antondomashnev / admozaiccollectionviewlayout Goto Github PK

Hi! In default collection view layout we can use 'sectionHeadersPinToVisibleBounds'. How can I pin header in this layout?

Great pod, thanks! Do you plan to implement headers/footers anytime soon? Do you have a workaround solution for a header until this is implemented?

I'm stuck here. Thanks!

hi there,
Due to the device size & orientation, how can i get proper width dynamically ?
i divide column count with collection-view width size but results not as expected.

This library works great when there is only a single section, but I was hoping that it would work with multiple sections, what I mean is the if there is not enough items in section, there will be blank space between it and next, just like it default layout

I installed version 4.0.4 but id dint have Delegate & content mode for keep order.
So how should I will have Content mode options as per document .
@Antondomashnev @cyrilchandelier

I'm getting a build error (only in our CI tool, not in XCode):

Pods/ADMozaicCollectionViewLayout/ADMozaikCollectionViewLayout/Private/ADMozaikLayoutAttributes.swift:[102,39] 'Error' is not convertible to 'CustomStringConvertible'; did you mean to use 'as!' to force downcast? » fatalError((error as CustomStringConvertible).description)

private lazy var collectionView : UICollectionView = {
let view = UICollectionView.init(frame: .zero, collectionViewLayout: ADMozaikLayout(delegate: self))
view.backgroundColor = UIColor.white
view.delegate = self
view.dataSource = self
view.register(OwohThemePlazaCollectionViewCell.self,
forCellWithReuseIdentifier: NSStringFromClass(OwohThemePlazaCollectionViewCell.self))
view.addRefreshEffect(headerRefreshBlock: { [weak self] in
self?.loadData()
}) { [weak self] in
self?.loadMore()
}
return view
}()

// MARK: - ADMozaikLayoutDelegate
extension OwohThemePlazaViewController : ADMozaikLayoutDelegate {
func collectonView(_ collectionView: UICollectionView,
mozaik layoyt: ADMozaikLayout,
geometryInfoFor section: ADMozaikLayoutSection) -> ADMozaikLayoutSectionGeometryInfo {
let rowHeight: CGFloat = itemSize.height
let columns = [ADMozaikLayoutColumn(width: itemSize.width),
ADMozaikLayoutColumn(width: itemSize.width),
ADMozaikLayoutColumn(width: itemSize.width)]
let geometryInfo = ADMozaikLayoutSectionGeometryInfo(rowHeight: rowHeight,
columns: columns,
minimumInteritemSpacing: itemSpacing,
minimumLineSpacing: itemSpacing,
sectionInset: .zero,
headerHeight: 0,
footerHeight: 0)
return geometryInfo
}

func collectionView(_ collectionView: UICollectionView,
                    mozaik layout: ADMozaikLayout,
                    mozaikSizeForItemAt indexPath: IndexPath) -> ADMozaikLayoutSize {
    if self.bigCellIndexs.contains(indexPath.item){
        return ADMozaikLayoutSize(numberOfColumns: 2, numberOfRows: 2)
    }
    return ADMozaikLayoutSize(numberOfColumns: 1, numberOfRows: 1)
}

}

Since Swift 4.2 Hashable implementation should use the hash(into hasher: inout Hasher) method instead of hashValue property

It would be great to have posibility to create ADMozaikLayout from xib or Storyboard.

Now, we have init?(coder aDecoder: NSCoder) but then we are not able to set up correctly rowHeight and columns.

`fileprivate var mosaicLayout: ADMozaikLayout {
let layout = ADMozaikLayout(delegate: self)
return layout
}
func setupCollection() {

    self.collection.collectionViewLayout.invalidateLayout()
    self.collection.setCollectionViewLayout(self.mosaicLayout, animated: true)
    
    collection.delegate = self
    collection.dataSource = self
    collection.reloadData()
    
}

extension PostGridCell: ADMozaikLayoutDelegate {

func collectionView(_ collectionView: UICollectionView, mozaik layout: ADMozaikLayout, mozaikSizeForItemAt indexPath: IndexPath) -> ADMozaikLayoutSize {
    
    
    if indexPath.item == 0 {
        return ADMozaikLayoutSize(numberOfColumns: 1, numberOfRows: 1)
    }
    if indexPath.item % 8 == 0 {
        return ADMozaikLayoutSize(numberOfColumns: 2, numberOfRows: 2)
    }
    else if indexPath.item % 6 == 0 {
        return ADMozaikLayoutSize(numberOfColumns: 3, numberOfRows: 1)
    }
    else if indexPath.item % 4 == 0 {
        return ADMozaikLayoutSize(numberOfColumns: 1, numberOfRows: 3)
    }
    else {
        return ADMozaikLayoutSize(numberOfColumns: 1, numberOfRows: 1)
    }
}

func collectonView(_ collectionView: UICollectionView, mozaik layoyt: ADMozaikLayout, geometryInfoFor section: ADMozaikLayoutSection) -> ADMozaikLayoutSectionGeometryInfo {
    let width = UIScreen.main.bounds.width/5
    
    let rowHeight: CGFloat = width//layoutType == .portrait ? 93 : 110
    let columns = [ADMozaikLayoutColumn(width: width), ADMozaikLayoutColumn(width: width), ADMozaikLayoutColumn(width: width), ADMozaikLayoutColumn(width: width)]
    
    let geometryInfo = ADMozaikLayoutSectionGeometryInfo(rowHeight: rowHeight, columns: columns,  minimumInteritemSpacing: 5,minimumLineSpacing: 5,sectionInset: UIEdgeInsets(top: 5, left: 0, bottom: 5, right: 0),headerHeight: 0, footerHeight: 0)
    return geometryInfo
}

}
extension PostGridCell : UICollectionViewDataSource,UICollectionViewDelegate{

func numberOfSections(in collectionView: UICollectionView) -> Int {
    return 1
}

func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
    return 100
}

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: PostCell.reuseIdentifier, for: indexPath)
    cell.backgroundColor = .red
    return cell
}

}
`

This is how i configured the collectionview the library crashes on Crash on ADMozaikLayoutSectionMatrixError.rowOutOfBounds

hi there,
is this library compatible with swift 3 && Xcode 8 or need an update ?

Should be https://github.com/chiahsien/CHTCollectionViewWaterfallLayout :)

Hello,

I really like the layout. However, is there a way to make this layout horizontal instead of vertical?

Thank you.

My regards.

func collectonView(_ collectionView: UICollectionView, mozaik layoyt: ADMozaikLayout, geometryInfoFor section: ADMozaikLayoutSection) -> ADMozaikLayoutSectionGeometryInfo {
let W = self.view.frame.size.width/2 // - 10
let rowHeight: CGFloat = self.view.frame.size.width/12 //W //93
let columns = [ADMozaikLayoutColumn(width: W), ADMozaikLayoutColumn(width: W), ADMozaikLayoutColumn(width: W), ADMozaikLayoutColumn(width: W)]
let geometryInfo = ADMozaikLayoutSectionGeometryInfo(rowHeight: rowHeight,
columns: columns,
minimumInteritemSpacing: 1,
minimumLineSpacing: 1,
sectionInset: UIEdgeInsets(top: 5, left: 0, bottom: 5, right: 0),
headerHeight: 1, footerHeight: 1)
return geometryInfo
}

func collectionView(_ collectionView: UICollectionView, mozaik layout: ADMozaikLayout, mozaikSizeForItemAt indexPath: IndexPath) -> ADMozaikLayoutSize {
    let image = photos[indexPath.row].image
    let aspectratio = image.size.width/image.size.height
    
    if aspectratio == 1/1 {
        return ADMozaikLayoutSize(numberOfColumns: 1, numberOfRows: 6)
    }
    if aspectratio == 2/3 {
        return ADMozaikLayoutSize(numberOfColumns: 1, numberOfRows: 9)
    }
    if aspectratio == 3/2 {
        return ADMozaikLayoutSize(numberOfColumns: 1, numberOfRows: 4)
    }
    if aspectratio == 2/1 {
        return ADMozaikLayoutSize(numberOfColumns: 1, numberOfRows: 3)
    }
    if aspectratio == 1/2 {
        return ADMozaikLayoutSize(numberOfColumns: 1, numberOfRows: 12)
    }
    else {
        return ADMozaikLayoutSize(numberOfColumns: 1, numberOfRows: 6)
    }
}

I noticed flickering in cells during scrolling. It wasn't happening while using default flow layout so I started debugging and found out that while using layout from this library, the cells are getting deallocated randomly and sometimes they just don't appear.
I placed a print statement in the deinit of my custom cell class to catch it

Since a couple versions of Xcode (probably after migration to Swift 3.0), I have this warning that I can not silent:

Instance method 'collectionView(_:layout:mozaikSizeForItemAtIndexPath:)' nearly matches optional requirement 'collectionView(_:layout:sizeForItemAt:)' of protocol 'UICollectionViewDelegateFlowLayout'

Any idea how to fix that?

Thanks,
Cyril

The original issue is addressed #4 .
Initial idea is to ask the user before orientation is changed for the new ADMozaikLayoutColumn, so then we can reload layout either with or without animation.

I have implemented the layout in my app but in some cases the cells are disappearing, like in the picture below:

I noticed that only bigger cells disappear. It would be great if you could take a look at this bug

I have data in a particular order and want to show three types of cell i.e Full, Half and Quarter. The collectionView works fine most of the times but sometimes the quarter cell which should be shown at last appears at some random place in collection view.

Currently, the way of position calculation is way not optimized. I need to find a way to speed up the process, otherwise, in a big list the layout is slow

The library needs some pods installed, but by default, it's downloaded without pods, and build crashes. If I try to install pods manually in carthage checkouts folder, it still crashes with "The sandbox is not in sync with the Podfile.lock." error.
There is no cache for swift 4 version, so, carthage doesn't use it too