Webview app: How to download a file inside webview app & external link should open outside the app

Question

I want to download specific file inside android webview app ( although they are from external link not from my webview app URL) and all external link should open outside webview

Answer 1

 public boolean shouldOverrideUrlLoading(WebView view, String url) {

        boolean value = true;
        String extension = MimeTypeMap.getFileExtensionFromUrl(url);
        if (extension != null) {
            MimeTypeMap mime = MimeTypeMap.getSingleton();
            String mimeType = mime.getMimeTypeFromExtension(extension);
            if (mimeType != null) {
                if (mimeType.toLowerCase().contains("pdf")
                        || extension.toLowerCase().contains("ppt")
                        || extension.toLowerCase().contains("doc")
                        || extension.toLowerCase().contains("rar")
                        || extension.toLowerCase().contains("rtf")
                        || extension.toLowerCase().contains("exe")
                        || extension.toLowerCase().contains("apk")
                        || extension.toLowerCase().contains("jpeg")
                        || extension.toLowerCase().contains("png")
                        || extension.toLowerCase().contains("xls")
                        || extension.toLowerCase().contains("zip")
                        || extension.toLowerCase().contains("jpg")) {
                    DownloadManager mdDownloadManager = (DownloadManager)getSystemService(Context.DOWNLOAD_SERVICE);
                    DownloadManager.Request request = new DownloadManager.Request(
                            Uri.parse(url));
                    String name= URLUtil.guessFileName(url,null,MimeTypeMap.getFileExtensionFromUrl(url));
                    File destinationFile = new File(Environment.getExternalStorageDirectory(),name);
                    request.setDescription("Downloading...");
                    request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
                    // request.setDestinationUri(Uri.fromFile(destinationFile));
                    request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS,name);
                    mdDownloadManager.enqueue(request);
                    //value = false;
                }
            }
            if (value) {
                view.loadUrl(url);
            }

            if (!url.contains("my site url")) { // Could be cleverer and use a regex
                Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
                startActivity(intent);
                return true;
            }else{
            new AlertDialog.Builder(this)
            .setIcon(android.R.drawable.ic_dialog_alert)
            .setTitle("Exit!")
            .setMessage("Are you sure you want to close?")
            .setPositiveButton("Yes", new DialogInterface.OnClickListener()
            {
                @Override
                public void onClick(DialogInterface dialog, int which) {

                    finish();

                }

            })
            .setNegativeButton("No", null)
            .show();
                 }
            return false;
        }
        return false;

    } 

Replace the positive and negative buttons code to do whatever you like. i hope this answers your use case.