Android 判斷設備是否Root

public static boolean isRoot() {

		boolean root = false;

		try {
			if ((!new File("/system/bin/su").exists())
					&& (!new File("/system/xbin/su").exists())) {
				root = false;
			} else {
				root = true;
			}

		} catch (Exception e) {
		}

		return root;
	}