How do I specify and add a custom printer in an Android app?
问题 I'm creating an app for Android. Part of the desired app functionality is that the user can select a special printer (let's just call it Transfer Printer) which will pass on the document-to-be-printed to a process running on an external server. What steps do I need to take to add a custom printer to the list of printers in the Android print panel, accessible from the Print option of the Overflow menu? It is desirable to use the existing Android print panel functionality rather than, for