rw                                  volume mReadOnly   false                              break                            else if  token equals  ro                                  volume mReadOnly   true                              break                                                                      volumes add volume                                    catch  IOException ex                    ex printStackTrace                  finally                   if  reader    null                        try                           reader close                          catch  IOException ex                               ignored                                                                             remove volumes that are the same devices         boolean primaryStorageIncluded   false          final File externalStorage   Environment getExternalStorageDirectory            final List lt StorageVolume gt  volumeList   new ArrayList lt StorageVolume gt             for  final Entry lt String  List lt StorageVolume gt  gt  entry   deviceVolumeMap entrySet                  final List lt StorageVolume gt  volumes   entry getValue                if  volumes size      1                       go ahead and add                 final StorageVolume v   volumes get 0                   final boolean isPrimaryStorage   v file equals externalStorage                   primaryStorageIncluded    isPrimaryStorage                  setTypeAndAdd volumeList  v  includeUsb  isPrimaryStorage                   continue                            final int volumesLength   volumes size                for  int i   0  i  lt  volumesLength  i                      final StorageVolume v   volumes get i                   if  v file equals externalStorage                         primaryStorageIncluded   true                         add as external storage and continue                     setTypeAndAdd volumeList  v  includeUsb  true                       break                                       if that was the last one and it s not the default external                    storage then add it as is                 if  i    volumesLength - 1                        setTypeAndAdd volumeList  v  includeUsb  false                                                        add primary storage if it was not found         if   primaryStorageIncluded                final StorageVolume defaultExternalStorage   new StorageVolume     externalStorage   UNKNOWN                defaultExternalStorage mEmulated   Environment isExternalStorageEmulated                defaultExternalStorage mType                       defaultExternalStorage mEmulated   StorageVolume Type INTERNAL                               StorageVolume Type EXTERNAL              defaultExternalStorage mRemovable   Environment isExternalStorageRemovable                defaultExternalStorage mReadOnly                       Environment getExternalStorageState   equals Environment MEDIA MOUNTED READ ONLY               volumeList add 0  defaultExternalStorage                     return volumeList                        Sets   link StorageVolume Type   removable and emulated flags and adds to        volumeList                 param volumeList                   List to add volume to         param v                   volume to add to list         param includeUsb                   if false  volume with type   link StorageVolume Type USB  will                   not be added         param asFirstItem                   if true  adds the volume at the beginning of the volumeList             private static void setTypeAndAdd final List lt StorageVolume gt  volumeList              final StorageVolume v              final boolean includeUsb              final boolean asFirstItem            final StorageVolume Type type   resolveType v           if  includeUsb    type    StorageVolume Type USB                v mType   type              if  v file equals Environment getExternalStorageDirectory                       v mRemovable   Environment isExternalStorageRemovable                  else                   v mRemovable   type    StorageVolume Type INTERNAL                            v mEmulated   type    StorageVolume Type INTERNAL              if  asFirstItem                    volumeList add 0  v                 else                   volumeList add v                                                 Resolved   link StorageVolume  type                 param v                     link StorageVolume  to resolve type for         return   link StorageVolume  type             private static StorageVolume Type resolveType final StorageVolume v            if  v file equals Environment getExternalStorageDirectory                     amp  amp  Environment isExternalStorageEmulated                  return StorageVolume Type INTERNAL            else if  containsIgnoreCase v file getAbsolutePath     usb                  return StorageVolume Type USB            else               return StorageVolume Type EXTERNAL                                  Checks whether the array contains object                 param array                   Array to check         param object                   Object to find         return true  if the given array contains the object             private static  lt T gt  boolean arrayContains T   array  T object            for  final T item   array                if  item equals object                     return true                                  return false                        Checks whether the path contains one of the directories                For example  if path is  one two  it returns true input is  one  or         two   Will return false if the input is one of  one two     one  or          two                  param path                   path to check for a directory         param dirs                   directories to find         return true  if the path contains one of the directories             private static boolean pathContainsDir final String path  final String   dirs            final StringTokenizer tokens   new StringTokenizer path  File separator           while  tokens hasMoreElements                  final String next   tokens nextToken                for  final String dir   dirs                    if  next equals dir                         return true                                                    return false                        Checks ifString contains a search String irrespective of case  handling         Case-insensitivity is defined as by          link String equalsIgnoreCase String                    param str                   the String to check  may be null         param searchStr                   the String to find  may be null         return true if the String contains the search String irrespective of                case or false if not or   code null  string input             public static boolean containsIgnoreCase final String str  final String searchStr            if  str    null    searchStr    null                return false                    final int len   searchStr length            final int max   str length   - len          for  int i   0  i  lt   max  i                  if  str regionMatches true  i  searchStr  0  len                     return true                                  return false                        Represents storage volume information             public static final class StorageVolume                           Represents   link StorageVolume  type                     public enum Type                                  Device built-in internal storage  Probably points to                  link Environment getExternalStorageDirectory                                INTERNAL                                  External storage  Probably removable  if no other                  link StorageVolume  of type   link  INTERNAL  is returned by                  link StorageHelper getStorages boolean    this might be                pointing to   link Environment getExternalStorageDirectory                                EXTERNAL                                  Removable usb storage                             USB                                   Device name                     public final String device                          Points to mount point of this device                     public final File file                          File system of this device                     public final String fileSystem                          if true  the storage is mounted as read-only                     private boolean mReadOnly                          If true  the storage is removable                     private boolean mRemovable                          If true  the storage is emulated                     private boolean mEmulated                          Type of this storage                     private Type mType           StorageVolume String device  File file  String fileSystem                this device   device              this file   file              this fileSystem   fileSystem                                    Returns type of this storage                         return Type of this storage                     public Type getType                 return mType                                    Returns true if this storage is removable                         return true if this storage is removable                     public boolean isRemovable                 return mRemovable                                    Returns true if this storage is emulated                         return true if this storage is emulated                     public boolean isEmulated                 return mEmulated                                    Returns true if this storage is mounted as read-only                         return true if this storage is mounted as read-only                     public boolean isReadOnly                 return mReadOnly                      Override         public int hashCode                 final int prime   31              int result   1              result   prime   result     file    null    0   file hashCode                 return result                                    Returns true if the other object is StorageHelper and it s              link  file  matches this one s                         see Object equals Object                       Override         public boolean equals Object obj                if  obj    this                    return true                            if  obj    null                    return false                            if  getClass      obj getClass                      return false                            final StorageVolume other    StorageVolume  obj              if  file    null                    return other file    null                            return file equals other file                       Override         public String toString                 return file getAbsolutePath      mReadOnly     ro       rw      mType    mRemovable     R                                mEmulated     E           fileSystem

[android] Android Open External Storage directory(sdcard) for storing file

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