Android Question How to save a PDF file from WebView?

Riddle Ling · Aug 4, 2017

How can i achieve the following code in B4A?

code source:
http://www.annalytics.co.uk/android/pdf/2017/04/06/Save-PDF-From-An-Android-WebView/

B4X:

private void createWebPrintJob(WebView webView) {
    String jobName = getString(R.string.app_name) + " Document";
    PrintAttributes attributes = new PrintAttributes.Builder()
            .setMediaSize(PrintAttributes.MediaSize.ISO_A4)
            .setResolution(new PrintAttributes.Resolution("pdf", "pdf", 600, 600))
            .setMinMargins(PrintAttributes.Margins.NO_MARGINS).build();
    File path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM + "/PDFTest/");
    PdfPrint pdfPrint = new PdfPrint(attributes);
    pdfPrint.print(webView.createPrintDocumentAdapter(jobName), path, "output_" + System.currentTimeMillis() + ".pdf");
  }

eps · Aug 4, 2017

This? https://www.b4x.com/android/forum/threads/printing-and-pdf-creation.76712/

DonManfred · Aug 4, 2017

eps said:
This?

He does not want to create a pdf by code. Not in the way the lib is working...
He want to write the content of a webview to a PDF.

Star-Dust · Aug 4, 2017

Try this

WebWiew to Bitmap (WebView.CaptureBitmap)
Bitmap to PDF

eps · Aug 4, 2017

DonManfred said:
He does not want to create a pdf by code. Not in the way the lib is working...
He want to write the content of a webview to a PDF.

Yes but that link allows you to 'print to a PDF'... which is the same thing

DonManfred · Aug 4, 2017

1st you need to create the pdf from the webview-content. Then you can use the lib to print it.

DonManfred · Aug 4, 2017

eps said:
to 'print to a PDF'.

To "print a PDF"

DonManfred · Aug 4, 2017

Yes, you are right

Erel said:
The Printer object can print bitmaps, html documents, WebView content and PDF documents.

Riddle Ling · Aug 4, 2017

Star-Dust said:
Try this

WebWiew to Bitmap (WebView.CaptureBitmap)
Bitmap to PDF

But Bitmap is not a document.

Riddle Ling · Aug 4, 2017

eps said:
Yes but that link allows you to 'print to a PDF'... which is the same thing

How do I print the webpage to PDF?
Thank you!

DonManfred · Aug 4, 2017

Riddle Ling said:
How do I print the webpage to PDF?

See the Thread posted above.
In webview page finished event you call

B4X:

printer.PrintWebView("jobname",mywebview)

DonManfred · Aug 4, 2017

eps said:
Yes but that link allows you to 'print to a PDF'... which is the same thing

How?
I just had a look at the methods... In the PDFDocument i did not found a way to create pages from a webview.
In the Printer i just found a way to Print the content of a webview.
I did not saw a method to print the content of a webview to a PDF.

eps · Aug 4, 2017

DonManfred said:
How?
I just had a look at the methods... In the PDFDocument i did not found a way to create pages from a webview.
In the Printer i just found a way to Print the content of a webview.
I did not saw a method to print the content of a webview to a PDF.

From the link "The Printer object can print bitmaps, html documents, WebView content and PDF documents."

Riddle Ling · Aug 4, 2017

DonManfred said:
See the Thread posted above.
In webview page finished event you call

B4X:

printer.PrintWebView("jobname",mywebview)

Is Work!
Thank you!

Star-Dust · Aug 4, 2017

Riddle Ling said:
But Bitmap is not a document.

I did not understand what you mean by saying it's not a document. Anyway, using the PDFWriter library would resolve.
PDF.addImage (fromLeftAsInt, fromBottomAsInt, bitmapAsandroid.graphics.Bitmap)

See: https://www.b4x.com/android/help/pdfwriter.html

Riddle Ling · Aug 5, 2017

Star-Dust said:
I did not understand what you mean by saying it's not a document. Anyway, using the PDFWriter library would resolve.
PDF.addImage (fromLeftAsInt, fromBottomAsInt, bitmapAsandroid.graphics.Bitmap)

See: https://www.b4x.com/android/help/pdfwriter.html

Thanks for your reply!

But...
Bitmap = Image
Document = Text + Image + URL + ......

So Bitmap is not a Document.

Didier9 · Aug 6, 2017

Star-Dust said:
I did not understand what you mean by saying it's not a document. Anyway, using the PDFWriter library would resolve.
PDF.addImage (fromLeftAsInt, fromBottomAsInt, bitmapAsandroid.graphics.Bitmap)

See: https://www.b4x.com/android/help/pdfwriter.html

But will this print the entire web page, or only the part that is visible (like a screen capture)?

Riddle Ling · Aug 6, 2017

Didier9 said:
But will this print the entire web page, or only the part that is visible (like a screen capture)?

If targetSdkVersion>=21,
WebView.CaptureBitmap use this method: https://www.b4x.com/android/forum/threads/webview-capturebitmap-not-working-with-api-21.67193/#post-425358
You can print the entire web page

Star-Dust · Aug 6, 2017

Didier9 said:
But will this print the entire web page, or only the part that is visible (like a screen capture)?

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