ios - Using NSArray to populate collectionView -

i new objective-c, have function accepts nsarray parameter want store array in local var in function , populate collection view through array, ps i'll have update cellforitematindexpath delegate method in same class.

this method in tableview's cell class. here i've embedded collectionview in cell.

-(void)initcellwithsetsarray:(nsarray *)setsarray{  nsmutablearray *setarray = [nsmutablearray array];     } 

this calling method accept array in cellforrowat tableview's delegate method.

-(uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath{         [cell initcellwithsetsarray :self.setshistoryarray]; } 

so need update collectionview based on array parsed in func when called in cellforrowatindexpath. hope guys picture now.

you need add property cell class hold array:

@property (strong, nonatomic) nsarray *setsarray;  -(void) setsetsarray(nsarray *)sets {      _setsarray = sets;      [self.collectionview reloaddata]; }  - (nsinteger)collectionview:(uicollectionview *)collectionview   numberofitemsinsection:(nsinteger)section {     return [self.setsarray count]; } 

you can use array in cellforitemat method in cell class.

also, in cell classes prepareforreuse should clear existing array , reload collection view:

-(void)prepareforreuse {     self.setsarray = nil;     [self.collectionview reloaddata]; } 

then can assign property in cellforrowat::

-(uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath{     mycellclass *cell = (mycellclass *)[tableview dequeuereusablecellwithidentifier:"mycellidentifier" forindexpath:indexpath];     cell.setsarray = self.setshistoryarray;  // note: looks wrong; - should use indexpath.row right data row     return cell; }