Scroll TableView inside ScrollView

Question

I have a tableView inside a scrollView.

I want when I scroll tableView, the outer scrollView will also scroll.

Currently, when I scroll tableView, the outer scrollView not scroll.

So how to do this?

set tableview scrollEnabled to NO, and calculate again contain view height to fit tableview height — larva
– larva, Commented Sep 14, 2016 at 6:24
How much content will you show in the scrollView, can't you simple add a headerView to the tableView? — Aerows
– Aerows, Commented Sep 14, 2016 at 7:18
Here is just a sample, in my real project, it content a container view which can be switched to 4 modes. Content in scrollView is depend on the tableView inside it. — Twitter khuong291
– Twitter khuong291, Commented Sep 14, 2016 at 7:20

Vishnuvardhan · Accepted Answer · 2016-09-14 06:20:42Z

1

//Declare the view which is going to be added as scrolling view, for instance

let requiredView = UIScrollView()

//Add your required view as subview of tableview backgroundView view like as

tableView.backgroundView = UIView() 
tableView.backgroundView?.addSubview(requiredView)

//After that control the frame of requiredHeaderView in scrollViewDidScroll delegate method like

func scrollViewDidScroll(scrollView: UIScrollView) {
         let per:CGFloat = 60 //percentage of required view to move on while moving collection view
                let deductValue = CGFloat(per / 100 * requiredView.frame.size.height)
                let offset = (-(per/100)) * (scrollView.contentOffset.y)
                let value = offset - deductValue                   
                self.requiredView.contentOffset = CGPointMake(1.0, value)
        }

answered Sep 14, 2016 at 6:20

Vishnuvardhan

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6 Comments

Twitter khuong291 Over a year ago

When I scroll tableView, the outer scrollView not scroll.

Vishnuvardhan Over a year ago

If your not set the contentSize for the scrollView try to set like this requiredView.contentSize = CGSizeMake(320, 500)

Twitter khuong291 Over a year ago

I've already set the contentSize for the scrollView in storyBoard.

Vishnuvardhan Over a year ago

post code about how you tried. That way I can extend my help.

Vishnuvardhan Over a year ago

where you tried my answer?, scrollViewDidScroll method contains different of my posted answer. In my answer "value" in scrollViewDidScroll method is the contentOffset.y value to move the scrollview. That way you can scroll the scroll view accordingly.

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