스크린크기에 따른 밀도 계산 : 픽셀 = dip * (밀도/160)

	Low density 120 Ldip	Medium density 160 Mdip	High density 240 Hdip
Small	QVGA(240 * 320)
Normal	WQVGA(240 * 400) FWQVGA(240 * 432)	HVGA(320 * 480)	WVGA(480 * 800) FWVGA(480 * 854)
Large		WVGA(480 * 800) FWVGA(480 * 854)

픽셀 = dip * (밀도/160)

xhdpi = 96px

xxhdpi = 144px

DisplayMetrics dm = new DisplayMetrics();

getWindow().getWindowManager().getDefaultDisplay().getMetrics(dm);

int pixel = (int)(dp * dm.density);

dm.density 값

120>0.75

160>1

240>1.5

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

http://developer.android.com/guide/topics/resources/providing-resources.html

갤럭시탭 10.1

drawable-xlarge-mdpi

layout-xlarge 또는 layout-1280x800

갤럭시탭 7.0

drawable-large-hdpi

layout-1024x600

일반폰 (480x800)

drawable-hdpi

layout

HD폰(1280x720)

drawable-xhdpi

layout-1280x720

layout-sw360dp

drawable-xhdpi

drawable-xlarge-mdpi

36x36 for low-density

48x48 for medium-density

72x72 for high-density

96x96 for extra high-density

res/layout/my_layout.xml             // layout for normal screen size ("default")

res/layout-small/my_layout.xml       // layout for small screen size

res/layout-large/my_layout.xml       // layout for large screen size

res/layout-xlarge/my_layout.xml      // layout for extra large screen size

res/layout-xlarge-land/my_layout.xml // layout for extra large in landscape orientation

res/drawable-mdpi/my_icon.png        // bitmap for medium density

res/drawable-hdpi/my_icon.png        // bitmap for high density

res/drawable-xhdpi/my_icon.png       // bitmap for extra high density

320dp: a typical phone screen (240x320 ldpi, 320x480 mdpi, 480x800 hdpi, etc).

480dp: a tweener tablet like the Streak (480x800 mdpi).

600dp: a 7” tablet (600x1024 mdpi).

720dp: a 10” tablet (720x1280 mdpi, 800x1280 mdpi, etc).

res/layout/main_activity.xml           # For handsets

res/layout-sw600dp/main_activity.xml   # For tablets

res/layout/main_activity.xml           # For handsets (smaller than 600dp available width)

res/layout-sw600dp/main_activity.xml   # For 7” tablets (600dp wide and bigger)

res/layout-sw720dp/main_activity.xml   # For 10” tablets (720dp wide and bigger)