To change accordingly to landscape/portrait mode

Question

I have a date/time picker which I want them to react according based on its layout.

Consider on landscape mode:

This is a perfect placement of what I

Answer 1

You can create a layout-land directory that contains landscape layouts of your screens. In this case you would place the original layout inside the layout-land directory and place the orientation:vertical layout inside your layout folder.

The Android documentation has information on how to support different screens