Andriod Whatsapp tel, email function workingcode

 private class WebViewClientDemo extends WebViewClient {

    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {

        if (url.startsWith("tel:") || url.startsWith("whatsapp:")) {
            Intent intent = new Intent(Intent.ACTION_VIEW);
            intent.setData(Uri.parse(url));
            startActivity(intent);
            return true;
        }
        return false;
    }
}

public void onPageFinished(WebView view, String url) {
            swipeRefreshLayout.setRefreshing(false);
        }
    });