objective c - Where's the memory leak? -

i'm adding custom view tableheaderview following code:

imagebutton = [uibutton buttonwithtype:uibuttontyperoundedrect];     imagebutton.frame = cgrectmake(120, 12, 64, 64);     imagebutton.titlelabel.font = [uifont systemfontofsize:10];     imagebutton.titlelabel.linebreakmode = uilinebreakmodewordwrap;     imagebutton.titlelabel.textalignment = uitextalignmentcenter;     [imagebutton settitle:nslocalizedstring(@"choose\nphoto", @"choose\nphoto") forstate:uicontrolstatenormal];     [imagebutton addtarget:self action:@selector(photobuttonpressed) forcontrolevents:uicontroleventtouchupinside];      // add existing image, if any, button     if (child.thumbnailimage != nil) {         [imagebutton setbackgroundimage:child.thumbnailimage forstate:uicontrolstatenormal];     }      // add button view     self.headerview = [[uiview alloc] initwithframe:cgrectmake(22, 12, 70, 70)];     [headerview addsubview:imagebutton];      // add view table header     self.tableview.tableheaderview = headerview; 

the memory leak showing on alloc line above headerview uiview. i'm declaring uiview , uibutton in header file , releasing in viewdidunload , dealloc, i'm not sure i'm doing wrong. also, showing on device , not simulator (just thought i'd mention).

any appreciated.

thanks,

rod

you're using headerview setter method (self.headerview) need release uiview instance assign headerview property, either using release or autorelease.

e.g.

uiview* newheaderview = [[uiview alloc] initwithframe...]; self.headerview = newheaderview; [newheaderview release]; 

or

self.headerview = [[[uiview alloc] initwithframe:...] autorelease]; 

the reason because headerview setter method automatically retains object assigned it.

alternatively, can set headerview instance variable directly, without using property setter method:

[headerview release]; // release existing object headerview = [[uiview alloc] initwithframe:...];