Question

Today, i read much information on android’s multi-screen document. I doubt that android support multi-screen on QVGA, HVGA and WVGA when you use ‘dp’ unit on the xml layout.Does the android support the same density but different resolution? For example, i define a xml layout for mdip. Can this layout be used on 480×800 and 320×480 resolution?

Thank You.

Answer 1

To answer your question: Yes, that layout could be used on various resolutions.

If you’re using density based layouts and drawables, they can be used across all kinds of screen sizes. Examples of mdpi (160):

• Normal screen: HVGA (320×480)
• Large screen: WVGA800 (480×800), WVGA854 (480×854), 600×1024
• Xtra large screen: WXGA (1280×800), 1024×768, 1280×768

They might be different resolutions, but the density is approximately the same (mdpi). If you want to create layouts for each specific screen size, you can use normal-mdpi, large-mdpi and xlarge-mdpi.

There’s a lot of information available on the subject at the Android Developer site: http://developer.android.com/guide/practices/screens_support.html

I’d suggest you go ahead and do a lot of testing with the various SDK templates. That helped me a lot when I was in your situation.