In this I need scroll complete tableview to upward and tableview should stay upwards until user again scrolls down. It should come back to its original position.
Update
I need to scroll the tableview top and bottom on a image
From Apple documentation it's not advisable to add tableView inside scrollview(Reference).
Now according to design of your screen either you can have one tableView and in header of that tableView you can add all static content.Reference
or if your design must have tableView inside scrollView then this SO question maybe helpful to you.
I'd prefer first choice if possible.
By the way if you can fix the height of tableView then you can implement tableView inside scrollView easily.
Related
In Swift, is there a way to change scrollview focus programatically? For example, in one of my scrollviews when a user is scrolling, after the scroll has gone past a certain distance I want the scroll to stop scrolling and to immediately scroll a tableview instead. I want this to all happen in the same motion/swipe, so I need to automatically shift the focus from the scrollview to the tableview using code. Is this possible?
Using Rikh's comment, I was able to solve this using a UITableView with multiple sections and custom UITableView headers. I can use the viewForHeaderInSection method to create a custom floating header which is exactly what I need and it scrolls much more smoothly.
I have a tableView and I have a UIView as the tableView header. I want the header to move up the screen when I scroll down and act just like any normal cell. But when I have reached the top of the view, where if I scroll up it will just bounce back, I want the tableView header to stick to the top.
One example is like the Facebook app headers. They scroll when you scroll, but if you're at the top of the page and you scroll up, they wont scroll down, they stay stuck to the top.
How do I achieve this?
If you're using a normal tableView (not grouped style) and you only have one section, you can accomplish this by using the section header instead. The default behaviour of this type of tableView is as you described. You'll just have to provide a custom view for the section header that looks like your cell.
If this isn't a possibility, you'll need to take advantage of tableView being a subclass of scrollView, and implement the scrollViewDidScroll delegate method to check content offsets etc.
I've been trying to replicate this effect for a couple days which was inspired by Tumblr.
I've previously asked questions on here with different approaches of the same problem but to no avail. I'm just curious as to how the engineers at Tumblr created a horizontal collection view, with two vertical collection views, and is able to scroll down without affecting the view above (without resetting the position of the view when you scroll vertically in a different tab).
Header Views
I tried this, but the header view was isolated and I had to scroll to the right to see the collectionView cells. This did not work.
Changing the topLayoutConstraint constant of my UIView (not cv header) with respect to the contentOffSet of the vertical collectionView.
This almost got the effect I wanted, except that when I scrolled horizontally, there was a huge gap between my collection view and if I scrolled in that new tab, the UIView would appear again because, again, topLayoutConstraint gets scrolled up depending on the contentOffSet of my vertical collectionView contentOffset.
Changing the position of the UICollectionView frame, and scrolling the super view up simultaneously with NSNotificationCenter.
Alas, this method did the same as method #2, except that the vertical collection view cells scrolled faster than the super view.
I ran out of options to make this work so I will show you in detail what's attempted to be replicated (also note the scroll bar on the right):
Note when I scroll down the first tab. I switch, and then scroll down further. Originally, as I've said, there would be a gap between the second main CV, and when I scrolled, the view would reposition as if were scrolling up again. On here, the view on top keeps going up. So I'm curious as to what method Tumblr engineers used to do this. UICollectionView inside UIScrollView? Other suggestions?
I believe there is no UICollectionView involved. It looks like UIPageViewController and each its page is a UITableView.
Perhaps the UIPageViewController sits in a UITableView as well - the header also moves up when you scroll. This main table has only one cell (and a header) which is occupied by the UIPageViewController.
Hope it helps.
I'm working on a application where I have a UITableView inside a UIScrollview.
The TableView will display current games players are in, its inside a UIScrollView. I dynamically add cells to the UITableView for each game, but when I scroll the UIScrollView, the tableview inside it snaps back to its size set in the storybuilder.
This is because of autolayout, when I disable it, it doesn't happen anymore. However I do like autolayout for other views in my app. So my question is, how can I fix this problem?
Maybe someone can help me get on the right track.
Thanks
EDIT
I think I must explain my situation more, I will use an image where I can display what is happening
Explanation
Before and after scrolling.
As you can see I use the scrollview because there can be many games, so you'll have to scroll down to see them all. The TableView is just to hold the data, scrolling is disabled on that. After scrolling the TableView that says "JOUW BEURT" snaps back to its size set in the Storybuilder. This is because of auto layout like I said, but I don't know how to fix this.
You shouldn't put a tableview inside a scrollview as a tableview itself contains a scrollview and causes issues just like you are seeing when you have a scrollview inside a scrollview.
Remove the scrollview and this should fix your issue. If you are wanting to put content above the tableview or where you scroll down to view the tableview cells etc, consider adding a tableview header view that is added above the tableview.
Why did you place UITableView inside UIScrollView?
Check below
Check your constraints of UITableView and UIScrollView
Placing UITableView inside UIScrollView is somewhat strange
EDIT
You will just need to remove the scrollview and enable scrolling feature of the tableview. that will fix it
UITableView is already a subclass of
UIScrollView
If you look at the Featured tab of the Apple App Store app on an iPhone 6, there is a unique UI layout that I can't figure out how to replicate.
At the very top there is a navigationBar. Below this there is a UIScrollView that animates through a number of featured items. Below this is what appears to be a UITableView with a number of custom programmed cells.
My first guess was that the UIScrollView at the top was added to a custom cell at the top of a UITableView. If you swipe up the UIScrollView moves with the objects below like it is a cell. You can see that the vertical scroll indicator starts at the top of the UIScrollView.
The part that is unique is that if you swipe down, the objects below the UIScrollView move down like a UITableView and the UIScrollView stays in place. This means that the UIScrollView is not a custom cell at the top of a UITableView.
I tried making this work a number of different ways but I can replicate this. Does anyone know how this can be done?
You can use a tableview header,the header is a scrollview
If you scroll tableview up,just use tableview default behavior,the header will scroll up.
If you scroll down,use UIScrollViewDelegate to calculate the tableview header new frame,and adjust it.So it remain at top
Not sure if I got you correctly, you may use UICollectionView as vertical scroll. Then, you create a custom UICollectionViewCell, each with horizontal scroll.
I haven't tried it though but done something similar to this. Hope you find a way!