ios - Set UINavigationItem title before viewWillAppear -

this point: i'm writing app "builds itself" reading configuration file. need create uitabbarcontroller contains several uinavigationcontrollers respective rootviewcontroller. since app doesn't know viewcontroller titles, need programmatically set them (from appdelegate) before viewwillappear: method fired.

if set title in viewwillappear method, first v.c. in tabbarviewcontroller show name in tabbar.

what's proper way this?

based on many assumptions trying achieve, think doing in application:didfinishlaunchingwithoptions: method of appdelegate should work:

uitabbarcontroller *cont = [[uitabbarcontroller alloc] init];  (int i=0; i<controllers_count; i++) {     uinavigationcontroller *navcont = [[uinavigationcontroller alloc] init];     navcont.title = title_here;     [cont addchildviewcontroller:navcont]; }  [self.window setrootviewcontroller:cont];