ios - UICollectionView for custom, grid-like view -

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i need specific collection view app i'm working on , wonder whether uicollectionview custom uicollectionviewlayout task. here's functionality sums i'm trying achieve:

  • i need grid layout doesn't wrap/flow when symbols added. instead rows/columns added automatically hold newly added symbols.
  • the user should able drag'n'drop symbols on grid , symbol drops 'magnetically' position in grid.
  • rows , columns can added or removed to/from grid.
  • when symbol dropped between 2 other symbols grid should automatically insert new column it.
  • the grid needs performant , fluid, can comfortably navigated (i dimly remember custom uicollectionview solutions acted spreadsheet grid overkill need).

i'm not familiar programming custom uicollectionviewlayouts yet (getting matter now). i'd ask if uicollectionview fits bill above requirements or whether it's better custom? hints , tips appreciated!


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