Question

I’ve develop an app for android and now I support large screen devices. So I create an image for this device. Now I want to resize large images for medium screen sizes.

What is the proportion? For example if an image for large screen is 85×111(px), what is the dimension for medium?

Answer 1

There are different screen densities. ldpi, mdpi, hdpi, xhdpi , you have to create different images for all these densities, if you would like to support all screen.

see the links below.

http://developer.android.com/guide/practices/screens_support.html

http://developer.android.com/resources/dashboard/screens.html

hdpi ~ 240dpi – 240 pixels per inch.

mdpi ~ 160dpi – 160 pixels per inch.

so the scaling factor is 160/240 = 2/3. so if you have 85 x 111 in hdpi, for mdpi it should be 85*2/3 x 111*2/3.