PrintedPdfDocument
open class PrintedPdfDocument : PdfDocument
kotlin.Any | ||
↳ | android.graphics.pdf.PdfDocument | |
↳ | android.print.pdf.PrintedPdfDocument |
This class is a helper for creating a PDF file for given print attributes. It is useful for implementing printing via the native Android graphics APIs.
This class computes the page width, page height, and content rectangle from the provided print attributes and these precomputed values can be accessed via getPageWidth()
, getPageHeight()
, and getPageContentRect()
, respectively. The startPage(int)
methods creates pages whose PageInfo
is initialized with the precomputed values for width, height, and content rectangle.
A typical use of the APIs looks like this:
// open a new document PrintedPdfDocument document = new PrintedPdfDocument(context, printAttributes); // start a page Page page = document.startPage(0); // draw something on the page View content = getContentView(); content.draw(page.getCanvas()); // finish the page document.finishPage(page); . . . // add more pages . . . // write the document content document.writeTo(getOutputStream()); //close the document document.close();
Summary
Public constructors | |
---|---|
PrintedPdfDocument(context: Context, attributes: PrintAttributes) Creates a new document. |
Public methods | |
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open Rect |
Gets the content rectangle. |
open Int |
Gets the page height. |
open Int |
Gets the page width. |
open PdfDocument.Page |
Starts a new page. |
Inherited functions | |
---|---|
Public constructors
PrintedPdfDocument
PrintedPdfDocument(
context: Context,
attributes: PrintAttributes)
Creates a new document.
Note: You must close the document after you are done by calling close()
.
Parameters | |
---|---|
context |
Context: Context instance for accessing resources. This value cannot be null . |
attributes |
PrintAttributes: The print attributes. This value cannot be null . |
Public methods
getPageContentRect
open fun getPageContentRect(): Rect
Gets the content rectangle. This is the area of the page that contains printed data and is relative to the page top left.
Return | |
---|---|
Rect |
The content rectangle. This value cannot be null . |
getPageHeight
open fun getPageHeight(): Int
Gets the page height.
Return | |
---|---|
Int |
The page height in PostScript points (1/72th of an inch). Value is 0 or greater |
getPageWidth
open fun getPageWidth(): Int
Gets the page width.
Return | |
---|---|
Int |
The page width in PostScript points (1/72th of an inch). Value is 0 or greater |
startPage
open fun startPage(pageNumber: Int): PdfDocument.Page
Starts a new page. The page is created using width, height and content rectangle computed from the print attributes passed in the constructor and the given page number to create an appropriate PageInfo
.
After the page is created you can draw arbitrary content on the page's canvas which you can get by calling Page.getCanvas()
. After you are done drawing the content you should finish the page by calling finishPage(android.graphics.pdf.PdfDocument.Page)
. After the page is finished you should no longer access the page or its canvas.
Note: Do not call this method after close()
. Also do not call this method if the last page returned by this method is not finished by calling finishPage(android.graphics.pdf.PdfDocument.Page)
.
Parameters | |
---|---|
pageNumber |
Int: The page number. Must be a non negative. Value is 0 or greater |
Return | |
---|---|
PdfDocument.Page |
A blank page. This value cannot be null . |
See Also