android - how to read wpa_supplicant.conf file -

can me read /data/misc/wifi/wpa_supplicant.conf file in android device through android app programmatically.

i tried below code read information stored in wpa_supplicant.conf file , display information in textview.but returns nothing.

try  {      process psproc = runtime.getruntime().exec(new string[]{"su","-c"});//root     file path=environment.getdatadirectory();     file myfile = new file("/data/misc/wifi/wpa_supplicant.conf");     fileinputstream fin = new fileinputstream(myfile);     bufferedreader myreader = new bufferedreader(     new inputstreamreader(fin));     string adatarow = "";     string abuffer = "";     while ((adatarow = myreader.readline()) != null) {         abuffer += adatarow + "\n";     }     tv.settext(abuffer);     myreader.close();     toast.maketext(getbasecontext(),"done reading sd 'textareaappender.java'",                 toast.length_short).show(); } catch (exception e)  {     toast.maketext(getbasecontext(), e.getmessage(),toast.length_long).show();     tv.settext(e.getmessage()); } 

textview displays nothing.

please make sure have remount partition. otherwise, have no permission read / write here.

you can try following before further operation on folder.

runtime.getruntime().exec("system/bin/mount -o rw,remount -t rootfs /data"); runtime.getruntime().exec("system/bin/chmod 777 /data/misc/wifi");