/**
     * Safe Start activity for result with ActivityOptionsCompats
     *
     * @param a           current activity
     * @param i           intent to launch
     * @param requestCode requestCcde
     * @param options     ActivityOptionsCompat
     */
    public static void startActivityForResult(Activity a,
                                              Intent i,
                                              int requestCode,
                                              ActivityOptionsCompat options) {
        if (a == null) {
            return;
        }
        if (options != null) {
            a.startActivityForResult(
                    i,
                    requestCode,
                    options.toBundle()
            );
        } else {
            a.startActivityForResult(
                    i,
                    requestCode);
        }
    }
/**
     * Safe Start activity for result with ActivityOptionsCompats
     *
     * @param f           current fragment
     * @param i           intent to launch
     * @param requestCode requestCcde
     * @param options     ActivityOptionsCompat
     */
    public static void startActivityForResult(Fragment f,
                                              Intent i,
                                              int requestCode,
                                              ActivityOptionsCompat options) {
        if (f == null) {
            return;
        }
        if (options != null) {
            f.startActivityForResult(
                    i,
                    requestCode,
                    options.toBundle()
            );
        } else {
            f.startActivityForResult(
                    i,
                    requestCode);
        }
    }