IOS Custom UITableViewCell child controls cannot accept events

3 hours of wasted time on this issue.

A description of the problem

There are two Uiimageview child controls in the custom Uitableviewcell,cell, which need to be double-clicked for the picture to be displayed globally.

Two error codes

-  (uitableviewcell *) TableView: (uitableview *) Tableview cellforrowatindexpath: (NSIndexPath  *) indexpath{   bzeffectimgviewcell *cell = [bzeffectimgviewcell  cellwithtableview:tableview];   uitapgesturerecognizer  *doublerecognizer =  [[UITapGestureRecognizer alloc]                                                   initWithTarget:self                                                  action:@ Selector (handlepinchgesturefrom:)                                                   ];     doublerecognizer.numberoftapsrequired = 2;     /*      * for  BZEffectImgViewCell  subspace  beforeimageview, but event monitoring is unsuccessful      */     [cell.beforeImageView addGestureRecognizer:doubleRecognizer];     return cell;    }

Three correct codes

-  (uitableviewcell *) TableView: (uitableview *) Tableview cellforrowatindexpath: (NSIndexPath  *) indexpath{   bzeffectimgviewcell *cell = [bzeffectimgviewcell  cellwithtableview:tableview];   uitapgesturerecognizer  *doublerecognizer =  [[UITapGestureRecognizer alloc]                                                   initWithTarget:self                                                  action:@ Selector (handlepinchgesturefrom:)                                                   ];     doublerecognizer.numberoftapsrequired = 2;     //settings   cell.afterimageview.userinteractionenabled = yes;       cell.afterimageview.userinteractionenabled = yes;    [cell.beforeimageview  addgesturerecognizer:doublerecognizer];    return cell;    }

IOS Custom UITableViewCell child controls cannot accept events