I'm designing an app for android, and the main devices we're targeting are Nexus S and Galaxy Tab, so I wonder which resolution should I design for and what PPI to use? I'd be using photoshop.
Surprisingly, I couldn't find a single decent PSD template for android while there are tons available for iOS, or maybe I'm just not looking at the right place?
Many thanks
The Nexus S and Galaxy Tab both have HDPI
screens. The layout sizes are:
For HDPI graphics the nominal resolution is 240 DPI. The size of a graphic should be
pixels = dips * (density / 160)
which for HDPI devices becomes pixels = dips * 1.5
, where dips is the size of the object in density independent pixels.
This means a 16x16 normal (MDPI) icon should be 24x24 pixels on an HDPI device to maintain the same size graphic.
The screen sizes are:
so just make your mockups this size.