ios - UIButton isn't responding to my touches on collectionView cells? -

i'm creating collectionview , inside in every cell i'm creating few buttons horizontally buttons aren't responding target selector.

here code.

implementationview.h

-(ibaction)tagclicked:(uibutton*)sender; 

in implementationview.m

-(void)configurescrapcell:(uicollectionviewcell*) cell forscrapdict:(scrapdictionary *)dict forindexpath:(nsindexpath*){  uiview *tagview = (uiview*)[cell viewwithtag:17]; uiview *layertagview = (uiview*)[cell viewwithtag:18]; cgfloat x = 0.0;  if (layertagview) {     [layertagview removefromsuperview];   }    layertagview = [[uiview alloc] init];    layertagview.tag = 18;    [tagview addsubview:layertagview];     if ([dict.sdtags count]>0) {         int tagindex = 1;         (nsstring *tag in dict.sdtags) {             cgsize width = [tag sizewithfont:[uifont systemfontofsize:16]];                 uibutton *scraptag = [[uibutton alloc]initwithframe:cgrectmake(x, 0,100, 30)];         [scraptag setbackgroundcolor:[uicolor greencolor]];         [scraptag.titlelabel setfont:[uifont systemfontofsize:14]];     //  [scraptag setcontenthorizontalalignment:uicontrolcontenthorizontalalignmentleft];     if (brightness > 150) {          [scraptag settitlecolor:[uicolor blackcolor] forstate:uicontrolstatenormal];      }else {                  [scraptag settitlecolor:[uicolor whitecolor] forstate:uicontrolstatenormal];     }          [scraptag settitle:[nsstring stringwithformat:@" #%@",tag] forstate:uicontrolstatenormal];     //   [scraptag sizetofit];           [scraptag setuserinteractionenabled:yes];          tagindex++;          nsstring *tagstring = @"";          tagstring = [tagstring stringbyappendingstring:tag];          if ([tagstring length]>32 || tagindex>4) {             break;        }  [scraptag addtarget:self action:@selector(tagclicked:) forcontrolevents:uicontroleventtouchupinside];       [layertagview addsubview:scraptag];     nslog(@"%f",scraptag.frame.size.width);     //  scraptag.frame = cgrectmake(x, scraptag.frame.origin.y, tagview.frame.size.width, 30);                 x += scraptag.frame.size.width +2;              }         }          [tagview setbackgroundcolor:[uicolor colorwithred:red/255.0f green:green/255.0f blue:blue/255.0f alpha:0.5]];         [layertagview setbackgroundcolor:[uicolor colorwithred:red/255.0f green:green/255.0f blue:blue/255.0f alpha:0.5]]; 

now in different class i'm defining action of these button clicked. implementationview class acting delegate newclass.

newclass.h

#import implementationview.h @interface newclass : implementationview 

newclass.m

-(ibaction)tagclicked:(uibutton *)sender {     [[[uialertview alloc]initwithtitle:@"lol" message:[nsstring stringwithformat:@"%@",sender.titlelabel.text] delegate:self cancelbuttontitle:@"ok" otherbuttontitles:nil, nil]show ];      nslog(@"testing tag clicked"); } 

let me know if need other make question clear. appreciated. in advance.

your buttons not on layertagview bounds. need set layertagview frame/size. in code size of layertagview (0,0). check suggestions can set maskstobounds yes or change background color layertagview blue or other color.

tagview.layer.maskstobounds = yes; layertagview.layer.maskstobounds = yes;