ios - Hiding a specific cell hides random cells -

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when create uicollectionviewcells, tried in cellforrowatindexpath

(if indexpath.row == 3){     cell.hidden = yes; }

i have 6 cells. they're randomly set hidden when refresh collectionview. not 1 cell hidden (even though hardcoded 3 make sure @ least 1 cell).

any clue?

its because cell reused.
keep in mind, when use if in cellforrowatindexpath, must implement else part.

if (indexpath.row == 3){     cell.hidden = yes; } else {     cell.hidden = no; }

or
cell.hidden = indexpath.row == 3;


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