iphone - Problem with UIPopOverController shrinking in width when navigationController pushes a new view(screenshots included) -

ok have view call homeview. when button pushed on homeview, uipopovercontroller presented in following way:

self.studypicker = [[[studypickercontroller alloc] initwithstudyarray:self.studyarray viewnum:butto.tag] autorelease];      uinavigationcontroller *navcontroller = [[uinavigationcontroller alloc]  initwithrootviewcontroller:self.studypicker];      _studypicker.delegate = self;     self.studypickerpopover = [[[uipopovercontroller alloc] initwithcontentviewcontroller:navcontroller] autorelease];                     [self.studypickerpopover presentpopoverfromrect:cgrectmake(955,60, 22,10) inview:self.view permittedarrowdirections:uipopoverarrowdirectionany animated:yes]; 

which works great. nice big popover controller displays tableview data way need it. fyi, in studypickercontroller viewdidload method, setting this:

    self.contentsizeforviewinpopover = cgsizemake(1000.0, 610.0); 

which allows me make size of tableview nice , big. the problem experiencing after select row in first tableview. navigationcontroller pushes new view fine, width of popover controller gets cut in half! doesn't make sense! have tried , can't figure out going on. in new view, called screenview, has same code in viewdidload:

    self.contentsizeforviewinpopover = cgsizemake(1000.0, 610.0); 

an interesting observation i've made don't know if take out contentforsize code second view in tableview, or 1 trying push within controller, when pushes, gets cut in half again, width of standard popover controller see in safari. adding code in makes 2 times wide, there 2 glued or something, still more narrow original width.

i don't know what's going on here, can me out!

thanks

here image of width should stay:

and here after pushes new view:

for each view presenting in uipopovercontroller, set property contentsizeforviewinpopover

for example:

myviewcontroller.contentsizeforviewinpopover = cgsize(120.0f, 320.0f);

you need account size of uinavigationbar (that uinavigationbar) inside uipopovercontroller overall controls stretching , contracting of uipopovercontroller.