ios - Auto Layout for UIScrollView w/ 2 Child Views -

i have scroll view that's set inside storyboard auto layout constraints fills entire view. scroll view contains 2 views managed uiviewcontrollers instantiated nibs. code include these subviews:

- (void)viewdidload { [super viewdidload]; contentviewcontroller *contentvc = [contentviewcontroller new]; [[nsbundle mainbundle] loadnibnamed:@"contentview" owner:contentvc options:nil];  self.scrollview.delegate = self; [self addchildviewcontroller:contentvc]; [self.scrollview addsubview:contentvc.contenttc.view]; [contentvc didmovetoparentviewcontroller:self]; [self addchildviewcontroller:contentvc.contenttc];  self.view.layer.bordercolor = [[uicolor blackcolor] cgcolor]; self.view.layer.borderwidth = 5.0; self.scrollview.layer.bordercolor = [[uicolor bluecolor] cgcolor]; self.scrollview.layer.borderwidth = 5.0; cgrect adminframe = contentvc.view.frame; adminframe.origin.x = adminframe.size.width;  shareviewcontroller *shareviewcontroller = [[shareviewcontroller alloc] initwithnibname:@"shareview" bundle:nil]; [self addchildviewcontroller:shareviewcontroller]; [self.scrollview addsubview:shareviewcontroller.view];  shareviewcontroller.view.frame = adminframe;   cgrect shareframe = shareviewcontroller.view.frame; shareframe.origin.x = shareframe.size.width;  [self.view addsubview:self.scrollview];  [self.view addconstraint:[nslayoutconstraint constraintwithitem:self.scrollview                                                        attribute:nslayoutattributeright                                                        relatedby:nslayoutrelationequal                                                           toitem:self.view                                                        attribute:nslayoutattributeright                                                       multiplier:1.0                                                         constant:0]];  [self.view addconstraint:[nslayoutconstraint constraintwithitem:self.scrollview                                                        attribute:nslayoutattributebottom                                                        relatedby:nslayoutrelationequal                                                           toitem:self.view                                                        attribute:nslayoutattributebottom                                                       multiplier:1.0                                                         constant:0]];   // 4) set size of scroll view contains frames cgfloat scrollwidth  = 2 * self.view.frame.size.width; cgfloat scrollheight  = self.view.frame.size.height; self.scrollview.contentsize = cgsizemake(scrollwidth, scrollheight); self.scrollview.pagingenabled = yes; self.scrollview.showshorizontalscrollindicator = no; self.scrollview.bounces = no; 

don't have ability post image, here's link looks like:

dropbox.com/s/e84ya3ffrdzytac/screenshot%202015-08-19%2011.52.15.png

in iphone 6+ simulator, scrollview smaller in both width , height window, there's white space on right , bottom.

in iphone 4s simulator, width correct, subviews longer window, means they'll scroll down. works in iphone 5, though of views inferred , not set 4-inch screens.

apologies if redundant question, i've been searching through , banging head against wall 2 days now, appreciated.

** edit: updated code , behavior: **

- (void)viewdidload { [super viewdidload]; contentviewcontroller *contentvc = [contentviewcontroller new]; [[nsbundle mainbundle] loadnibnamed:@"contentview" owner:contentvc options:nil];  self.scrollview.delegate = self; self.scrollview.pagingenabled = yes; self.scrollview.showshorizontalscrollindicator = no; self.scrollview.bounces = no; self.scrollview.translatesautoresizingmaskintoconstraints = no;  [self.view addsubview:self.scrollview];  uiview *contentview = [[uiview alloc] initwithframe:cgrectmake(0, 0, self.view.frame.size.width * 2, self.view.frame.size.height)]; [self.scrollview addsubview:contentview];  [self addchildviewcontroller:contentvc]; [contentview addsubview:contentvc.contenttc.view]; [contentvc didmovetoparentviewcontroller:self]; [self addchildviewcontroller:contentvc.contenttc];  cgrect adminframe = contentvc.view.frame; adminframe.origin.x = adminframe.size.width;   shareviewcontroller *shareviewcontroller = [[shareviewcontroller alloc] initwithnibname:@"shareview" bundle:nil]; [self addchildviewcontroller:shareviewcontroller]; [contentview addsubview:shareviewcontroller.view];  shareviewcontroller.view.frame = adminframe;  self.view.layer.bordercolor = [[uicolor blackcolor] cgcolor]; self.view.layer.borderwidth = 3;  self.scrollview.layer.bordercolor = [[uicolor bluecolor] cgcolor]; self.scrollview.layer.borderwidth = 5;  contentview.layer.bordercolor = [[uicolor greencolor] cgcolor]; contentview.layer.borderwidth = 7;   cgrect shareframe = shareviewcontroller.view.frame; shareframe.origin.x = shareframe.size.width;  [self.scrollview addconstraints:[nslayoutconstraint constraintswithvisualformat:@"v:|[v]|" options:0 metrics:nil views:@{@"v" : contentview}]]; [self.scrollview addconstraints:[nslayoutconstraint constraintswithvisualformat:@"h:|[v]|" options:0 metrics:nil views:@{@"v" : contentview}]]; 

results: dropbox.com/s/29zwwn6inmdvz0e/screenshot%202015-08-19%2014.27.47.png?dl=0 , dropbox.com/s/rqsdk9yubq84ph6/screenshot%202015-08-19%2014.28.14.png?dl=0

here's image of constraints storyboard: dropbox.com/s/8c5wkfw81sqd8ij/screenshot%202015-08-19%2014.28.47.png?dl=0 (pinning edges superview)

bound scrollview left,right,top , bottom fine.

and like..

here code written yours

• (void)viewdidload

{

[super viewdidload];  uiviewcontroller *contentvc = [[uiviewcontroller alloc]init]; contentvc.view.backgroundcolor = [uicolor greencolor]; self.scrollview.delegate = self; [self addchildviewcontroller:contentvc]; [self.scrollview addsubview:contentvc.view]; [contentvc didmovetoparentviewcontroller:self]; [self addchildviewcontroller:contentvc];  self.view.layer.bordercolor = [[uicolor blackcolor] cgcolor]; self.view.layer.borderwidth = 5.0; self.scrollview.layer.bordercolor = [[uicolor bluecolor] cgcolor]; self.scrollview.layer.borderwidth = 5.0; cgrect adminframe = contentvc.view.frame; adminframe.origin.x = adminframe.size.width;  uiviewcontroller *shareviewcontroller = [[uiviewcontroller alloc] init]; shareviewcontroller.view.backgroundcolor = [uicolor graycolor]; [self addchildviewcontroller:shareviewcontroller]; [self.scrollview addsubview:shareviewcontroller.view];  shareviewcontroller.view.frame = adminframe;   cgrect shareframe = shareviewcontroller.view.frame; shareframe.origin.x = shareframe.size.width;  [self.view addsubview:self.scrollview];  [self.view addconstraint:[nslayoutconstraint constraintwithitem:self.scrollview                                                       attribute:nslayoutattributeright                                                       relatedby:nslayoutrelationequal                                                          toitem:self.view                                                       attribute:nslayoutattributeright                                                      multiplier:1.0                                                        constant:0]];  [self.view addconstraint:[nslayoutconstraint constraintwithitem:self.scrollview                                                       attribute:nslayoutattributebottom                                                       relatedby:nslayoutrelationequal                                                          toitem:self.view                                                       attribute:nslayoutattributebottom                                                      multiplier:1.0                                                        constant:0]];   // 4) set size of scroll view contains frames cgfloat scrollwidth  = 2 * self.view.frame.size.width; cgfloat scrollheight  = self.view.frame.size.height; self.scrollview.contentsize = cgsizemake(scrollwidth, scrollheight); self.scrollview.pagingenabled = yes; self.scrollview.showshorizontalscrollindicator = no; self.scrollview.bounces = no; 

}