ios - How to reduce memory usage in collection view? -

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i have app consist of collectionview 30 cell. cell consist of image , label. problem is, when load image memory use going 87 mb. if didn't set image, memory use 30 mb.

i using moa load image asynchronously. , here cell init:

import uikit import moa  class productlistitemcell: uicollectionviewcell {      @iboutlet var imgproductitem: uiimageview!     @iboutlet var titlleproductlist: uilabel!     @iboutlet var priceproductlist: uilabel!     @iboutlet var boldpriceproductlist: uilabel!      func updatecontent(product: item) { //        if let imgurl = product.picurl { //             self.imgproductitem.moa.url = "http:\(imgurl)" //        }          if let title = product.title {             self.titlleproductlist.text = title         }          if let price = product.pricetag {             self.priceproductlist.setstrikethrough(price)         }          if let boldprice = product.price {             self.boldpriceproductlist.text = boldprice         }     }  }

and here cellforitematindexpath

func collectionview(collectionview: uicollectionview, cellforitematindexpath indexpath: nsindexpath) -> uicollectionviewcell {      if collectionview == myitemscollectionview {         let cell = collectionview.dequeuereusablecellwithreuseidentifier("firstcell", forindexpath: indexpath) as! mycollectionviewcell          cell.updatecontent(self.myitems.items[indexpath.item])          return cell     }     else {         let cell = collectionview.dequeuereusablecellwithreuseidentifier("otherscell", forindexpath: indexpath) as! mycollectionviewcell         cell.updatecontent(others[indexpath.section].items[indexpath.item])         return cell     }  }

is there way download image , "compress" it? or doing wrong? pls let me know. been stuck @ point weeks.

note: how many memory use standard apps collectionview apps? 30mb belongs "high"? newbie in memory management.

thank much.

yes, use instrument check memory leak , memory increase caused image load correct. had problem before. did use image caching library such sdwebimage , solve problem it's require data first time fetch


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