How to implement delegate and datasource methods for UICollectionView when it is inside a custom TableViewCell in iOS, objective C -

note : don't want use third party libraries

• i have tableview with custom table view cell (table view working fine).
• now inside table view cell want implement collection view.
• now problem , should implement delegate methods , data source methods collection view, inside custom table view cell . below have tried.

tabel view controller implementation

- (nsinteger)numberofsectionsintableview:(uitableview *)tableview {     return 1; }  - (nsinteger)tableview:(uitableview *)tableview numberofrowsinsection:(nsinteger)section {     return 5; }  - (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath {     firsttableviewcell *cell = [tableview dequeuereusablecellwithidentifier:@"tvcell"];      return cell; } 

working properly

now inside firsttableviewcell there collection view.

this firsttableviwecell.h file

#import <uikit/uikit.h>  @interface firsttableviewcell : uitableviewcell<uicollectionviewdelegate,uicollectionviewdatasource> @property (weak, nonatomic, nullable) iboutlet uicollectionview *insidecollectionview;  @property (strong, nonnull,nonatomic) nsarray *mycollectiondata; - (void)setcolletiondata :(nonnull nsarray *)collectiondata;  @end 

and firsttableviewcell.m file

#import "firsttableviewcell.h"  @implementation firsttableviewcell  - (void)awakefromnib {     [super awakefromnib];     self.insidecollectionview.delegate = self;      // initialization code }  - (void)setselected:(bool)selected animated:(bool)animated {     [super setselected:selected animated:animated];      // configure view selected state }  - (void)setcolletiondata:(nsarray *)collectiondata {     self.mycollectiondata = collectiondata;     [self.insidecollectionview reloaddata]; }   - (nsinteger)numberofsectionsincollectionview:(uicollectionview *)collectionview {     return 1; }  - (nsinteger)collectionview:(uicollectionview *)collectionview numberofitemsinsection:(nsinteger)section {     return 10; }  - (uicollectionviewcell *)collectionview:(uicollectionview *)collectionview cellforitematindexpath:(nsindexpath *)indexpath {     uicollectionviewcell *ccell = [collectionview dequeuereusablecellwithreuseidentifier:@"cvcell" forindexpath:indexpath];     return ccell; }  @end 

following method

- (void)setcolletiondata:(nsarray *)collectiondata     {         self.mycollectiondata = collectiondata;         [self.insidecollectionview reloaddata];     } 

i used set array collectionview, in cellforrowatindexpath in tableview

so correct way implement datasource , delegate methods collectionview inside custom table view cell.

what have correct. real change need update collection view data source , delegate methods in custom cell class reference self.mycollectiondata.

for example. change numberofitemsinsection to:

- (nsinteger)collectionview:(uicollectionview *)collectionview numberofitemsinsection:(nsinteger)section {     return self.mycollectiondata.count; }