ios - Collection View Cell Size Is Not As Expected -


i'm trying make custom keyboard using storyboard. need use 2 collection views. want height , width of collection view cell height of collection view itself. constraints set properly. cell size not looking expected. same height collection view has on storyboard.

storyboard

simulator

here code.

        #import "mainviewcontroller.h"         #import "uppercollectionviewcell.h"         #import "lowercollectionviewcell.h"          @interface mainviewcontroller () <uicollectionviewdelegate, uicollectionviewdatasource, uicollectionviewdelegateflowlayout>          @property (weak, nonatomic) iboutlet uicollectionview *uppercollectionview;         @property (weak, nonatomic) iboutlet uicollectionview *lowercollectionview;          @property (strong, nonatomic) nsarray *upperdata;         @property (strong, nonatomic) nsarray *lowerdata;          @end          @implementation mainviewcontroller          - (void)viewdidload {         [super viewdidload];          nslog(@"view presented");          self.lowercollectionview.delegate = self;         self.lowercollectionview.datasource = self;         self.uppercollectionview.delegate = self;         self.uppercollectionview.datasource = self;          self.upperdata = @[[[datamodel alloc] initwithtitle:@"bollywood" subtitle:nil color:[uicolor orangecolor]],                        [[datamodel alloc] initwithtitle:@"hollywood" subtitle:nil color:[uicolor greencolor]],                        [[datamodel alloc] initwithtitle:@"tollywood" subtitle:nil color:[uicolor magentacolor]]];          self.lowerdata = @[[[datamodel alloc] initwithtitle:@"news" subtitle:@"very first comment" color:[uicolor bluecolor]],                        [[datamodel alloc] initwithtitle:@"tasks" subtitle:@"second comment" color:[uicolor redcolor]],                        [[datamodel alloc] initwithtitle:@"events" subtitle:@"third comment" color:[uicolor greencolor]]];          }          - (void)didreceivememorywarning {         [super didreceivememorywarning];         // dispose of resources can recreated.         }          - (nsinteger)numberofsectionsincollectionview:(uicollectionview *)collectionview {         return 1;         }          - (nsinteger)collectionview:(uicollectionview *)collectionview numberofitemsinsection:(nsinteger)section {          if(collectionview == self.lowercollectionview) {          return self.lowerdata.count;         }          else if(collectionview == self.uppercollectionview) {          return self.upperdata.count;         }         else {         return 0;         }         }          - (uicollectionviewcell *)collectionview:(uicollectionview *)collectionview cellforitematindexpath:(nsindexpath *)indexpath {          if(collectionview == self.lowercollectionview) {          lowercollectionviewcell *cell = [collectionview dequeuereusablecellwithreuseidentifier:@"lower_cv_cell" forindexpath:indexpath];         [cell setdatamodel:self.lowerdata[indexpath.row]];         [cell layoutifneeded];         return cell;         }          else if(collectionview == self.uppercollectionview) {          uppercollectionviewcell *cell = [collectionview dequeuereusablecellwithreuseidentifier:@"upper_cv_cell" forindexpath:indexpath];         [cell setdatamodel:self.upperdata[indexpath.row]];         [cell layoutifneeded];         return cell;          }         else {         return nil;         }         }          - (cgsize)collectionview:(uicollectionview *)collectionview layout:(uicollectionviewlayout *)collectionviewlayout sizeforitematindexpath:(nsindexpath *)indexpath {          if(collectionview == self.lowercollectionview) {          cgsize size = cgsizemake(collectionview.bounds.size.height, collectionview.bounds.size.height-10);          nslog(@"lower height : %@",nsstringfromcgsize(size));          return size;         }          else if(collectionview == self.uppercollectionview) {          cgsize size = cgsizemake(collectionview.bounds.size.height, collectionview.bounds.size.height-10);         nslog(@"upper height : %@",nsstringfromcgsize(size));         return size;         }         else {         return cgsizezero;         }         }          @end

unable figure out why cell size not expected.


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