Getting tableView to scroll as one with parent scrollView after being added with addChildViewController

Getting tableView to scroll as one with parent scrollView after being
added with addChildViewController

I'm working through a tutorial on child view controllers in RubyMotion.
(What I'm trying to do is create a tabbed interface in the likes of
Instagram's profile pages.) I have things working, however my problem is
that my container has a scrollView and the child I'm adding is a
tableView, which is itself a scrollView. The two scroll independent of
each other, where I'd like them to scroll as one. Is there a way I can do
that given my code below?
My container:
class ProfileController < SharedController
def viewDidLoad
super
scroll_frame = self.view.bounds
@scroll = UIScrollView.alloc.initWithFrame(scroll_frame)
@scroll.bounces = true
@scroll.delegate = self
@scroll.alwaysBounceVertical = true
@scroll.contentSize =
CGSizeMake(UIScreen.mainScreen.bounds.size.width,
scroll_frame.size.height)
main_container = UIViewController.alloc.init
self.push(main_container)
end
def tap_child(sender)
set_active_tab(sender)
controller =
ChildPartialController.alloc.initWithNibName(nil, bundle:nil)
controller.data = @data[:child]
controller.parent = self
controller.scroll_view = @scroll
self.push(controller)
end
end
The child:
class ChildPartialController < SharedController
attr_accessor :data, :scroll_view, :parent
def viewDidAppear(animated)
scroll_view.contentSize =
CGSizeMake(UIScreen.mainScreen.bounds.size.width, 272)
end
def viewDidLoad
super
self.title = "Cred"
@data = data
@table = UITableView.alloc.initWithFrame(
CGRectMake(0, parent.tab_bar.frame.origin.y +
parent.tab_bar.frame.size.height, self.view.bounds.size.width,
self.view.bounds.size.height),
style: UITableViewStyleGrouped
)
@table.autoresizingMask = UIViewAutoresizingFlexibleHeight
@table.rowHeight = 30
parent.view.addSubview(@table)
@table.dataSource = self
@table.delegate = self
end
end
SharedCode:
class SharedController < UIViewController
def push(to_vc, animated = false)
from_vc = self.stack[-1] # could be nil
self.stack.pop if self.stack.count > 1
self.stack.push(to_vc)
self.addChildViewController(to_vc)
post_animate = lambda { |finished|
to_vc.didMoveToParentViewController(self)
to_vc.viewDidAppear(animated)
}
if !from_vc.nil?
to_vc.view.frame = child_frame
to_vc.viewWillAppear(animated)
end
@scroll.addSubview(to_vc.view)
post_animate.call(true)
p self.stack.count
end
def child_height
self.view.bounds.size.height - 232
end
def child_width
self.view.bounds.size.width
end
def child_frame
CGRectMake(0, self.tab_bar.frame.origin.y +
self.tab_bar.frame.size.height + 10, child_width, child_height)
end
def offscreen_top_frame
CGRectMake(0, 50 - child_height, child_width, child_height)
end
def offscreen_bottom_frame
CGRectMake(0, self.view.bounds.size.height, child_width, child_height)
end
end