I'd like write a layout manager for j2me. I already have widgets and panels (panel is a set of widgets in this context). Now I'd like to add dynimc layout management so when i call doLayout on the outer most panel, internal widgets and panels rearrange according device's width and height.
I was wondering whether there any well known patterns for layout managers.
Common approach which I know is to keep each Displayable in Stack collection, such that current panel/screen should always be on top of Stack. And when user press "back" button you just should pop previous screen/panel on top of Stack.
Example can be found here
Each UI object should return a "minimum size (w,h)". Then you need an algorithm that traverse all your objects and split the available area in chunks and assign each chunk to an object. You can Tree-Partition it based on the object relevance.