How to design a small device application.

[Niamita]

Hi all

I developed a app in qt4.7.4 , it is working fine in desktop as i desire.Whole ui i designed using layout by taking the idea that layout will autofit on different screens. Now when i run my app on phone and tablet ui does not displaying correctly. Window get cut horizontally and vertically so that widget also does not display correctly.
I googled a lot for this but i am not getting any idea what i have to do. Should i design seperate ui for small devices or is their way to design a ui which will work fine on all screens like desktop, tablets, pnone.
I have to design one application which run on all devices.
Thanks in advance.

[john_god]

From my experience, and from what I read in the web about this subject, it will be very hard to use the same code for desktop and mobile apps. What I've done (and it seems to be the general way to do it) is build different ui's and re-use the same code logic.