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| <p> |
| Provides classes for implementing print services. Print services are plug-in components |
| that know how to talk to printers via some standard protocols. These services serve as a |
| bridge between the system and the printers. Hence, the printer and print protocol specific |
| implementation is factored out of the system and can be independently developed and updated. |
| </p> |
| <p> |
| A print service implementation should extend {@link android.printservice.PrintService} |
| and implement its abstract methods. Also the print service has to follow the contract for |
| managing {@link android.printservice.PrintJob}s. |
| <p/> |
| <p> |
| The system is responsible for starting and stopping a print service depending on whether |
| there are active print jobs for the printers managed by the service. The print service |
| should also perform printer discovery in a timely fashion to ensure good user experience. |
| The interaction between the system and the print service during printer discovery is |
| encapsulated by a {@link android.printservice.PrinterDiscoverySession} instance created |
| by the print service when requested by the system. |
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