Android: Requesting root access in your app

תÌû£ºhttp://www.stealthcopter.com/blog/2010/01/android-requesting-root-access-in-your-app/
This snippet shows how root access can be requested inside an application in order to write a file into a place we do not have permission to access usually. Requesting root access will only work if your phone allows it, or it has been ‘rooted’ (hacked to allow superuser permissions).
view plaincopy to clipboardprint?
Process p;   
try {   
   // Preform su to get root privledges   
   p = Runtime.getRuntime().exec("su");    
  
   // Attempt to write a file to a root-only   
   DataOutputStream os = new DataOutputStream(p.getOutputStream());   
   os.writeBytes("echo \"Do I have root?\" >/system/sd/temporary.txt\n");   
  
   // Close the terminal   
   os.writeBytes("exit\n");   
   os.flush();   
   try {   
      p.waitFor();   
           if (p.exitValue() != 255) {   
              // TODO Code to run on success   
              toastMessage("root");   
           }   
           else {   
              &nb