Hello, How can I use this library without storyBoard ( because in my code I'm drawing tableView programmatically ) , I tried something like this but didn't worked and MyCollectionView never called and layout is always nil :

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    //self.view.backgroundColor = [UIColor whiteColor];
    [self.view addSubview:self.collectionView];

    [_collectionView registerNib:[UINib nibWithNibName:@"myCell" bundle:nil] forCellWithReuseIdentifier:@"cell3"];
    [_collectionView setBackgroundColor:[UIColor colorWithRed:0.945 green:0.945 blue:0.945 alpha:1] ];
    [_collectionView setTransform:CGAffineTransformMakeScale(-1, 1)];

    RFQuiltLayout* layout = (id)[_collectionView collectionViewLayout];
    layout.direction = UICollectionViewScrollDirectionVertical;
    layout.blockPixels = CGSizeMake(100, 100);
}


- (UICollectionView *)collectionView {
    if (!_collectionView) {
        CGRect collectionViewFrame = self.view.bounds;
        collectionViewFrame.size.height -= (self.navigationController.viewControllers.count > 1 ? 0 : (CGRectGetHeight(self.tabBarController.tabBar.bounds))) + 0;
        //        FMMosaicLayout *mosaicLayout = [[FMMosaicLayout alloc] init];
        ////        _collectionView = [[UICollectionView alloc] initWithFrame:collectionViewFrame collectionViewLayout:mosaicLayout];
//                RFQuiltLayout* layout = (id)[_collectionView collectionViewLayout];
//                layout.direction = UICollectionViewScrollDirectionVertical;
//                layout.blockPixels = CGSizeMake(100, 100);
        _collectionView = [[UICollectionView alloc] initWithFrame:collectionViewFrame collectionViewLayout:[[RFQuiltLayout alloc] init]];
        _collectionView.delegate = self;
        _collectionView.dataSource = self;

    }
    return _collectionView;
}

Is there anyway to make RFQuiltLayout with multiple section?

Hi, i've a problem with margins. How i set margin to leading and trailing to superview? My auto layout constraint are correct:

Hi everybody, thanks for such a good framework like this.

I have a problem when I try to form something like this:

What I get is this

This is the code I've used:

• (void)viewDidLoad
  {
  ...
  RFQuiltLayout* layout = (id)[self.collectionView collectionViewLayout];
  layout.direction = UICollectionViewScrollDirectionVertical;
  layout.blockPixels = CGSizeMake(150, 220);
  }
• (CGSize) blockSizeForItemAtIndexPath:(NSIndexPath *)indexPath {
  if (indexPath.row == 0) {
  return CGSizeMake(1, 0.5);
  } else {
  return CGSizeMake(1, 1);
  }
  }

Set a larger size for the UICollectionViewCells, horizontal scrolling and default 50 objects. Scroll to the end of the UICollection. Tap the Add button. You will see the the UICollectionViewCells disappearing (38 - 43) and came back on when you tap the Add button again. Any suggestion how to fix / debug this?

This is what I set for RFViewController's viewDidLoad, layout.blockPixels = CGSizeMake(310, 225), and at blockSizeForItemAtIndexPath returning only CGSizeMake(1.0, 1.0).

I wanted 3 boxes in a single row with the same size. When user taps on any box, it must get enlarged & the other items have to get aligned accordingly.

I am using the same code given in RFQuiltLayout, but made a few changes as given below.

- (void)viewDidLoad {
    .....
    RFQuiltLayout* layout = (id)[self.collectionView collectionViewLayout];
    layout.direction = UICollectionViewScrollDirectionVertical;
    layout.blockPixels = CGSizeMake(97,97);
    [self.collectionView reloadData];
}


- (void) setNumberArrays {

    [self.numbers removeAllObjects];
    [self.numberWidths removeAllObjects];
    [self.numberHeights removeAllObjects];

    for (NSInteger i = 0; i< [[self.entries objectAtIndex:0] count]; i++) {

        [self.numbers addObject:@(i)];
        if (i == AppDelegateObj.bigBoxIndex) {
            [self.numberWidths addObject:@(2)];
            [self.numberHeights addObject:@(2)];
        }
        else {
            [self.numberWidths addObject:@(1)];
            [self.numberHeights addObject:@(1)];
        }
    }
}


- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
    if (AppDelegateObj.bigBoxIndex == -1) {
        AppDelegateObj.bigBoxIndex = indexPath.row;
    }
    else {
        AppDelegateObj.bigBoxIndex = -1;
    }
    [self setNumberArrays];
    if(!self.numbers.count || indexPath.row > self.numbers.count) return;
    if(isAnimating) return;
    isAnimating = YES;
    [self.collectionView performBatchUpdates:^{
        [self.collectionView reloadData];
    } completion:^(BOOL done) {
        isAnimating = NO;
    }];
}

When user taps on a box, I am just reassigning the arrays 'self.numbers', 'self.numberWidths', 'self.numberHeights' & reloading the UICollectionView.

Suppose user taps on 2, as per the current code the below is happening,

But I want the output to look like,

Please suggest what is the change to be made on code. I tried a lot to change. But failed :(

Dear Sir
I realised that the layout chooses the best fit space to calculate position of the next element, how to make a minor change to make the position of elements by their ordinary order (to the last of the elements)

Thanks

Hello I've spent a bit of time on this and can't seem to wrap my hear around it. I am using RFQuiltLayout with a menu that alternates it between a rear and front view controller. When I bring the RFQuiltLayout from the rear to the front again, the view controller does not reload the quilt and is just black. I noticed the example contained:

• (void) viewDidAppear:(BOOL)animated {
  [self.collectionView reloadData];
  }

Which I thought would refresh the quilt. Any ideas or pointers would be greatly appreciated.

Thank you

Anyone know of equivalent project for Android using RecyclerView?
It must not use any pre-defined patterns.
RFQuiltLayout is using bin-packing algorithm, isn't it?

Carthage 0.15.2 reports this error when attempting to build RFQuiltLayout:

Dependency "RFQuiltLayout" has no shared framework schemes for any of the platforms: iOS

Hi,
I'm a iOS newbie and have a Swift project, how do I use RFQuiltLayout with it? Do I import it via ProjectName-Bridging-Header? I've copied RFQuiltLayout.m & RFQuiltLayout.h files to a folder within my project and then called #import "RFQuiltLayout.h" in the Bridging-Header file. However, when I try to change the Custom Class for the Collection View Flow Layout of a Collection View, RFQuiltLayout doesn't show up.

Would you mind updating the cocoapod? It is severely out of date

While using horizontal scrolling, even though collection view origins at (0,0), full screen size, there's space added to the top and bottom. How can we remove that

TIA

We all use content inset on top and bottom for both UITableView and UICollectionView for several purposes.

But here contentInset is missing.. If we have a property for setting the contentInset, that would be great.

Hello,

It seems that in iOS 8 RFQuiltLayout is not working well, it resize the space of each cell but the cell is not resizing at all.

What is the problem here?

This is more open for discussion than an issue. The current way to use RFQuiltLayout requires a block size which can take a long time to load if set to low numbers. I wonder if there is another way to do this that uses the regular cell sizes but is fast with a lot of small cells.

Hello. Please make delegate methods of the layout to apple style, for easy manage of multiple collection views.
Delegate mehtods:

• (CGSize) blockSizeForItemAtIndexPath:(NSIndexPath *)indexPath;
• (UIEdgeInsets) insetsForItemAtIndexPath:(NSIndexPath *)indexPath;
  i am can not recognize which grid view called them.
  So my propose is:
• (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)layout blockSizeForItemAtIndexPath:(NSIndexPath *)indexPath;
• (UIEdgeInsets) collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)layout insetsForItemAtIndexPath:(NSIndexPath *)indexPath;
  It gives elegant access to UICollectionView and its layout. Thanks. Sorry for my English.

I am trying to create sections in my view controller with respect to the QuiltViewLayoutDelegate, however it doesn't work. I am using your demo and edited the method numberOfSectionsInCollectionView. Is the problem within your third party? If so where can i find it?

Hello,
I have been playing with RFQuiltLayout.
Basically I need a layout like ZigZag tiles, something like this
|^|
|^|
|**^|

The first three rows gets drawn properly but later it auto resize the tiles and start messing with it.
Anyone can help?

Here is the code:
int counter = 4;

pragma mark – RFQuiltLayoutDelegate

- (CGSize) blockSizeForItemAtIndexPath:(NSIndexPath *)indexPath {

NSLog(@"%d and Row: %d",counter % 4, indexPath.row);

if(counter % 4 >= 2)
{
    counter++;

    if(indexPath.row >= self.numbers.count)
        NSLog(@"Asking for index paths of non-existant cells!! %d from %d cells", indexPath.row, self.numbers.count);

    if (indexPath.row % 2 == 0) {
        return CGSizeMake(2, 1);
    }else
    {
        return CGSizeMake(1, 1);
    }
}
else
{
    counter++;
    if(indexPath.row >= self.numbers.count)
        NSLog(@"Asking for index paths of non-existant cells!! %d from %d cells", indexPath.row, self.numbers.count);

    if (indexPath.row % 2 == 0) {
        return CGSizeMake(1, 1);
    }else
    {
        return CGSizeMake(2, 1);
    }
  }


}

When I tested this the demo app crashes when you remove all items and attempt to add one. I believe this happens because you mod by 0 in your add method. Just a heads up.

Hi, I use your Layout but if I want show multiple sections with headers, it's not posible, because the header section never get call. What I need to do to show multiple sections and headers??

Thanks iun advance

I believe the collectionViewContentSize should return the full size of the layout. Right now it only returns down to the furthestBlockPoint+1, so If you just load the layout, and haven't scrolled down, the content size is incorrect. This causes the scrolling indicators to jump around as you scroll and layout the rest of the cells.

I assume you are planning to implement something like this due to the unused 'prelayoutEverything' property.

I can try to take a stab at fixing it, but I will have to familiarize myself with the code, let me know if you have any suggestions.

Why not head size

Hey, I'm just wondering how I should use this for printing labels inside the cells.
If I return the label size in the blockSizeForItemAtIndexPath: method it makes the cell way to big because its multiplying it by the blockPixels or something of that nature.

Any ideas?

M

Whenever I call reloadData and I add a couple more cells the view jumps back to some start cell. This causes the experience to be really bad and feels horrible

I am laying out my block size using this

- (CGSize)blockSizeForItemAtIndexPath:(NSIndexPath *)indexPath {
    if (indexPath.row % 7 == 0){
        return CGSizeMake(3, 3);
    }
    else if(indexPath.row % 5 == 0)
        return CGSizeMake(2, 1);

    return CGSizeMake(1, 1);
}