I have Viewcontroller in which I set the scrollview. In the scrollview I have tableview which is in the Container and just below the container I have an textview and some other UIViews when I set the tableview frame size equal to content size and tableview scroll property false so that only scrollview scrolls when the content size increase the textview goes up to tableview and I want that when tableview content increase then textview also goes down and parent view frame size increase and decrease as the content size
This look like a job for a UICollectionViewController. If you want to take a look here
you can get a better understanding of what they are and how to use them.
Basically you want to put each of those UITableViews, UILabels and the UIButtons in it's own cell(buttons need to be arranged) of the collectionView then the cell with the buttons try to use a stack view with the image. This will automatically set the different sections apart from each other. I know the idea of a collectionViewCell containing a tableView may seem weird but check this out
Another solution is to get crazy with constraints and autoLayout. I don't recommend this route because autoLayout will make decisions on it's own if the exact layout is not explicitly declared. Basically you'll set the constraints by pinning the tableView and labels to each other and the container they are in.
Checkout Apple's docs here
Good luck and let me know how it goes
I would recommend using a xib (if storyboards is your preference) or programmatically embed a tableview in the Scrollview Controller. Set a default cell height and then calculate the height of the Tableview by grabbing the amount of cells (which you'll normally get from .count in an array).
Afterwards, constrain the top, left, and right constraints of the tableview to its parent. You can imbed these in a scroll view for ease. Then if you want default text underneath it, all you have to do is constrain the top of the textview to the bottom of the tableview.
Do the cell for the button's. As the post above said, buttons might be best done in a CollectionView, so you can either create a default cell (xib again is useful) or use a prototype cell in storyboard. Collection views are the same principle as tableviews when it comes to populating data, they are just formatted differently and insets/spacing between cells.
This should help!
TL;DR: What's the best way to layout over-sized scroll-view content in Interface Builder?
I am trying to figure out the least painful way to layout offscreen / scrolling content in Interface Builder. My current approach has been to tweak scrollview content width and height constraints to see all content in IB, before reverting to proper contraints for building, but this gets to be a hassle. That said, I would prefer to do more more graphically, and less programmatically for general ease of editing.
The general approaches that I can think of are:
use embedded segues to build up views in a size-accurate fashion (the most intuitive, flow-charty approach)
tweak constraints for editing, reset for building
use placeholder values / constraints in IB (haven't tried this yet)
layout over-sized content programmatically
In more detail, I am trying to build a vertically scrolling view comprised of sub views. Each sub view is self contained and can potentially appear in more than one context and I would like to keep them isolated (in fact, I am embedding them as well, but that does not affect the question). What I would like to do, is use IB to layout a tall composite content view. I would then like to create the outer scroll view with a single content view again of a container view, embedding the composite content view. Ie. the grey content view on the left embeds the taller red / blue content on the right, and I am wondering if I can deduce the height, so it could be device agnostic (the views are square, so they will take their width from the device)
So summarized, is there anyway that I could derive the hosting scrollview's contentView height from the actual height of the content of the embedded view, or should I instead use approaches 2, 3, or other?
To be clear, Auto Layout requires that scroll view content views define constraints for the edges, and width / height dimensions. In my case, I would like to be able to preset the width to the device width, but leave the height to be derived from the red/blue content view. IB won't let me drag constraints between the embedding and embedded scenes in Storyboard, and when I leave the field missing, it uses the prototype values for the content height.
Is it recommended to use placeholder sizes (3) in IB to make the content visible for editing, knowing that run-time constraints will render it properly (ie over-size scroll views in Storyboard so all scrolling content is visible)? Conversely, is it foolish to even try - should I do all scroll-view content composition programmatically (4)?
Thanks in advance.
Edit:
Placeholder constraints allow you to get by, but force you to change the priority of the run-time constraints, and trigger IB / layout errors and warnings for conflicting constraints, despite selecting the placeholder checkbox on conflicting design-time-only constraints.
Use a UITableviewController with static cells. The cells will be your content views.
You can scroll the tableview down in IB to see the cells at the bottom and you get a nice extra behaviour like scrolling the views to the correct position when the keyboard is opened so it doesn't hide the textfield you clicked on.
And you don't have to worry about the scroll view at all.
If you want to reuse your content views you can make the table dynamic of course and provide the content views by code.
I made a UICollectionView with a vertical scroll.
The width of the cell is more than than the screen width, so I created a customFlowLayout based on UICollectionViewFlow layout returning the right calculated content size.
However, this doesn't work. When the width of the cell is less than the screen width it works. Does it mean that we can't have width more than than screen width in vertical scroll?
It is the same for horizontal scroll, but then the height of the CollectionView is limited to screen height.
Is there any way to make it work?
As others have already said, the UICollectionView can only scroll one direction using a flow layout. However you can accomplish this very easily without creating a custom layout or using a third party library.
When you lay your view out in story board, you can put your UICollectionView embedded in a UIScrollView. Have the scrollview set up to scroll horizontally and the UICollectionView to scroll Vertically. Then set the UICollectionView.delaysContentTouchesto true so touches will pass through to the UIScrollView and not think you are trying to scroll the collectionview.
When you set up the UICollectionView, set it's size and the size of the cells to be what you actually want them to be (Wider than the actual screen) and lay them out accordingly.
Now in the containing UIViewController put this code in the view lifecycle
- (void)viewDidLayoutSubviews {
self.myScrollView.contentSize = self.myCollectionView.frame.size;
}
That's literally all you have to do to accomplish what you are describing. Now your scrollview should allow you to scroll horizontally to view your entire cell and your collectionView should scroll vertically through your cells.
Happy programming.
I'm not sure I've understood your problem.
But if you have made a custom layout, make sure you have implemented :
- (UICollectionViewLayoutAttributes *)layoutAttributesForItemAtIndexPath:(NSIndexPath *)indexPath;
and that your layout attributes frame and size are set with correct values for your "large cell" index path.
Also make sure you have implemented :
- (CGSize) collectionViewContentSize;
This method returns the contentSize of the collection View. If contentSize.width > youAppFrame.width you should have horizontal scrolling. Same for height and vertical scrolling.
Also make sure your collectionView allows scrolling and that your layout is prepared correctly using :
- (void)prepareLayout
By the way, for your layout have you overloaded UICollectionViewLayout or UICollectionViewFlowLayout ?
Before you can do that you MUST use a different type of layout. The flow layout represents its items as a list and it spans these items in cells based on the available width.
If you want to have both horizontal and vertical scrolling you need to somehow specify the number of columns for your grid. the FlowLayout doesn't have that. A simple sollution is to make a subclass of UICollectionViewLayout and override collectionViewContentSize to make it retun a width = to the added sum of the cells widths of one row (this is where knowing how many collumns you want is necessary), plus any additional spacing between them. This will work fine if your cells have the same size per column, similar to a grid.
You should embed a UITableView into a UIScrollView.
ScrollView and TableView will have the same height but different widths.
This way UITableView will scroll vertical and UIScrollView will scroll horizontal.
Xcode 11+, Swift 5.
I solved my issue, I prepared video and code
I have a scroll view with content that is 1000px tall and would like to be able to lay it out for easy design on the storyboard.
I know it can be done programmatically but I really want to be able to see it visually. Every time I put a scroll view on a view controller it won't scroll. Is it possible to get it to work like I want or do I have to do it in the code?
I'm answering my own question because I just spent 2 hours to find the solution and StackOverflow allows this QA style.
Start to finish here is how to make it work in storyboard.
1: go to you view controller and click on Attribute Inspector.
2: change Size to Freeform instead of Inferred.
3: Go to the main view on that storyboard, not your scrollview but rather the top level view.
4: Click Size Inspector and set this view to your desired size. I changed my height to 1000.
Now you will see that you storyboard has your view setup so you can see the entire height of your scroll for easy design.
5: Drop on a scrollview and stretch it so it takes up the whole view. You should now have a scrollview with size of 320,1000 sitting on a view in your view controller.
Now we need to make it scroll and need to make it show content correctly.
6: Click on your scrollview and click on Identity Inspector.
7: Add a User Defined runtime attribute with KeyPath of contentSize then type of SIZE and put in your content size. For me it is (320, 1000).
Since we want to see our whole scroll view on the storyboard we stretched it and it has a frame of 320,1000 but in order for this to work in our app we need to change the frame down to what the visible scrollview will be.
8: Add a runtime attribute with KeyPath frame with Type RECT and 0,0,320,416.
Now when we run our app we will have a visible scrollview has a frame of 0,0,320, 416 and can scroll down to 1000. We are able to layout our subviews and images and whatnot in Storyboard just the way we want them to appear. Then our runtime attributes make sure to display it properly. All of this without 1 line of code.
Here are the steps with Auto Layout that worked for me on XCode 8.2.1.
Select Size Inspector of View Controller, and change Simulated Size to Freeform with height 1000 instead of Fixed.
Rename the view of View Controller as RootView.
Drag a Scroll View as subview of RootView and rename it as ScrollView.
Add constraints for ScrollView:
ScrollView[Top, Bottom, Leading, Trailing] = RootView[Top, Bottom, Leading, Trailing]
Drag a Vertical Stack View as subview of ScrollView and rename it as ContentView.
Add constraints for ContentView:
ContentView.height = 1000
ContentView[Top, Bottom, Leading, Trailing, Width] = ScrollView[Top, Bottom, Leading, Trailing, Width]
Select Attributes Inspector of ContentView, and change Distribution to Fill Equally instead of Fill.
Drag a View as subview of ContentView and rename it as RedView.
Set Red as the background of RedView.
Drag a View as subview of ContentView and rename it as BlueView.
Set Blue as the background of BlueView.
Select RootView, and click Update Frames button.
Update Frames is a new button in Xcode8, instead of Resolve Auto Layout Issues button. It looks like a refresh button, located in the control bar below the Storyboard:
View hierarchy:
RootView
ScrollView
ContentView
RedView
BlueView
View Controller Scene (Height: 1000):
Run on iPhone7 (Height: 1334 / 2):
Here are the steps that worked for me on iOS 7 and XCode 5.
Drag a ViewController (it comes with UIView "View").
1.1 Select "View Controller" and select "File Inspector" and uncheck "Auto layout".
Drag a ScrollView (as child of ViewController's UIView "View")
Select ScrollView and open "Identity Inspector".
Enter "contentSize" for keyPath. Select "Size" for Type. And Enter {320, 1000} for value.
Note: Step 4 is simply saying that the scroller contains some content whose size is 320x1000 units. So setting contentSize will make scroller work.
Select View Controller, Select "Attributes Inspector" then select Freeform from Size.
Note: step 5 will allow us to change the size of "View" that the view controller comes with.
Select "View" and then select "Size Inspector".
Set Width to 320 and height to 1000.
Note: 5, 6 & 7 is purely for us to see stretched or entire expanded view inside StoryBoard.
Note: Make sure to unselect "Auto Layout" on View Controller.
Your View hierarchy should look like:
After hours of trial and error, I've found a very easy way to put contents into scrollviews that are 'offscreen'. Tested with XCode 5 & iOS 7. You can do this almost entirely in Storyboard, using 2 small tricks/workarounds :
Drag a viewcontroller onto your storyboard.
Drag a scrollView on this viewController, for the demo you can leave its size default,
covering the entire screen.
Now comes trick 1 : before adding any element to the scrollView, drag in a regular 'view' (This view will be made larger than the screen, and will contain all the sub elements like buttons, labels, ...let's call it the 'enclosing view').
Let this enclosing view's Y size in the size inspector to for example 800.
Drop in a label onto the enclosing view, somewhere at Y position 200, name it 'label 1'.
Trick 2 : make sure the enclosing view is selected (not the scrollView !), and set its Y position to for example -250, so you can add an item that is 'outside' the screen
Drop in a label, somewhere at the bottom of the screen, name it 'label 2'. This label is actually 'off screen'.
Reset the Y position of the enclosing view to 0, you'll no longer see label 2, as it was positioned off screen.
So far for the storyboard work, now you need to add a single line of code to the viewController's 'viewDidLoad' method to set the scrollViews contents so it contains the entire 'enclosing view'. I didn't find a way to do this in Storyboard:
- (void)viewDidLoad
{
[super viewDidLoad];
self.scrollView.contentSize = CGSizeMake(320, 800);
}
You can try doing this by adding a contentSize keyPath as a size to the scrollView in the Identity Inspector and setting it to (320, 1000).
I think Apple should make this easier in storyboard, in a TableViewController you can just scroll offscreen in Storyboard (just add 20 cells, and you'll see you can simply scroll), this should be possible with a ScrollViewController too.
Getting Scrolling to work in iOS7 and Auto-layout in iOS 7 and XCode 5.
In addition to this: https://stackoverflow.com/a/22489795/1553014
Apparently, all we need to do is:
Set all constraints to Scroll View (i.e. fix scroll view first)
Then set distance-from-scrollView constraint to the bottom most item to scroll view (which is the super view).
Note: Step 2 will tell storyboard where the last piece of content lies within Scroll view.
For this example, I have unchecked the Autolayout feature of the Interface builder. And, I'm still using (for no reason at all) the relatively old 4.6.1 version of Xcode.
Start with a view controller that has a scroll view over it (the main view).
1: Add a Container View, from the Object Library, to the scroll view. Notice that a new view controller is added to the storyboard and it is linked to the view controller with the scroll view.
2: Select the container view and, on the Size Inspector, make it anchor to top and left without auto resizing.
3: Change its height to 1000. (1000 is used for this example. You should apply the value that you require.)
4: Select the new view controller and, from the Attributes Inspector, change Size to Freeform.
5: Select the view of the new view controller and, on the size Inspector, change the height to 1000 (which is equal to the container view's height).
6: For your test later, while still on the view of the new view controller, add a label at the top and at the bottom of the view.
7: Select the scroll view from the original view controller. On the Identity inspector, add an attribute with the keyPath set to contentSize, type set to Size, and value set to {320, 1000} (or your container view's size).
8: Run on the 4-inch iPhone Simulator. You should be able to scroll from the top label up to the bottom label.
9: Run on the 3.5-inch iPhone Simulator. You should be able to scroll from the top label up to the bottom label.
Remember that Xcode 4.6.1 can only build for iOS6 and below. Using this approach and building for iOS6, I am still able to achieve the same results when the app is run on iOS7.
Note that within a UITableView, you can actually scroll the tableview by selecting a cell or an element in it and scrolling up or down with your trackpad.
For a UIScrollView, I like Alex's suggestion, but I would recommend temporarily changing the view controller to freeform, increasing the root view's height, building your UI (steps 1-5), and then changing it back to the standard inferred size when you are done so that you don't have to hard code content sizes in as runtime attributes. If you do that you are opening yourself up to a lot of maintenance issues trying to support both 3.5" and 4" devices, as well as the possibility of increased screen resolutions in the future.
Disclaimer :- Only for ios 9 and above (Stack View).
If you are deploying your app on ios 9 devices use a stack view.
Here are the steps :-
Add a scroll view with constraints - pin to left, right, bottom, top (without margins) to superview (view)
Add a stack view with same constraints to scroll view.
Stack View Other Constraints :- stackView.bottom = view.bottom and stackView.width = scrollView.width
Start adding your views. The scroll view will decide to scroll based on the size of the stack view (which is essentially your content view)
Here's how to setup a scrollview using Xcode 11
1 - Add scrollview and set top,bottom,leading and trailing constraints
2 - Add a Content View to the scrollview, drag a connection to the Content Layout Guide and select Leading, Top, Bottom and Trailing. Make sure to set its' values to 0 or the constants you want.
3 - Drag from the Content View to the Frame Layout Guide and select Equal Widths
4 - Set a height constraint constant to the Content View
i wanna put my 5 cents to accepted answer:
i've been researching topic for 2 days and finally found a solution that i will be using always from now on
go up to item 4 in accepted answer and forget about adding attributes of frames and contentsizes and so on
to make everything automatic just use solution from this link
everything is clear, easy, elegant and works like a charm on ios 7. i'm pretty glad with all that lol
You should only set the contentSize property on the viewDidAppear, like this sample:
- (void)viewDidAppear:(BOOL)animated{
[super viewDidAppear:animated];
self.scrollView.contentSize=CGSizeMake(306,400.0);
}
It solve the autolayout problems, and works fine on iOS7.
Here is a simple solution.
Set the size attribute of your view controller in the storyboard to "Freeform" and set the size you want. Make sure it's big enough to fit the full content of your scroll view.
Add your scroll view and set the constraints as you normally would. i.e. if you wants the scroll view to be the size of your view, then attach your top, bottom, leading, trailing margins to the superview as you normally would.
Now just make sure there are constraints in the subviews of the scrollview that connect the top and bottom of the scroll view. Same for left and right if you have horizontal scrolling.
In iOS7 I found that if I had a View inside a UIScrollView on a FreeForm-sized ViewController it would not scroll in the app, no matter what I did. I played around and found the following seemed to work, which uses no FreeForms:
Insert a UIScrollView inside the main View of a ViewController
Set the Autolayout constraints on the ScrollView as appropriate. For me I used 0 to Top
Layout guide and 0 to Bottom layout Guide
Inside the ScrollView, place a Container View. Set its height to whatever you want (e.g. 1000)
Add a Height constraint (1000) to the Container so it doesn't resize. The bottom will be past the end of the form.
Add the line [self.scrollView setContentSize:CGSizeMake(320, 1000)]; to the ViewController that contains the scrollView (which you've hooked up as a IBOutlet)
The ViewController (automatically added) that is associated with the Container will have the desired height (1000) in Interface Builder and will also scroll properly in the original view controller. You can now use the container's ViewController to layout your controls.
Here's a bit of a grubby answer that get's to the same solution for vertical scroll views, but (against the ethos of stackoverflow) doesn't answer the question. Instead of using a scrollView, just use a UITableView, drag a normal UIView into the header, and make it as big as you want, you can now scroll the content in storyboard.
Apparently you don't need to specify height at all! Which is great if it changes for some reason (you resize components or change font sizes).
I just followed this tutorial and everything worked: http://natashatherobot.com/ios-autolayout-scrollview/
(Side note: There is no need to implement viewDidLayoutSubviews unless you want to center the view, so the list of steps is even shorter).
Hope that helps!
The key is the contentSize.
This is often missing and not indicated when adding a UIScrollView.
Select the UIScrollView and select the Identity Inspector.
Add a contentSize keyPath as a size to the scrollView in the Identity Inspector and setting it to (320, 1000).
Scroll away.
If you are using auto-layout than best approach is to use UITableViewController with static cells in storyboard.
I have also once faced the problem with a view that require much more scrolling so change the UIScrollView with above mentioned technique.