How I can implement lazy loading in EPG?
Two Sections should be in attention to do this:
1) Channels - When the end of list channels is coming soon (in up/down buttons listing) -> Upload additional channels
2) Programs - When the end of list programs is coming soon (in left/right buttons listing) -> Upload additional programs
I think Observers should be used. But EPG allows to observe only programs indexes. - https://sdkdocs.roku.com/display/sdkdoc/EPGGrid, cannot get channel row index.
I supposed that ArrayGrid (as parent node) can helps me (such as focusRow and focusColumn) but no (they are always zero)