Printing capabilities in android [duplicate]

This question already has answers here: Android Printing API on Galaxy Tab (2 answers) Closed 9 years ago.

I have made research on printing capabilities in android and came to the solution that there is no official sdk available and printing via Bluetooth is not possible.

There is a third party api provided by send2printer app.when i supposed to run the project i got the开发者_运维问答 "Beta Expired" message.

non official iprint sdk seems to be paid one.

Then how we make the printing capability in android? please guide me on this..

Thanks.

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The following links can provide you some help

i> Android Printing API on Galaxy Tab

ii> Printing API in Android