ios - removing uinavigationbar title margins -

i modified navigation bar follows in app delegate:

 nsdictionary *settings = @{                             uitextattributefont                 :  [uifont fontwithname:@"impact" size:36.0],                            uitextattributetextcolor            :  [uicolor whitecolor],                            uitextattributetextshadowcolor      :  [uicolor clearcolor],                            uitextattributetextshadowoffset     :  [nsvalue valuewithuioffset:uioffsetzero]};  [[uinavigationbar appearance] settitletextattributes:settings]; 

but font cuts down larger font. :

i tried doing in viewwillappear of vc, :

 uiview *newtitleview = [[uiview alloc] initwithframe:cgrectmake(0, 0, 320, 44)]; [newtitleview setbackgroundcolor:[uicolor blackcolor]]; [self.navigationcontroller.navigationbar addsubview:newtitleview]; 

then going align title center. doesn't seems right. thing need remove margins @ top , bottom of title label. how go it.

try code , don't set settitletextattributes

uilabel *titleview = (uilabel *)self.navigationitem.titleview;     if (!titleview) {         titleview = [[uilabel alloc] initwithframe:cgrectzero];         titleview.backgroundcolor = [uicolor clearcolor];         titleview.font = [uifont boldsystemfontofsize:20.0];         titleview.shadowcolor = [uicolor colorwithwhite:0.0 alpha:0.5];          titleview.textcolor = [uicolor yellowcolor]; // change desired color         self.navigationcontroller.navigationitem.titleview = titleview;         [titleview release];     }     titleview.text = title;     [titleview sizetofit];