iphone - Full Screen UIScrollView not working Correctly -

i have application photos app main view uiscrollview takes full size of screen. also, photos app, when user taps screen there translucent navigation, status, , tool bars reappear / disappear.

i having problem setting uiviewcontrollers main view uiscrollview , having take full length of screen. problem when navigation , status bars shown, uiscrollview gets pushed down height of navigation , status bars (it doesn't go underneath them it's suppose to). when user taps screen , navigation / status bars disappear, resets take full length of screen it's suppose to.

a simple work around of setting main view uiview , attaching uiscrollview on top of works. however, i'd try , work without workarounds (ie adjusting uiscrollviews contentinset, etc) because in theory should work.

below code i'm implementing:

- (void)loadview {      self.wantsfullscreenlayout = yes;      uiscrollview *scrollview = [[uiscrollview alloc] initwithframe: cgrectmake(0,0,320,480)];     scrollview.contentsize = cgsizemake(320, 480);     scrollview.scrollenabled = no;     scrollview.contentoffset = cgpointzero;     scrollview.bounces = no;     self.view = scrollview;     [scrollview release];  }  - (void) viewwillappear:(bool)animated {     [super viewwillappear:animated];      self.navigationcontroller.navigationbar.translucent = yes;     [[uiapplication sharedapplication] setstatusbarstyle: uistatusbarstyleblacktranslucent animated: no];     self.navigationcontroller.toolbarhidden = no;     self.navigationcontroller.toolbar.barstyle = uibarstyleblack;     self.navigationcontroller.toolbar.translucent = yes;      [self starttimer]; }  - (void) viewwilldisappear:(bool)animated {     [super viewwilldisappear:animated];      self.navigationcontroller.navigationbar.translucent = no;     [[uiapplication sharedapplication] setstatusbarstyle: uistatusbarstyledefault animated: no];      [self canceltimer]; } 

update: i've noticed it's contentoffset , contentinset changing, not scrollviews frame. when bars have disappeared , uiscrollview full size of screen (as should be), contentoffset , contentinset follows:

content offset: {0, -20} content inset: {20, 0, 44, 0} 

when bars visible , uiscrollview pushed down, contentoffset , contentinset follows:

content offset: {0, -64} content inset: {64, 0, 44, 0} 

i solved similar issue on ios7 after reading apple's ui transition guide: https://developer.apple.com/library/ios/documentation/userexperience/conceptual/transitionguide/appearancecustomization.html

it turns out uiviewcontroller has automaticallyadjustsscrollviewinsets boolean property. default true, disabling made uiscrollview fill entire window, instead of being pushed down.