Determine if running on a rooted device

Question

My app has a certain piece of functionality that will only work on a device where root is available. Rather than having this feature fail when it is used (and then show an a

Answer 1

You can do this by following code :

boolean root;
    String[] su_paths = {"/system/app/Superuser.apk",  "/system/bin/su", "/system/xbin/su", "/data/local/xbin/su", "/data/local/bin/su", "/system/sd/xbin/su","/sbin/su",
                     "/data/local/su", "/su/bin/su","/system/bin/failsafe/su"};
            for (String path : su_paths)
                if (new File(path).exists()) 
                       root = true;
    

This solution will work in maximum cases.

Alternate solution (not advisable to use it due to memory usage)

boolean rooted=true;
        try {
              Process process = Runtime.getRuntime().exec("su"); 
              Toast.makeText(getApplicationContext(), "Device is rooted", Toast.LENGTH_SHORT).show();                
            } 
            catch(IOException e){
              rooted=false;
              Toast.makeText(getApplicationContext(), "Device is not rooted", Toast.LENGTH_SHORT).show();
              e.printStackTrace();
            }

If device is rooted then "su" command will be executed otherwise it will throw an exception, through that we can determine whether device is rooted or not. You can also check this library RootBeer.