By Shadowman

2014-06-09 18:39:44 8 Comments

One of our application screens requires us to place a UICollectionView inside of a UITableViewCell. This UICollectionView will have a dynamic number of items, resulting in a height which must be calculated dynamically as well. However, I am running into problems trying to calculate the height of the embedded UICollectionView.

Our overarching UIViewController was created in Storyboards and does make use of auto layout. But, I don't know how to dynamically increase the height of the UITableViewCell based on the height of the UICollectionView.

Can anyone give some tips or advice on how to accomplish this?


@SRP-Achiever 2018-12-14 16:03:35

I read through all the answers. This seems to serve all cases.

override func systemLayoutSizeFitting(_ targetSize: CGSize, withHorizontalFittingPriority horizontalFittingPriority: UILayoutPriority, verticalFittingPriority: UILayoutPriority) -> CGSize {
        collectionView.frame = CGRect(x: 0, y: 0, width: targetSize.width , height: 1)
        return collectionView.collectionViewLayout.collectionViewContentSize

@Abd Al-rhman Taher Badary 2018-06-14 03:15:16

I was facing the same issue recently and I almost tried every solution in the answers, some of them worked and others didn't my main concern about @PabloRomeu approach is that if you have other contents in the cell (other than the collection view) you will have to calculate their heights and the heights of their constraints and return the result to get the auto layout right and I don't like to calculate things manually in my code. So here is the solution that worked fine for me without doing any manual calculations in my code.

in the cellForRow:atIndexPath of the table view I do the following:

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    //do dequeue stuff
    //initialize the the collection view data source with the data
    cell.frame =
    return cell

I think what happens here is that I force the tableview cell to adjust its height after the collection view height has been calculated. (after providing the collectionView date to the data source)

@jmad8 2018-04-26 16:52:30

Pablo Romeu's answer above ( helped me immensely with my issue. I had to do a few things differently, however, to get this working for my problem. First off, I didn't have to call layoutIfNeeded() as often. I only had to call it on the collectionView in the systemLayoutSizeFitting function.

Secondly, I had auto layout constraints on my collection view in the table view cell to give it some padding. So I had to subtract the leading and trailing margins from the targetSize.width when setting the collectionView.frame's width. I also had to add the top and bottom margins to the return value CGSize height.

To get these constraint constants, I had the option of either creating outlets to the constraints, hard-coding their constants, or looking them up by an identifier. I decided to go with the third option to make my custom table view cell class easily reusable. In the end, this was everything I needed to get it working:

class CollectionTableViewCell: UITableViewCell {

    // MARK: -
    // MARK: Properties
    @IBOutlet weak var collectionView: UICollectionView! {
        didSet {
            collectionViewLayout?.estimatedItemSize = CGSize(width: 1, height: 1)
            selectionStyle = .none

    var collectionViewLayout: UICollectionViewFlowLayout? {
        return collectionView.collectionViewLayout as? UICollectionViewFlowLayout

    // MARK: -
    // MARK: UIView functions
    override func systemLayoutSizeFitting(_ targetSize: CGSize, withHorizontalFittingPriority horizontalFittingPriority: UILayoutPriority, verticalFittingPriority: UILayoutPriority) -> CGSize {

        let topConstraintConstant = contentView.constraint(byIdentifier: "topAnchor")?.constant ?? 0
        let bottomConstraintConstant = contentView.constraint(byIdentifier: "bottomAnchor")?.constant ?? 0
        let trailingConstraintConstant = contentView.constraint(byIdentifier: "trailingAnchor")?.constant ?? 0
        let leadingConstraintConstant = contentView.constraint(byIdentifier: "leadingAnchor")?.constant ?? 0

        collectionView.frame = CGRect(x: 0, y: 0, width: targetSize.width - trailingConstraintConstant - leadingConstraintConstant, height: 1)

        let size = collectionView.collectionViewLayout.collectionViewContentSize
        let newSize = CGSize(width: size.width, height: size.height + topConstraintConstant + bottomConstraintConstant)
        return newSize

As a helper function to retrieve a constraint by identifier, I add the following extension:

extension UIView {
    func constraint(byIdentifier identifier: String) -> NSLayoutConstraint? {
        return constraints.first(where: { $0.identifier == identifier })

NOTE: You will need to set the identifier on these constraints in your storyboard, or wherever they are being created. Unless they have a 0 constant, then it doesn't matter. Also, as in Pablo's response, you will need to use UICollectionViewFlowLayout as the layout for your collection view. Finally, make sure you link the collectionView IBOutlet to your storyboard.

With the custom table view cell above, I can now subclass it in any other table view cell that needs a collection view and have it implement the UICollectionViewDelegateFlowLayout and UICollectionViewDataSource protocols. Hope this is helpful to someone else!

@Frédéric Adda 2018-04-05 20:53:29

Pablo's solution did not work very well for me, I had strange visual effects (the collectionView not adjusting correctly).

What worked was to adjust the height constraint of the collectionView (as a NSLayoutConstraint) to the collectionView contentSize during layoutSubviews(). This is the method called when autolayout is applied to the cell.

// Constraint on the collectionView height in the storyboard. Priority set to 999.
@IBOutlet weak var collectionViewHeightConstraint: NSLayoutConstraint!

// Method called by autolayout to layout the subviews (including the collectionView).
// This is triggered with 'layoutIfNeeded()', or by the viewController
// (happens between 'viewWillLayoutSubviews()' and 'viewDidLayoutSubviews()'.
override func layoutSubviews() {

    collectionViewHeightConstraint.constant = collectionView.contentSize.height

// Call `layoutIfNeeded()` when you update your UI from the model to trigger 'layoutSubviews()'
private func updateUI() {

@Osa 2018-01-08 01:01:44

Easiest approach I've came up with, so far, Credits to @igor answer above,

In your tableviewcell class just insert this

override func layoutSubviews() {
    self.collectionViewOutlet.constant = self.postPoll.collectionViewLayout.collectionViewContentSize.height

and of course, change the collectionviewoutlet with your outlet in the cell's class

@Nik Kov 2018-03-30 13:45:07

The cell's height doesn't calculate properly

@Igor 2016-07-17 21:33:17

I think, my way is much more simple, then proposed by @PabloRomeu.

Step 1. Create outlet from UICollectionView to UITableViewCell subclass, where UICollectionView is placed. Let, it's name will be collectionView

Step 2. Add in IB for UICollectionView height constraint and create outlet to UITableViewCell subclass too. Let, it's name will be collectionViewHeight.

Step 3. In tableView:cellForRowAtIndexPath: add code:

// deque a cell
cell.frame = tableView.bounds;
[cell layoutIfNeeded];
[cell.collectionView reloadData];
cell.collectionViewHeight.constant = cell.collectionView.collectionViewLayout.collectionViewContentSize.height;

@Dale 2016-07-19 01:24:50

Have you actually tried this? It doesn't seem possible to both set a height constraint on the collection view and pin it to the margins of the table view cell. You either end up with too few constraints (hence a zero size warning), or you end up with conflicting constraints (one of which is ignored). Please explain how to set the constraints for this solution.

@Igor 2016-07-19 01:29:50

I have it worked. I add constraints for collectionView to all sides of UITableViewCell and set tableView.estimatedRowHeight = 44; and tableView.rowHeight = UITableViewAutomaticDimension;

@Sebin Roy 2016-10-13 11:36:27

This one works like champ...simple and efficient...thank you. If for somebody it is not working then probably the reason might be, we need to bind the bottom of collection view to bottom of table view cell. Then it will start working. Happy coding..:)

@Carl Lindberg 2016-10-29 15:22:07

Would this work when the screen is resized, say by rotating an iPad? That would potentially change the height of the collection view, and therefore the height of the cell, but if on-screen the cell may not necessarily be reloaded by the table view, thus never calling the cellForRowAtIndexPath: method and not giving you a chance to change the constraint constant. It may be possible to force a reloadData though.

@Igor 2016-10-29 15:31:33

I think, yes, it's needed to force reloadData on change Interface orientation.

@Pablo Romeu 2016-11-02 15:53:46

Have you tried different collectionView cell's sizes? That was my problem. If you have different collectionView's cell sizes it did not work... :(

@Clifton Labrum 2016-11-18 17:53:58

Does someone have this working in a sample project they could share?

@pkc456 2017-02-13 11:48:21

@PabloRomeu, I am facing same problem. Any solution?

@Pablo Romeu 2017-02-13 13:17:09

@pkc456 see my answer:

@Pangu 2017-07-19 00:27:04

@Igor I'm running into a similar issue..can you assist me with my question?…

@Osa 2018-01-08 00:51:41

There's a different EASIER approch for this, just implment the last line of your code in the table cell's layoutSubviews() class

@Bogdan Razvan 2018-02-07 13:19:37

I needed to adapt your solution a bit, but it worked in the end! What I did was reverse the order of these two lines: [cell layoutIfNeeded]; [cell.collectionView reloadData];

@Nick Kirsten 2018-02-23 11:16:59

This works like a dream.. Thanks!

@Saeed Rahmatolahi 2018-04-17 04:22:33

this will work But my problem is that inside the collection view I have another collection view and the main collection view has just two page (paging mode) and each page has collection view how can I handle that ?

@Đức Bùi 2018-05-17 09:08:40

holy ****. It's magical. Thank you very much

@mrunal thanki 2018-06-18 15:18:39

@Igor, Do you have any sample code for this? Because I have tried and it won't work for me... It would be great if you can provide any sample code for it.

@Rakesha Shastri 2019-01-28 07:30:20

The collectionView reload is taking time and if i change my font size of labels inside the collectionview cell and reload, the latest contentsize is not reflected.

@Andrey Chernukha 2019-02-05 15:21:30

What I don't understand is what this line cell.frame = tableView.bounds; for. Can anybody explain this please?

@Dale 2016-07-19 01:10:46

An alternative to Pablo Romeu's solution is to customise UICollectionView itself, rather than doing the work in table view cell.

The underlying problem is that by default a collection view has no intrinsic size and so cannot inform auto layout of the dimensions to use. You can remedy that by creating a custom subclass which does return a useful intrinsic size.

Create a subclass of UICollectionView and override the following methods

override func intrinsicContentSize() -> CGSize {

    var size = super.contentSize
    if size.width == 0 || size.height == 0 {
        // return a default size
        size = CGSize(width: 600, height:44)

    return size

override func reloadData() {

(You should also override the related methods: reloadSections, reloadItemsAtIndexPaths in a similar way to reloadData())

Calling layoutIfNeeded forces the collection view to recalculate the content size which can then be used as the new intrinsic size.

Also, you need to explicitly handle changes to the view size (e.g. on device rotation) in the table view controller

    override func viewWillTransitionToSize(size: CGSize, withTransitionCoordinator coordinator: UIViewControllerTransitionCoordinator)
    super.viewWillTransitionToSize(size, withTransitionCoordinator: coordinator)
    dispatch_async(dispatch_get_main_queue()) {

@May Phyu 2017-06-20 11:26:57

bro could you please help my problem… ?

@Ilya A. Shuvaloff 2016-05-25 10:50:28

Maybe my variant will be useful; i've been deciding this task during last two hours. I don't pretend it's 100% correct or optimal, but my skill's very small yet and i'd like to hear comments from experts. Thank you. One important note: this works for static table - it's specified by my current work. So, all I use is viewWillLayoutSubviews of tableView. And a little bit more.

private var iconsCellHeight: CGFloat = 500 

func updateTable(table: UITableView, withDuration duration: NSTimeInterval) {
    UIView.animateWithDuration(duration, animations: { () -> Void in

override func viewWillLayoutSubviews() {
    if let iconsCell = tableView.cellForRowAtIndexPath(NSIndexPath(forRow: 0, inSection: 1)) as? CategoryCardIconsCell {
        let collectionViewContentHeight = iconsCell.iconsCollectionView.contentSize.height
        if collectionViewContentHeight + 17 != iconsCellHeight {
            iconsCellHeight = collectionViewContentHeight + 17
            updateTable(tableView, withDuration: 0.2)

override func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
    switch (indexPath.section, indexPath.row) {
        case ...
        case (1,0):
            return iconsCellHeight
            return tableView.rowHeight
  1. I know, that the collectionView is located in the first row of the second section;
  2. Let the height of the row is 17 p. bigger, than its content height;
  3. iconsCellHeight is a random number as the program starts (i know, that in the portrait form it has to be exactly 392, but it's not important). If the content of collectionView + 17 is not equal this number, so change its value. Next time in this situation the condition gives FALSE;
  4. After all update the tableView. In my case its the combination of two operations (for nice updating of extending rows);
  5. And of course, in the heightForRowAtIndexPath add one row to code.

@Pablo Romeu 2015-10-27 09:26:44

The right answer is YES, you CAN do this.

I came across this problem some weeks ago. It is actually easier than you may think. Put your cells into NIBs (or storyboards) and pin them to let auto layout do all the work

Given the following structure:







[...variable number of cells or different cell sizes]

The solution is to tell auto layout to compute first the collectionViewCell sizes, then the collection view contentSize, and use it as the size of your cell. This is the UIView method that "does the magic":


You have to set here the size of the TableViewCell, which in your case is the CollectionView's contentSize.


At the CollectionViewCell you have to tell the cell to layout each time you change the model (e.g.: you set a UILabel with a text, then the cell has to be layout again).

- (void)bindWithModel:(id)model {
    // Do whatever you may need to bind with your data and 
    // tell the collection view cell's contentView to resize
    [self.contentView setNeedsLayout];
// Other stuff here...


The TableViewCell does the magic. It has an outlet to your collectionView, enables the auto layout for collectionView cells using estimatedItemSize of the UICollectionViewFlowLayout.

Then, the trick is to set your tableView cell's size at the systemLayoutSizeFittingSize... method. (NOTE: iOS8 or later)

NOTE: I tried to use the delegate cell's height method of the tableView -(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath.but it's too late for the auto layout system to compute the CollectionView contentSize and sometimes you may find wrong resized cells.

@implementation TableCell

- (void)awakeFromNib {
    [super awakeFromNib];
    UICollectionViewFlowLayout *flow = (UICollectionViewFlowLayout *)self.collectionView.collectionViewLayout;

    // Configure the collectionView
    flow.minimumInteritemSpacing = ...;

    // This enables the magic of auto layout. 
    // Setting estimatedItemSize different to CGSizeZero 
    // on flow Layout enables auto layout for collectionView cells.
    flow.estimatedItemSize = CGSizeMake(1, 1);

    // Disable the scroll on your collection view
    // to avoid running into multiple scroll issues.
    [self.collectionView setScrollEnabled:NO];

- (void)bindWithModel:(id)model {
    // Do your stuff here to configure the tableViewCell
    // Tell the cell to redraw its contentView        
    [self.contentView layoutIfNeeded];

// This method tells the auto layout
// You cannot calculate the collectionView content size in any other place, 
// because you run into race condition issues.
// NOTE: Works for iOS 8 or later
- (CGSize)systemLayoutSizeFittingSize:(CGSize)targetSize withHorizontalFittingPriority:(UILayoutPriority)horizontalFittingPriority verticalFittingPriority:(UILayoutPriority)verticalFittingPriority {

    // With autolayout enabled on collection view's cells we need to force a collection view relayout with the shown size (width)
    self.collectionView.frame = CGRectMake(0, 0, targetSize.width, MAXFLOAT);
    [self.collectionView layoutIfNeeded];

    // If the cell's size has to be exactly the content 
    // Size of the collection View, just return the
    // collectionViewLayout's collectionViewContentSize.

    return [self.collectionView.collectionViewLayout collectionViewContentSize];

// Other stuff here...



Remember to enable the auto layout system for the tableView cells at your TableViewController:

- (void)viewDidLoad {
    [super viewDidLoad];

    // Enable automatic row auto layout calculations        
    self.tableView.rowHeight = UITableViewAutomaticDimension;
    // Set the estimatedRowHeight to a non-0 value to enable auto layout.
    self.tableView.estimatedRowHeight = 10;


CREDIT: @rbarbera helped to sort this out

@thibaut noah 2015-10-30 16:13:43

Question, how do you link the tableview and the collectionview in the storyboard? I assume you use a segue but i cannot choose which one. Also i'm coding in swift so i'm already struggling with the traduction of the code

@Pablo Romeu 2015-10-31 08:34:17

I create a NIB for the UITableViewCell, and a custom subclass for that cell (E.g. PRTableCell), then I put a UICollectionView -NOT a UICollectionViewController- inside the cell with auto layout constraints. Then I create an outlet for the collectionView into the PRTableCell. If you want to use storyboard, simply do the same with a cell Prototype and using a custom class.

@thibaut noah 2015-11-02 10:02:22

ok thanks, gonna try that

@csotiriou 2015-12-07 13:08:35

Yeah. This works. This should be the accepted answer.

@hugocarlmartin 2016-02-08 15:25:22

I can't get this to work in Swift. I have exactly the same problem, I used… as a guide. But having a "fixed" dynamic height doesnt seem to work for me.

@Ravi Ojha 2016-02-16 13:20:02

Can any body provide me a sample code for it? i want to show multiple images in vertical collection view , which is inside of tableview cell..

@Ravi Ojha 2016-03-01 09:59:04

@PabloRomeu can you please explain it in sample , i am new in ios

@MobileVet 2016-05-14 00:35:07

@PabloRomeu Great right up, this really helped me. Thank you

@pkc456 2016-06-06 11:10:08

@PabloRomeu, My long search ends here. Thanks

@ingaham 2016-08-08 12:08:10

Finally this is worked for me, but I had to do an other trick: cell.bounds = CGRectMake(0, 0, CGRectGetWidth(tableView.bounds), 10000); This will "simulate" a long cell with a long collectionView, so the collectionView will compute the size all of its cells. Otherwise the collectionView computed only the visible cell sizes, and set wrongly the talbeViewCell height.

@Pablo Romeu 2016-08-08 13:15:16

Maybe @ingaham using estimatedCellSize will do the trick too...

@ingaham 2016-08-08 13:35:03

If you have a collectionView with elements located outside of the collectionView, it's real size won't be computed, the estimatedSize will be used instead of this. The real size will be computed only if these cell will be visible, bat that's too late, because at this point your tableViewCell has a wrong height setup already. So no, the estimatedSize won't do the trick

@gonso 2016-08-23 09:41:23

Question (before I go and try this solution): In my case, the collection view is PART of the cell. The cell has other components and currently Autolayout is calculating the cell height for me, since the other components are dynamic. So far the collection view has a fixed height, but I want to make it dynamic too. Will this work? How? My idea is to use this method to change a height constraint for the collection view, not for the cell.... is that the right path?

@Paludis 2016-08-25 06:52:27

@gonso I made it work using a height constraint on the collection view in the systemLayoutSizeFittingSize method. collectionViewHeightConstraint.constant = collectionView.collectionViewLayout.collectionViewContentSiz‌​e().height then return self.contentView.systemLayoutSizeFittingSize(UILayoutFitting‌​CompressedSize)

@gigo 2016-11-01 08:56:17

@ingaham Exactly, the cell.bounds trick is the most important part. I am using a tableView inside a tableView cell (almost the same setup) and without setting the outer table's cell.bounds to some huge height it doesn't compute the contentSize correctly.

@WedgeSparda 2017-04-20 11:12:43

I'm trying this way but the only thing I've got is the app to freeze :( @ingaham Where did you place that cells.bouds statement?

@ingaham 2017-04-20 14:34:48

@WedgeSparda: When I'm configuring the cell in the tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath). I'm setting at first the cell.bounds, then the full cell layout will be configured

@WedgeSparda 2017-04-21 11:26:33

@ingaham Tried that, but have the same problem. If I scroll quickly the height of the cell containing the collectionView if not correct. After a reloadData on the tableView the cell gets the correct height. Is really weird.

@May Phyu 2017-06-20 05:03:50

@PabloRomeu, Hello bro, Could you help me to look at my question… bro?

@Ekra 2017-06-25 21:39:26

@PabloRomeu by this methos the collection has some extra spaces. how to get rid of it. When we have to bindWithModel mentioned in your code

@Pablo Romeu 2017-06-26 10:08:12

bindWithModel means you have to set your model to your cell there. That's important because maybe you have to setup -for example- a UILabel that may change the cell's size.

@titan 2017-08-16 17:01:32

when setting the frame height to maximum in systemLayoutSizeFittingSize, i hit a problem in swift when reloading the cell, apps seems to stuck after the self.collectionView.layoutIfNeeded(). I fixed it by setting the frame height with 1 rather than maximum height. Hope its helps if anyone stumble in this problem.

@nr5 2017-09-07 05:44:19

What if my CollectionView's flow is horizontal? In that case, the collectionViewCell can grow vertically?

@Pablo Romeu 2017-09-08 06:33:58

@Nil It will. My collection view had no flow and was multiline, I grew up the tableViewCell to the full size of the collection so it can fit fully inside.

@xaphod 2017-09-14 21:11:06

@PabloRomeu I'm having same issue as @WedgeSparda, and I can see why: in systemLayoutSizeFittingSize right before calling layoutIfNeeded on the collectionview, I can see that self.bounds (the bounds of the tableview cell) has a width of 363 pixels. But after calling layoutIfNeeded on the collectionview, the size of the collectionview (contentSize, or frame) has a larger width (606 pixels), even though it is pinned with constraints to the inside of the tableview cell. Thus the first time systemLayoutSizeFittingSize returns a value, the value is wrong.

@Pablo Romeu 2017-09-15 07:36:00

@xaphod that's because the table cell is still not still at full size...

@xaphod 2017-09-15 13:55:12

Here's what fixed it for me - in systemLayoutSizeFitting, reverse the order of what's shown in the answer currently, so that first collectionView.layoutIfNeeded() runs, then collectionView.frame = CGRect.init(origin: .zero, size: CGSize.init(width: targetSize.width, height: 1))

@letsbondiway 2017-12-28 21:41:48

I have a UIView inside the TableViewCell and inside that view, I place the collectionView. I create a subclass of this view. This subclass of UIView is the datasource and delegate for collectionView and am putting in the systemLayoutSizeFitting method inside that view subclass however, it is not working. I have the outlet of UIView subclass inside my TableViewCell and outlet for the collectionView inside the UIView subclass.

@Alexey Chekanov 2018-02-20 00:42:38

Does anybody know how to make it work in Swift with Autolayout? Are there any examples? Thank you!

@Boaz Frenkel 2018-07-11 12:43:28

@AlexeyChekanov here is my code, I'm setting constraints with AutoLayout on my Storyboard and using their outlets in my code. My cell has a label and under it a collection view with varying number of buttons in different sizes. So I'm letting Autolayout set the position of things and then taking all heights together for the cell height size. Please see:

@Andrey Chernukha 2019-02-05 15:41:47

This is a great answer! Also @titan's comment is very important

@Andrey Chernukha 2019-02-06 16:00:24

Just noticed. Sometimes it doesn't work. Doesn't size the table view cell to take the whole collection view height

@sablib 2015-06-30 06:49:52

You can calculate the height of the collection based on its properties like itemSize, sectionInset, minimumLineSpacing, minimumInteritemSpacing, if your collectionViewCell has the border of a rule.

@Parag Shinde 2014-06-18 10:26:52

1.Create dummy cell.
2.Use collectionViewContentSize method on UICollectionViewLayout of UICollectionView using current data.

@Bartłomiej Semańczyk 2015-05-04 18:00:22

It should be the best answer... since there is no possibility to set the height of cell with 'uicollectionview' without putting the content to the dummy cell, get height, and then set it again to the proper cell

@xtrinch 2016-05-22 11:25:14

how do i use that method?

@Nik Kov 2018-03-30 13:53:32

Add an example.

@Martin 2014-06-17 00:29:57

In your UITableViewDelegate:

-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
    return ceil(itemCount/4.0f)*collectionViewCellHeight;

Substitute itemCount and CollectionViewCellHeight with the real values. If you have an array of arrays itemCount might be:


Or whatever.

@thesummersign 2015-06-22 06:19:52

I think the main question is to how to calculate collectionViewCellHeight before it renders.

@Rivera 2014-06-16 08:30:18

Both table views and collection views are UIScrollView subclasses and thus don't like to be embedded inside another scroll view as they try to calculate content sizes, reuse cells, etc.

I recommend you to use only a collection view for all your purposes.

You can divide it in sections and "treat" some sections' layout as a table view and others as a collection view. After all there's nothing you can't achieve with a collection view that you can with a table view.

If you have a basic grid layout for your collection view "parts" you can also use regular table cells to handle them. Still if you don't need iOS 5 support you should better use collection views.

@fatuhoku 2015-03-30 21:40:30

... makes so much sense...

@alex da franca 2015-05-04 13:02:32

You've put "treat" in quotes, because you can NOT define different layouts per CollectionView section, right? I haven't found an option to define different layouts for different collection view sections. Am I overlooking something or are you talking of responding differently to 'layoutAttributesForItemAtIndexPath' for different sections in my own custom subclass of UICollectionViewLayout?

@Rivera 2015-05-04 14:11:38

Yes -> Are you talking of responding differently to layoutAttributesForItemAtIndexPath for different sections in my own custom subclass of UICollectionViewLayout?

@thesummersign 2015-06-22 06:21:22

@Rivera, your answer is most reasonable and sounds just correct. I have read this suggestion on many places. Could you also share some link to sample or tute on how to accomplish that or at least some pointers. TIA

@xaphod 2017-09-14 21:04:35

Your answer assumes you are starting from scratch, and don't already have a big complex tableview that you need to fit into. The question specifically asked about putting a collectionview in a tableview. IMO your response is not an "answer"

@crashoverride777 2018-06-08 15:36:41

This is a bad answer. Having collection views inside table views is such a common thing to do, almost every app does it.

@InkGolem 2014-06-09 18:50:23

I would put a static method on the collection view class that will return a size based on the content it will have. Then use that method in the heightForRowAtIndexPath to return the proper size.

Also note that you can get some weird behavior when you embed these kinds of viewControllers. I did it once and had some weird memory issues I never worked out.

@fatuhoku 2015-03-30 21:44:21

For me, I was trying to embed a table view controller inside collection view controllers. Every time a cell is re-used, it ended up remembering some autolayout constraints I applied onto them. It was very fiddly and ultimately was a terrible idea. I think I will just use a single collection view instead.

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