How can I get the UUID of my Android phone in an application

Question

I m looking for help to get the UUID of my Android phone  I have searched the net and found one potential solution but it is not working in the emulator   Here is the code   Class lt   gt  c  try       c   Class forName  android os SystemProperties        Method get   c getMethod  get   String class       serial    String  get invoke c   ro serialno        Log d  ANDROID UUID  serial     catch  Exception e        e printStackTrace        Does anybody know why it isn t working  or have a better solution

User · Answer

String id   UUID randomUUID   toString      See Android Developer blog article for using UUID class to get uuid

User · Answer

As Dave Webb mentions  the Android Developer Blog has an article that covers this   Their preferred solution is to track app installs rather than devices  and that will work well for most use cases   The blog post will show you the necessary code to make that work  and I recommend you check it out   However  the blog post goes on to discuss solutions if you need a device identifier rather than an app installation identifier   I spoke with someone at Google to get some additional clarification on a few items in the event that you need to do so   Here s what I discovered about device identifiers that s NOT mentioned in the aforementioned blog post    ANDROID ID is the preferred device identifier   ANDROID ID is perfectly reliable on versions of Android  lt  2 1 or   2 3   Only 2 2 has the problems mentioned in the post  Several devices by several manufacturers are affected by the ANDROID ID bug in 2 2  As far as I ve been able to determine  all affected devices have the same ANDROID ID  which is 9774d56d682e549c   Which is also the same device id reported by the emulator  btw  Google believes that OEMs have patched the issue for many or most of their devices  but I was able to verify that as of the beginning of April 2011  at least  it s still quite easy to find devices that have the broken ANDROID ID  When a device has multiple users  available on certain devices running Android 4 2 or higher   each user appears as a completely separate device  so the ANDROID ID value is unique to each user    Based on Google s recommendations  I implemented a class that will generate a unique UUID for each device  using ANDROID ID as the seed where appropriate  falling back on TelephonyManager getDeviceId   as necessary  and if that fails  resorting to a randomly generated unique UUID that is persisted across app restarts  but not app re-installations    Note that for devices that have to fallback on the device ID  the unique ID WILL persist across factory resets   This is something to be aware of   If you need to ensure that a factory reset will reset your unique ID  you may want to consider falling back directly to the random UUID instead of the device ID   Again  this code is for a device ID  not an app installation ID   For most situations  an app installation ID is probably what you re looking for   But if you do need a device ID  then the following code will probably work for you   import android content Context  import android content SharedPreferences  import android provider Settings Secure  import android telephony TelephonyManager   import java io UnsupportedEncodingException  import java util UUID   public class DeviceUuidFactory       protected static final String PREFS FILE    device id xml       protected static final String PREFS DEVICE ID    device id        protected static UUID uuid         public DeviceUuidFactory Context context             if  uuid   null                 synchronized  DeviceUuidFactory class                    if  uuid    null                        final SharedPreferences prefs   context getSharedPreferences  PREFS FILE  0                       final String id   prefs getString PREFS DEVICE ID  null                         if  id    null                               Use the ids previously computed and stored in the prefs file                         uuid   UUID fromString id                          else                            final String androidId   Secure getString context getContentResolver    Secure ANDROID ID                               Use the Android ID unless it s broken  in which case fallback on deviceId                             unless it s not available  then fallback on a random number which we store                            to a prefs file                         try                               if    9774d56d682e549c  equals androidId                                     uuid   UUID nameUUIDFromBytes androidId getBytes  utf8                                   else                                   final String deviceId     TelephonyManager  context getSystemService  Context TELEPHONY SERVICE    getDeviceId                                    uuid   deviceId  null   UUID nameUUIDFromBytes deviceId getBytes  utf8      UUID randomUUID                                                            catch  UnsupportedEncodingException e                                throw new RuntimeException e                                                         Write the value out to the prefs file                         prefs edit   putString PREFS DEVICE ID  uuid toString     commit                                                                                              Returns a unique UUID for the current android device   As with all UUIDs  this unique ID is  very highly likely         to be unique across all Android devices   Much more so than ANDROID ID is                The UUID is generated by using ANDROID ID as the base key if appropriate  falling back on        TelephonyManager getDeviceID   if ANDROID ID is known to be incorrect  and finally falling back        on a random UUID that s persisted to SharedPreferences if getDeviceID   does not return a        usable value                In some rare circumstances  this ID may change   In particular  if the device is factory reset a new device ID        may be generated   In addition  if a user upgrades their phone from certain buggy implementations of Android 2 2        to a newer  non-buggy version of Android  the device ID may change   Or  if a user uninstalls your app on        a device that has neither a proper Android ID nor a Device ID  this ID may change on reinstallation                Note that if the code falls back on using TelephonyManager getDeviceId    the resulting ID will NOT        change after a factory reset   Something to be aware of                Works around a bug in Android 2 2 for many devices when using ANDROID ID directly                 see http   code google com p android issues detail id 10603                return a UUID that may be used to uniquely identify your device for most purposes              public UUID getDeviceUuid             return uuid

User · Answer

Instead of getting IMEI from TelephonyManager use ANDROID ID   Settings Secure ANDROID ID   This works for each android device irrespective of having telephony

User · Answer

As of API 26  getDeviceId   is deprecated  If you need to get the IMEI of the device  use the following    String deviceId           if  Build VERSION SDK INT  gt   26            deviceId   getSystemService TelephonyManager class  getImei         else          deviceId   getSystemService TelephonyManager class  getDeviceId

User · Answer

This works for me   TelephonyManager tManager    TelephonyManager getSystemService Context TELEPHONY SERVICE   String uuid   tManager getDeviceId      EDIT    You also need android permission READ PHONE STATE set in your Manifest  Since Android M  you need to ask this permission at runtime   See this anwser   https   stackoverflow com a 38782876 1339179

User · Answer

Add      lt uses-permission android name  android permission READ PHONE STATE   gt    Method  String getUUID        TelephonyManager teleManager    TelephonyManager  getSystemService TELEPHONY SERVICE       String tmSerial   teleManager getSimSerialNumber        String tmDeviceId   teleManager getDeviceId        String androidId   android provider Settings Secure getString getContentResolver    android provider Settings Secure ANDROID ID       if  tmSerial     null  tmSerial      1       if  tmDeviceId   null  tmDeviceId    1       if  androidId    null  androidId     1       UUID deviceUuid   new UUID androidId hashCode      long tmDeviceId hashCode    lt  lt  32    tmSerial hashCode         String uniqueId   deviceUuid toString        return uniqueId

User · Answer

lt uses-permission android name  android permission READ PHONE STATE  gt  lt  uses-permission gt

[android] How can I get the UUID of my Android phone in an application?

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