ios - Looping through all cells in UICollectionView -

i have uicollectionview , want add animation each cell.

currently i'm using

for(uicollectionview *cell in collectionview.visiblecells){   //add animation cell here } 

but applies animation visible cells , scroll down , cell no longer visible animation stops.

how loop through cells in uicollectionview?

i go in different way, probably. if want cells animate, set property shouldanimate = yes. in collectionview:cellforitematindexpath: check property , apply animation if needed (or remove it).

after setting property, reload visiblecells: [collectionview reloaditemsatindexpaths:collectionview.indexpathsforvisibleitems].

now, since animation provided when cell requested through datasource-protocol, animation when scroll.