direct link from google drive

// gdrive link must be share
###########
public static String getFinalUrl(String pdfUrl) {
        String documentId = getDocumentId(pdfUrl);
        pdfUrl = "https://drive.google.com/uc?export=download&id=" + documentId;
        return pdfUrl;
    }
    public static String getDocumentId(String pdfUrl) {
        int beginIndex = "https://drive.google.com/file/d/".length();
        int endIndex = pdfUrl.lastIndexOf('/');
        if (endIndex < 0) {
            endIndex = pdfUrl.length();
        }
        String documentId;
        try {
            documentId = pdfUrl.substring(beginIndex, endIndex);
        } catch (StringIndexOutOfBoundsException e) {
            e.printStackTrace();
            return "";
        }
        return documentId;
    }
===================
usage =
getFinalUrl("https://drive.google.com/file/d/1yqZtxX3YYpVOkqzvukg4-hGA6cwac5oJ/view?usp=share_link");