public void openUrl(Context context, String url) {
    Log.d(TAG, "openUrl() url: " + url);
    if (TextUtils.isEmpty(url)) return;

    Uri uri = Uri.parse(url);
    if (uri.getScheme() == null) {
        Log.i(TAG, "openUrl() scheme is null, appending default scheme");
        uri = Uri.parse("http://" + url);
    }
    Log.d(TAG, "openUrl() uri: " + uri);

    Intent intent = new Intent(Intent.ACTION_VIEW, uri);

    boolean errorMessage = false;

    if (intent.resolveActivity(context.getPackageManager()) != null) {
        try {
            context.startActivity(intent);
        } catch (RuntimeException e) {
            boolean rethrow = true;

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
                if (e instanceof FileUriExposedException) {
                    // apparently happens when user clicks on some file URI in an article
                    Log.w(TAG, "openUrl()", e);
                    errorMessage = true;
                    rethrow = false;
                }
            }

            if (rethrow) throw e;
        }
    } else {
        Log.w(TAG, "openUrl() no activity to handle intent");
        errorMessage = true;
    }

    if (errorMessage) {
        Toast.makeText(context, R.string.message_couldNotOpenUrl, Toast.LENGTH_SHORT).show();
    }
}