Android various models, various system versions, how to get the external sdcard path

Because of the project needs, in the case of external sdcard, may not want to directly put in-app data into the built-in sdcard, I specifically wrote a function to get the SDcard path

If you have an external sdcard to get an external sdcard, if you do not use the system default "external SDcard" (in-depth study may know that this external sdcard is actually from the built-in SDcard a partition from the inside of it)

Directly below the code:

public static string Getsdcardpath () {string cmd = "cat/proc/mounts";        Runtime run = Runtime.getruntime ();        Bufferedinputstream In=null;        BufferedReader Inbr=null;            try {Process p = run.exec (cmd);            in = new Bufferedinputstream (P.getinputstream ());            INBR = new BufferedReader (new InputStreamReader (in));            String Linestr;                while ((Linestr = Inbr.readline ()) = null) {LOG.I ("Commonuitls", linestr); if (Linestr.tolowercase (). Contains ("SDcard". toLowerCase ()) && linestr.contains (". Android_se                    Cure ")) {string[] Strarray = Linestr.split (" "); if (Strarray! = null && strarray.length >= 5) {String result = Strarray[1].replace ("/.a                        Ndroid_secure "," ");                        LOG.I ("Commonuitls", result);                    return result;     }           } if (Linestr.tolowercase (). Contains ("EXTSD". toLowerCase ())) {string[] Strarray =                Linestr.split ("");                LOG.I ("Commonuitls", strarray[1]);                return strarray[1]; } if (p.waitfor () = 0 && p.exitvalue () = = 1) {LOG.E ("Commonuitls", "CMD cat/proc/ Mounts error! ");}}        catch (Exception e) {e.printstacktrace ();        LOG.E ("Commonuitls", e.tostring ());            }finally{try {if (in!=null) {in.close ();            }} catch (IOException e) {//TODO auto-generated catch block E.printstacktrace ();            LOG.E ("Commonuitls", e.tostring ());         } try {if (inbr!=null) {inbr.close (); }} catch (IOException e) {//TODO auto-generated catch Blocke.printstacktrace ();    LOG.E ("Commonuitls", e.tostring ());} } return Environment.getexTernalstoragedirectory (). GetPath ();} 

Android various models, various system versions, how to get the external sdcard path