iphone - [UIDeviceRGBColor set]: message sent to deallocated instance -

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i developing application instagram. have code cellforrowatindexpath, every time creates object unbutton , autorelease. button display username , may 1,2,3,4,5,.. total users. there create uibutton on depend on cout. not using arc.

but crash (not everytime) when setcolour.

i enabled nszombie , keeps saying:

[uidevicergbcolor set]: message sent deallocated instance 0x21b526f0

            uibutton *btnlikeusername = [[[uibutton alloc] init] autorelease];                 [btnlikeusername.titlelabel setfont:[uifont boldsystemfontofsize:12]];                  if (posx + size.width > 280) {                     posy = posy + 22;                     posx = 18;                     btnlikeusername.frame = cgrectmake(posx,posy,size.width,size.height);                     posx = posx + size.width + 5;                 }                 else {                     btnlikeusername.frame = cgrectmake(posx,posy,size.width,size.height);                     posx = posx + size.width + 5;                 }                 btnlikeusername.tag = shareobju.userid;                 [btnlikeusername settitle:text forstate:uicontrolstatenormal];                 [btnlikeusername settitlecolor:[uicolor colorwithred:50/255.0 green:79/255.0 blue:133/255.0 alpha:1.0] forstate:uicontrolstatenormal]; ////hear crash                 [btnlikeusername addtarget:self action:@selector(btnlikeusernameclick:) forcontrolevents:uicontroleventtouchupinside];                 [cell.viewlikecomment addsubview:btnlikeusername];

i see following link

uiswitch setthumbtintcolor causing crash (ios 6 only)?

1 out of 4 colors return errors

ios app crashes when using colorwithred:green:blue:alpha

and other .. says global objct. not local object. how can solved it. thank you

try code...

[btnlikeusername settitlecolor:[uicolor colorwithred:((float) 50 / 255.0f)                              green:((float) 79 / 255.0f)                               blue:((float) 133 / 255.0f)                              alpha:1.0f] forstate:uicontrolstatenormal];

or can set uicolor bellow.

[btnlikeusername settitlecolor:[uicolor colorwithred:50.0f/255.0f green:79.0f/255.0f blue:133.0f/255.0f alpha:1.0] forstate:uicontrolstatenormal];

and here add uibuttons in every cell try define bellow not alloc , autorelease everytime .....

   uibutton *button = [uibutton buttonwithtype:uibuttontypecustom];

*update:*see example add in every cell multiple button gridview

 uibutton *button = [uibutton buttonwithtype:uibuttontypecustom];  button.frame = rect;  button.tag = imageindex;  [button addtarget:self  action:@selector(btntemp_clicked:)                  forcontrolevents:uicontroleventtouchdown];   [button settitle:[arrtime objectatindex:imageindex] forstate:uicontrolstatenormal];  [button.titlelabel setfont:[uifont fontwithname:@"helvetica-bold" size:12]];   //[button settitlecolor:[uicolor colorwithpatternimage:[uiimage imagenamed:@"circle03.jpg"]] forstate:uicontrolstatenormal ];                  [button settitlecolor:[uicolor colorwithred:50.0f/255.0f green:79.0f/255.0f blue:133.0f/255.0f alpha:1.0] forstate:uicontrolstatehighlighted ];   [button setneedsdisplay];   [gridcell.contentview addsubview:button];

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