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The ability to output a hard copy of your content can be a necessity for some ticketing and travel apps. However, it can also be an often overlooked and useful feature to enhance accessibility. Allowing your help to be printed is a quick win that can improve usability.
You can access the system printing framework through the PrintManager . To print, your app needs to generate a PDF version of your content, fortunately there are also PrintHelper  classes to generate PDFs from Images and Web Pages. For example, for images:
PrintHelper bitmapPrinter = new PrintHelper(getActivity());
Bitmap bitmap = BitmapFactory.decodeResource(getResources(),
For printing HTML content or the contents of a WebView you can request a PrintDocumentAdapter from the WebView and pass it to a PrintManager:
PrintManager printManager = (PrintManager) getActivity()
The most flexible approach to printing is to use the PdfDocument  class, create a new page, request its Canvas using getCanvas() and then render your content using the drawing apis onto the Canvas.
In all these cases the user is taken through a clean and consistent flow for selecting a printer, the print options and printing the content.
As Printing was introduced in API 19 you should use API gating techniques to avoid the option appearing in your app on earlier versions of Android, for this the /res/menu-v19 folder can be a useful tool.
We also have a training classes  and a DevByte  on Printing.
 DevBytes: Android 4.4 Printing API
- Houghton International, IncChief Technologist, 1999 - 2009
I enjoy helping people/organisations learn to help themselves. Whether that's with better communication, consolidating data for easy quick access, or simply providing tools for them to prosper faster.
I've managed projects from the initial concept to the finished implementation on three continents. I'm not afraid to get my hands dirty, whether crawling through sub flooring or digging deep into contract negotiations.
My passions are competing in sports, traveling, photography, advanced technology, and educating myself & others.
- St. Lawrence University1999
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