difference between layout and layout-400dp-land

Question

The requirement for the app is that it should work on all devices. To support this I have

following layout defs-

layout/
layout-land/
layout-sw400dp-port/
layout-sw400dp-land/
layout-sw600dp-port/
layout-sw600dp-land/
layout-sw7200dp-port/
layout-sw7200dp-land/

its working fine for 7" and 10" tablets.

for the sw400dp devices ie 5" devices like Samsung Note etc, they are using layout/ and layout-land/. How can I force these devices to use layout-sw400dp-port/ and layout-sw400dp-land/

Answer 1

You can't

The original Note runs GingerBread (2.3) and the sw- identifiers only work from 3.2 upwards.

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

The configuration qualifiers you can use to provide size-specific resources are small, normal, large, and xlarge. For example, layouts for an extra large screen should go in layout-xlarge/.

Beginning with Android 3.2 (API level 13), the above size groups are deprecated and you should instead use the swdp configuration qualifier

Devices < 3.2 will not use the -sw layouts. To support all API levels you will need to provide layouts using both types of qualifiers.

Check out this post: http://android-developers.blogspot.co.uk/2011/07/new-tools-for-managing-screen-sizes.html

Previous versions of the platform will ignore any resources using the new resource qualifiers. This, then, is one approach that will work:

res/layout/main_activity.xml           # For phones
res/layout-xlarge/main_activity.xml    # For pre-3.2 tablets
res/layout-sw600dp/main_activity.xml   # For 3.2 and up tablets