iphone - running ios4.2 app on on simulator is OK, on devices, a NIB view is blank -

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i developed iphone app in xcode 3.2.5. know version of xcode comes sdk 4.2. while testing app, set active executable ipad simulator 3.2., when executable run, 1 of views in app in blank (white), uinavigationcontroller nav bar still visible though.

this blank view happens 1 loaded nib file, other (working) views programmatically generated.

i set ios deployment target ios 3.2 in build settings.

is there reason problem? view simple, few buttons, labels , uiwebview.

edit: view constructed in ib. fwiw there handful of images in view also

update: i've since run app on devices (ipad 4.2 & iphone 3.1) same problem, particular view appears white.

in response comments; in ib set file's owner's class view controller set viewcontroller's view root view (in case uiscrollview) connecting 'dot' uiscrollview.

i don't have init method view controller, below viewdidload method.

- (void)viewdidload{ [super viewdidload];  uibarbuttonitem *addbutton = [[uibarbuttonitem alloc] initwithbarbuttonsystemitem:uibarbuttonsystemitemaction target:self action:nil]; self.navigationitem.rightbarbuttonitem = addbutton; self.navigationitem.title=[programme caocode]; [addbutton release];    nsmutablestring *subtitle=[nsmutablestring  stringwithstring:[programme caocode]]; [subtitle appendstring:@" "]; [subtitle appendstring:[programme awardtype]]; [subtitle appendstring:@" in"];  [subtitle settext:subtitle]; [maintitle settext:[programme title]];    btncurrenttab=aboutthisprogramme; // startup active tab   [details loadhtmlstring:[self getoverviewhtml]  baseurl:[nsurl fileurlwithpath:  [[nsbundle mainbundle] bundlepath]]];   }

finally, code instantiates problematic controller (from tableviewcontroller)

- (void)tableview:(uitableview *)tableview didselectrowatindexpath:(nsindexpath *)indexpath {  // create , push detail view controller. programmeviewcontroller *programmeviewcontroller = [programmeviewcontroller alloc]; programme *selectedprog = (programme *)[[self fetchedresultscontroller] objectatindexpath:indexpath];  // pass selected course new view controller. programmeviewcontroller.programme = selectedprog;  [self.navigationcontroller pushviewcontroller:programmeviewcontroller animated:yes]; [programmeviewcontroller release]; }

the problem in line

programmeviewcontroller *programmeviewcontroller =    [programmeviewcontroller alloc];

if loading nib file should like

programmeviewcontroller *programmeviewcontroller =    [[programmeviewcontroller alloc] initwithnibname:@"mynibname" bundle:nil];

"mynibname" should file name of nib without .xib file extension. make sure of course nib file included in build.


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