The news is particularly interesting for developers; we are talking about a new tool provided directly from the Android Developer site.
The tool, after all, is not a real novelty as it was already present in the past; but today it has been improved, changed, perfected and, therefore, renamed into Device Art Generator.
It is a tool, better known as frame generator, which allows us to add frames to our screenshots, frames that will be the four main Google devices: the Nexus S, the Galaxy Nexus, the Nexus 7 and the Motorola XOOM. Once your screenshots have been “embedded” within the devices, you can spread them online and use them as you see fit. Here’s an example.
The tool imposes only one limit on us: the images must be in png format, and to guarantee greater professionalism, also in HD. -> Device Art Generator