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layout changes updated

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This commit is contained in:
Damodaram 2020-06-08 15:20:37 +05:30
parent 2ec4881be6
commit f4fa6d8291
2 changed files with 17 additions and 31 deletions
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1
MVMCoreUI/Atomic/Atoms/FormFields/Tags/Tags.swift
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@ -61,6 +61,7 @@ open class Tags: View, MFButtonProtocol {
let layout = UICollectionViewLeftAlignedLayout() let layout = UICollectionViewLeftAlignedLayout()
layout.estimatedItemSize = CGSize(width: 140, height: 40) layout.estimatedItemSize = CGSize(width: 140, height: 40)
layout.minimumLineSpacing = 24.0 layout.minimumLineSpacing = 24.0
layout.minimumInteritemSpacing = 12.0
return layout return layout
} }

47
MVMCoreUI/BaseClasses/UICollectionViewLeftAlignedLayout.swift
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@ -13,39 +13,24 @@ class UICollectionViewLeftAlignedLayout: UICollectionViewFlowLayout {
guard let attributes = super.layoutAttributesForElements(in: rect) else { guard let attributes = super.layoutAttributesForElements(in: rect) else {
return nil return nil
} }
var rows = [Row]() var newAttributesForElementsInRect = [UICollectionViewLayoutAttributes]()
var currentRowY: CGFloat = -1 var leftMargin: CGFloat = 0.0;
let leftPadding: CGFloat = 0
let interItemSpacing = minimumInteritemSpacing
var maxY: CGFloat = -1.0
for attribute in attributes { for attribute in attributes {
if currentRowY != attribute.frame.origin.y { if attribute.frame.origin.y >= maxY {
currentRowY = attribute.frame.origin.y leftMargin = leftPadding
rows.append(Row(spacing: 10)) } else {
var newLeftAlignedFrame = attribute.frame
newLeftAlignedFrame.origin.x = leftMargin
attribute.frame = newLeftAlignedFrame
} }
rows.last?.add(attribute: attribute) attribute.frame.origin.x = leftMargin
} leftMargin += attribute.frame.width + interItemSpacing
rows.forEach { $0.tagLayout(collectionViewWidth: collectionView?.frame.width ?? 0) } maxY = max(attribute.frame.maxY, maxY)
return rows.flatMap { $0.attributes } newAttributesForElementsInRect.append(attribute)
}
}
class Row {
var attributes = [UICollectionViewLayoutAttributes]()
var spacing: CGFloat = 0
init(spacing: CGFloat) {
self.spacing = spacing
}
func add(attribute: UICollectionViewLayoutAttributes) {
attributes.append(attribute)
}
func tagLayout(collectionViewWidth: CGFloat) {
let padding = 8
var offset = padding
for attribute in attributes {
attribute.frame.origin.x = CGFloat(offset)
offset += Int(attribute.frame.width + spacing)
} }
return newAttributesForElementsInRect
} }
} }