ios - UIButton with target:self not being sent to self? -

i'm creating new uiviewcontroller (call myviewcontroller), , adding view (myview) subview of tableviewcell. within myview , there's button. button created programmatically during myviewcontroller's init, such:

-(id)initwithframe:(cgrect)frame {     self = [super init];     if(self) {         [self.view setframe:frame];          _yesbutton = [[uibutton alloc] initwithframe:cgrectmake(frame.size.width-150, 40, 140, 30)];         [_yesbutton settitle:@"yeah!" forstate:uicontrolstatenormal];         [_yesbutton addtarget:self action:@selector(didclick) forcontrolevents:uicontroleventtouchupinside];         [self.view addsubview:_yesbutton];     }     return self; } 

now, seems straightforward. displays properly, looks great in simulator.

but when click on "_yesbutton" within myview, crash error:

-[_uitableviewcellseparatorview didclick]: unrecognized selector sent instance 0x7b7f7ec0 

what? when did "_uitableviewcellseparatorview" come equation? told _yesbutton set target "self", selector should sent myviewcontroller, right? imagine getting tripped , sending uitableviewcell, since myview embedded within tableviewcell, why seperatorview?

can tell me how _yesbutton send call myviewcontroller it's being created within? , bonus points, can explain how "_uitableviewcellseparatorview" became thing in conversation @ all?

edit: here's how i'm building cell in tableview, , adding myview it. note i'm deliberately not using dequeuing row, although might change if it's source of problem.

uitableviewcell *cell = [[uitableviewcell alloc] initwithstyle:uitableviewcellstyledefault reuseidentifier:@"myviewcell"];  myviewcontroller *myviewcontroller = [[myviewcontroller alloc] initwithframe:cell.contentview.frame]; [cell.contentview addsubview:myviewcontroller.view];  return cell; 

and didclick method empty, (it never gets there, haven't gotten far in writing it), it's defined within myviewcontroller as:

-(void)didclick {  } 

solution #1

actually because myviewcontroller not retain arc. dealloc method id being called. add ans instance of controller in uitableviewcontroller fix issue , make arc retains controller.

solution #2

try this.

create custom uitableviewcell :

mycustomcell.h :

#import <uikit/uikit.h>  @interface mycustomcell : uitableviewcell  @property (strong, nonatomic) uibutton *yesbutton;  -(id)initwithframe:(cgrect)frame;  @end 

mycustomcell.m :

#import "mycustomcell.h"  @implementation mycustomcell  - (void)setselected:(bool)selected animated:(bool)animated {     [super setselected:selected animated:animated];      // configure view selected state }  -(id)initwithframe:(cgrect)frame {     self = [super init];     if(self) {        [self.view setframe:frame];         _yesbutton = [[uibutton alloc] initwithframe:cgrectmake(frame)];        [_yesbutton settitle:@"yeah!" forstate:uicontrolstatenormal];        [self.contentview addsubview:_yesbutton];     }     return self; } @end 

in uitableviewcontrollerin viewdidload function :

[self.tableview registerclass:[mycustomcell class] forcellreuseidentifier:cellidentifier]; 

then in tableview:cellforrowatindexpath:

mycustomcell *cell = [tableview dequeuereusablecellwithidentifier:cellidentifierr forindexpath:indexpath]; if (cell == nil) {      cell = [[mycustomcell alloc] initwithframe:frame];      [cell.yesbutton addtarget:self action:@selector(didclick) forcontrolevents:uicontroleventtouchupinside]; } 

and implement following in uitableviewcontroller:

-(void)didclick {    // following identify in cell action has been triggered    nsset *touches = [event alltouches];    uitouch *touch = [touches anyobject];    cgpoint currenttouchposition = [touch locationinview:self.tableview];    nsindexpath *indexpath = [self.tableview indexpathforrowatpoint: currenttouchposition];    if (indexpath != nil)    {     // whatever want given cell    } }