Android Developers Docs Reference added in version 22.1.0 android.support.v4.print Interfaces PrintHelper.OnPrintFinishCallback Callback for observing when a print operation is completed. Classes PrintHelper Helper for printing bitmaps. Interfaces PrintHelper.OnPrintFinishCallback Classes PrintHelper Content and code samples on this page are subject to the licenses described in the Content License. Java is a registered trademark of Oracle and/or its affiliates. Last updated April 17, 2018.