To make a app support multiple screen device, you can use put layout here
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
and you can set each layout accordingly to device size by selecting preview all option or selecting particular screen
solved Android Screen On different phones [closed]