ios - Subclassing UIToolbar and overriding drawRect: - UIBarButtonItems NOT displaying -

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context

i'm using 'initwithnavigationbarclass' method initialize uinavigationcontroller custom toolbar, here line alloc init uinavigationcontroller

navigationcontroller = [[uinavigationcontroller alloc] initwithnavigationbarclass:nil toolbarclass:[questiontoolbar class]];

is class, "questiontoolbar", subclass uitoolbar , override drawrect, here drawrect method:

    - (void)drawrect:(cgrect)rect     {       [super drawrect:rect];       uiimage *backgroundimage = [uiimage imagenamed:@"44px_background_red.png"];       [backgroundimage drawinrect:cgrectmake(0, 0, self.frame.size.width, self.frame.size.height)];     }

here pertinent code in viewcontroller attempt add uibarbuttonitems

uibarbuttonitem *spacer = [[uibarbuttonitem alloc] initwithbarbuttonsystemitem:uibarbuttonsystemitemflexiblespace target:nil action:nil]; uibarbuttonitem *beginitem = [[uibarbuttonitem alloc] initwithtitle:@"begin quiz" style:uibarbuttonitemstyleplain target:self action:@selector(beginaction:)];  [beginitem settitletextattributes:[nsdictionary dictionarywithobjectsandkeys: [uicolor whitecolor], uitextattributetextcolor,nil] forstate:uicontrolstatenormal];  nsarray *items = [nsarray arraywithobjects:spacer, beginitem, spacer, nil]; [self.navigationcontroller.toolbar setitems:items];  [self.navigationcontroller settoolbarhidden:no];

problem

how go adding uibarbuttonitems toolbar don't show-up when try add them?

i assume it's overriding drawrect

i tried myself custom uitoolbar , problem not -(void)drawrect:(cgcrect)rect.

i don't know wehere try add buttons on uitoolbar should try add them in -(void)viewdidappear method of uiviewcontroller class. in way worked me.


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