ios - MVVM with UITextField and UICollectionViewCell/UITableViewCell -


i have uicollectionview bunch of full width/height uicollectionviewcell's. each cell has uilabel title , uitextfield edit title "in-place",

my viewcontroller has accessoriesviewmodel holds # accessory objects , passes accessoryviewmodel accessorycell.

the user can tap on edit locks uicollectionview scrolling , sets current cell in edit mode. label hidden, text field shown , user can edit name of accessory.

problem
user should not able press done if name of 0 length , on pressing done function updatename:completionhandler: should called on accessory in question.

how achieve "correct" way?

idea a
let viewcontroller delegate uitextfield , determine when done should enabled/disabled. calling updatename:completionhandler: on accessory when done.

idea x
?

hope can me on right track.

i've put example project on github mvvm editing


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