Android Design for ICS

Hello and happy new Year :o)
You want to make an Android application, for multiple devices, excellent ! But before take few minutes to read what are the design guide lines. Google just open a web site to explain those guidelines. The article is simple clear and complete. So just read it :
http://developer.android.com/design/index.html
This article is really good for all the GUI stuff, you should read it , even if you are on Froyo, just to have a clear vision on GUI guide line and ressources.

(Anyway, keep in mind 3.9% of the devices have an SDK version greater than 2.3. see Android target, so not all is your concern )
Okay, this is the today news :o)

So, Thanks who?
Thanks, Android2ee, the Android Programming Ebooks :o) Android Training :o)

Mathias Séguy
mathias.seguy.it@gmail.com
Auteur Android2EE
Ebooks to learn Android Programming.

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Define your picture in dp not in px

When defining an image (here, for example, use an image 73 pixels wide and 29 pixels high), you tend to write:

Define your pictures for all densities : ldpi,mdpi,hdpi (and xhdpi if you target tablet)

In my previous post we understood why we need to declare our images in the layout file in dp (density-independent pixels). Thus, whatever the density of the screen, the image is the "same" size.
The corollary is: if you define/declare your pictures (in the folder drawable) once regardless of the density, they'll appear coarse in hdpi (and also in ldpi).