├── .gitignore ├── .slather.yml ├── .travis.yml ├── Art ├── StickLayout_Tabular.gif ├── StickyLayout_Calendar.gif └── StickyLayout_swimming.gif ├── LICENSE ├── README.md ├── StickyLayout.podspec ├── StickyLayout.xcodeproj ├── project.pbxproj └── xcshareddata │ └── xcschemes │ └── StickyLayout.xcscheme ├── StickyLayout ├── Info.plist ├── StickyLayout.h ├── StickyLayout.swift └── StickyLayoutConfig.swift ├── StickyLayoutTests ├── Info.plist ├── StickyLayoutConfigTests.swift └── StickyLayoutTests.swift ├── example ├── .swiftlint.yml ├── Podfile ├── Podfile.lock ├── StickyLayout.xcodeproj │ ├── project.pbxproj │ └── xcshareddata │ │ └── xcschemes │ │ └── StickyLayoutExamples.xcscheme └── StickyLayoutExamples │ ├── AppDelegate.swift │ ├── Assets.xcassets │ ├── AppIcon.appiconset │ │ └── Contents.json │ └── Contents.json │ ├── ExampleController.swift │ ├── ExamplesListController.swift │ ├── Extensions │ └── UIColor+Extension.swift │ ├── Info.plist │ ├── LabelCell.swift │ ├── SceneDelegate.swift │ ├── Storyboards │ └── Base.lproj │ │ └── LaunchScreen.storyboard │ └── ViewModels │ ├── CalendarViewModel.swift │ ├── MobileExpenseViewModel.swift │ ├── StickyCollectionViewModel.swift │ └── SwimLeaderboardViewModel.swift └── reports └── cobertura.xml /.gitignore: -------------------------------------------------------------------------------- 1 | ## Build generated 2 | build/ 3 | DerivedData/ 4 | 5 | Pods 6 | *.xcworkspace/ 7 | .idea/ 8 | xcuserdata/ 9 | *.xccheckout 10 | *.xcuserstate 11 | *.xcscmblueprint 12 | *.DS_Store 13 | StickyLayout/StickyLayout\.xcodeproj/xcuserdata/ 14 | StickyLayout/StickyLayout\.xcworkspace/xcuserdata 15 | -------------------------------------------------------------------------------- /.slather.yml: -------------------------------------------------------------------------------- 1 | coverage_service: cobertura_xml 2 | xcodeproj: StickyLayout.xcodeproj 3 | scheme: StickyLayout 4 | source_directory: StickyLayout 5 | output_directory: reports 6 | ignore: 7 | - StickyLayoutTests/* 8 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: objective-c 2 | 3 | osx_image: xcode10.3 4 | env: 5 | matrix: 6 | - TEST_SDK=iphonesimulator12.4 OS=12.4 NAME='iPhone XR' 7 | - TEST_SDK=iphonesimulator12.4 OS=12.4 NAME='iPhone 7' 8 | 9 | script: 10 | - set -o pipefail && xcodebuild test -enableCodeCoverage YES -project StickyLayout.xcodeproj -scheme StickyLayout -sdk $TEST_SDK -destination "platform=iOS Simulator,OS=$OS,name=$NAME" ONLY_ACTIVE_ARCH=YES 11 | 12 | before_install: 13 | - gem install cocoapods 14 | - gem install slather 15 | after_success: 16 | - slather 17 | - bash <(curl -s https://codecov.io/bash) -f reports/cobertura.xml -X coveragepy -X gcov -X xcode 18 | 19 | -------------------------------------------------------------------------------- /Art/StickLayout_Tabular.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/jeffreysfllo24/StickyLayout/79d8b5a48417dbd4dabb808a2cea0b583d20500b/Art/StickLayout_Tabular.gif -------------------------------------------------------------------------------- /Art/StickyLayout_Calendar.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/jeffreysfllo24/StickyLayout/79d8b5a48417dbd4dabb808a2cea0b583d20500b/Art/StickyLayout_Calendar.gif -------------------------------------------------------------------------------- /Art/StickyLayout_swimming.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/jeffreysfllo24/StickyLayout/79d8b5a48417dbd4dabb808a2cea0b583d20500b/Art/StickyLayout_swimming.gif -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2020 Jeffrey Zhang 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in 13 | all copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 21 | THE SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # StickyLayout 2 | [![codecov](https://codecov.io/gh/jeffreysfllo24/StickyLayout/branch/master/graph/badge.svg)](https://codecov.io/gh/jeffreysfllo24/StickyLayout) 3 | [![pod](https://cocoapod-badges.herokuapp.com/v/StickyLayout/badge.png)](https://cocoapods.org/pods/StickyLayout) 4 | [![Badge w/ Platform](https://cocoapod-badges.herokuapp.com/p/StickyLayout/badge.svg)](https://cocoadocs.org/pods/StickyLayout) 5 | ![License MIT](https://go-shields.herokuapp.com/license-MIT-blue.png) 6 | 7 |

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17 | 18 | ##### The above examples are accessible in the `example` folder. 19 | 20 | ## What is StickyLayout? 21 | **StickyLayout** is a collection view layout that provides sticky row and column configurability. 22 | 23 | ## Features 24 | 25 | - [X] Configurable Sticky options. 26 | - [X] Pure Swift 5. 27 | - [X] Horizontal and vertical scrolling support. 28 | - [X] Row spacing and column spacing support. 29 | - [X] Works with every `UICollectionView`. 30 | 31 | ## Setup 32 | Using **StickyLayout** quick and simple. First import `StickyLayout`. 33 | 34 | ```swift 35 | import StickyLayout 36 | ``` 37 | 38 | You then have the option of creating an instance of `StickyConfig`, where you can specify which rows/columns you want to be sticky. 39 | 40 | ```swift 41 | let stickyConfig = StickyLayoutConfig(stickyRowsFromTop: 1, 42 | stickyRowsFromBottom: 0, 43 | stickyColsFromLeft: 1, 44 | stickyColsFromRight: 0) 45 | 46 | let layout = StickyLayout(stickyConfig: stickyConfig) 47 | ``` 48 | 49 | Create an instance of `StickyLayout` with your `StickyConfig` as a parameter, and add it to your `UICollectionView`. 50 | ```swift 51 | UICollectionView(frame: .zero, collectionViewLayout: layout) 52 | ``` 53 | 54 | ## Installation 55 | StickyLayout is available through [CocoaPods](http://cocoapods.org). To install 56 | it, simply add the following line to your Podfile: 57 | 58 | ```ruby 59 | pod "StickyLayout" 60 | ``` 61 | 62 | ## Feedback and Suggestions 63 | If you have any suggestions or improvements please open a pull request or create an issue. 64 | 65 | And if you found StickyLayout useful or want to show support feel free to star this repo! 66 | -------------------------------------------------------------------------------- /StickyLayout.podspec: -------------------------------------------------------------------------------- 1 | Pod::Spec.new do |s| 2 | s.name = 'StickyLayout' 3 | s.version = '0.0.1' 4 | s.summary = 'Stick to it.' 5 | 6 | s.description = <<-DESC 7 | StickyLayout is a collection view layout that makes top/bottom rows and left/right columns fixed while the rest of the cells are scrollable. 8 | DESC 9 | 10 | s.homepage = 'https://github.com/jeffreysfllo24/StickyLayout' 11 | s.license = { :type => 'MIT', :file => 'LICENSE' } 12 | s.author = { 'Jeffrey Zhang' => 'jeffreysfllo24@gmail.com' } 13 | s.source = { :git => 'https://github.com/jeffreysfllo24/StickyLayout.git', :tag => s.version.to_s } 14 | 15 | s.ios.deployment_target = "8.0" 16 | s.source_files = 'StickyLayout/*.{h,m,swift}' 17 | 18 | s.swift_version = "5.0" 19 | end 20 | -------------------------------------------------------------------------------- /StickyLayout.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 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443 | SWIFT_VERSION = 5.0; 444 | TARGETED_DEVICE_FAMILY = "1,2"; 445 | }; 446 | name = Release; 447 | }; 448 | /* End XCBuildConfiguration section */ 449 | 450 | /* Begin XCConfigurationList section */ 451 | F826944E24636E6F00A2DF1A /* Build configuration list for PBXProject "StickyLayout" */ = { 452 | isa = XCConfigurationList; 453 | buildConfigurations = ( 454 | F826945A24636E6F00A2DF1A /* Debug */, 455 | F826945B24636E6F00A2DF1A /* Release */, 456 | ); 457 | defaultConfigurationIsVisible = 0; 458 | defaultConfigurationName = Release; 459 | }; 460 | F826945C24636E6F00A2DF1A /* Build configuration list for PBXNativeTarget "StickyLayout" */ = { 461 | isa = XCConfigurationList; 462 | buildConfigurations = ( 463 | F826945D24636E6F00A2DF1A /* Debug */, 464 | F826945E24636E6F00A2DF1A /* Release */, 465 | ); 466 | defaultConfigurationIsVisible = 0; 467 | defaultConfigurationName = Release; 468 | }; 469 | F826946B24636ECD00A2DF1A /* Build configuration list for PBXNativeTarget "StickyLayoutTests" */ = { 470 | isa = XCConfigurationList; 471 | buildConfigurations = ( 472 | F826946C24636ECD00A2DF1A /* Debug */, 473 | F826946D24636ECD00A2DF1A /* Release */, 474 | ); 475 | defaultConfigurationIsVisible = 0; 476 | defaultConfigurationName = Release; 477 | }; 478 | /* End XCConfigurationList section */ 479 | }; 480 | rootObject = F826944B24636E6F00A2DF1A /* Project object */; 481 | } 482 | -------------------------------------------------------------------------------- /StickyLayout.xcodeproj/xcshareddata/xcschemes/StickyLayout.xcscheme: -------------------------------------------------------------------------------- 1 | 2 | 5 | 8 | 9 | 15 | 21 | 22 | 23 | 24 | 25 | 31 | 32 | 34 | 40 | 41 | 42 | 43 | 44 | 54 | 55 | 61 | 62 | 68 | 69 | 70 | 71 | 73 | 74 | 77 | 78 | 79 | -------------------------------------------------------------------------------- /StickyLayout/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | $(DEVELOPMENT_LANGUAGE) 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | $(PRODUCT_BUNDLE_PACKAGE_TYPE) 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleVersion 20 | $(CURRENT_PROJECT_VERSION) 21 | 22 | 23 | -------------------------------------------------------------------------------- /StickyLayout/StickyLayout.h: -------------------------------------------------------------------------------- 1 | // 2 | // StickyLayout.h 3 | // StickyLayout 4 | // 5 | // Created by Jeffrey Zhang on 2020-05-06. 6 | // Copyright © 2020 Jeffrey Zhang. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | //! Project version number for StickyLayout. 12 | FOUNDATION_EXPORT double StickyLayoutVersionNumber; 13 | 14 | //! Project version string for StickyLayout. 15 | FOUNDATION_EXPORT const unsigned char StickyLayoutVersionString[]; 16 | 17 | // In this header, you should import all the public headers of your framework using statements like #import 18 | 19 | 20 | -------------------------------------------------------------------------------- /StickyLayout/StickyLayout.swift: -------------------------------------------------------------------------------- 1 | // 2 | // StickyLayout.swift 3 | // StickyLayout 4 | // 5 | // Created by Jeffrey Zhang on 2020-05-06. 6 | // Copyright © 2020 Jeffrey Zhang. All rights reserved. 7 | // 8 | 9 | import Foundation 10 | import UIKit 11 | 12 | open class StickyLayout: UICollectionViewFlowLayout { 13 | private let stickyConfig: StickyLayoutConfig 14 | private var cellAttrsDict = [IndexPath: UICollectionViewLayoutAttributes]() 15 | private var cellFramesDict = [IndexPath: CGRect]() 16 | private var collectionViewContentWidth: CGFloat = 0 17 | private var collectionViewContentHeight: CGFloat = 0 18 | 19 | override open var collectionViewContentSize: CGSize { 20 | return CGSize(width: collectionViewContentWidth, height: collectionViewContentHeight) 21 | } 22 | 23 | private var rows: Int { 24 | return collectionView?.numberOfSections ?? 0 25 | } 26 | 27 | private func colsCount(section: Int) -> Int { 28 | return collectionView?.numberOfItems(inSection: section) ?? 0 29 | } 30 | 31 | public init(stickyConfig: StickyLayoutConfig = StickyLayoutConfig()) { 32 | self.stickyConfig = stickyConfig 33 | super.init() 34 | } 35 | 36 | public required init?(coder: NSCoder) { 37 | fatalError("init(coder:) has not been implemented") 38 | } 39 | 40 | override open func prepare() { 41 | super.prepare() 42 | layoutCellPositions() 43 | updateStickyCellPositions() 44 | } 45 | 46 | private func layoutCellPositions() { 47 | guard let collectionView = collectionView, rows > 0 else { 48 | return 49 | } 50 | 51 | // Reset collection view attributes for new layout 52 | cellAttrsDict = [IndexPath: UICollectionViewLayoutAttributes]() 53 | cellFramesDict = [IndexPath: CGRect]() 54 | collectionViewContentWidth = 0 55 | collectionViewContentHeight = 0 56 | 57 | // Set Containing current xPos and current yPos for each column 58 | var xPos: CGFloat = 0 59 | var yPos: CGFloat = 0 60 | 61 | let bottomStickyRowsSets = stickyConfig.getBottomStickyRows(rowCount: rows) 62 | 63 | // Retrieve height of right sticky columns and bottom sticky rows 64 | var stickyColHeights = stickyCellHeights() 65 | var stickyRowWidths = stickyCellsRowWidths() 66 | 67 | for section in 0.. CGFloat { 121 | var stickyCellHeights: CGFloat = 0 122 | 123 | let bottomStickyRowsSet = stickyConfig.getBottomStickyRows(rowCount: rows) 124 | for section in bottomStickyRowsSet { 125 | guard let itemsCount = collectionView?.numberOfItems(inSection: section), itemsCount > 0 else { continue } 126 | let cellSpacing = (section == rows - 1) ? 0 : getSectionSpacing(forRow: section) 127 | var maximumCellRowHeight: CGFloat = 0 128 | for col in 0.. [Int: CGFloat] { 138 | var stickyRowWidths: [Int: CGFloat] = [:] 139 | 140 | for section in 0.. 0, !stickyConfig.getRightStickyCols(colCount: itemsCount).isEmpty else { 142 | continue 143 | } 144 | 145 | let stickyCols = stickyConfig.getRightStickyCols(colCount: itemsCount) 146 | let cellSpacing = getInterItemSpacing(forRow: section) 147 | 148 | for col in stickyCols { 149 | let cellSize = getCellSize(forRow: section, forCol: col) 150 | let cellSpacing = (col == itemsCount - 1) ? 0 : cellSpacing 151 | stickyRowWidths[section] = (stickyRowWidths[section] ?? 0) + cellSize.width + cellSpacing 152 | } 153 | } 154 | 155 | return stickyRowWidths 156 | } 157 | 158 | private func updateStickyCellPositions() { 159 | guard let collectionView = collectionView else { 160 | return 161 | } 162 | 163 | let stickyRowSet = stickyConfig.getStickyRows(rowCount: rows) 164 | 165 | for row in 0.. Bool { 190 | return true 191 | } 192 | 193 | open override func layoutAttributesForElements(in rect: CGRect) -> [UICollectionViewLayoutAttributes]? { 194 | var collectionViewAttributes: [UICollectionViewLayoutAttributes] = [] 195 | for (index, attribute) in cellAttrsDict { 196 | /// Unique case where we need to add right sticky column because collection view bounds don't update when you horizontally force scroll out of collection view content size. 197 | if stickyConfig.getRightStickyCols(colCount: colsCount(section: index.section)).contains(index.item) { 198 | collectionViewAttributes.append(attribute) 199 | } else if rect.intersects(attribute.frame) { 200 | collectionViewAttributes.append(attribute) 201 | } 202 | } 203 | return collectionViewAttributes 204 | } 205 | 206 | open override func layoutAttributesForItem(at indexPath: IndexPath) -> UICollectionViewLayoutAttributes? { 207 | return cellAttrsDict[indexPath] 208 | } 209 | 210 | private func getCellSize(forRow row: Int, forCol col: Int) -> CGSize { 211 | guard let collectionView = collectionView, 212 | let delegate = collectionView.delegate as? UICollectionViewDelegateFlowLayout, 213 | let size = delegate.collectionView?(collectionView, layout: self, sizeForItemAt: IndexPath(item: col, section: row)) else { 214 | return self.itemSize 215 | } 216 | return size 217 | } 218 | 219 | private func getSectionSpacing(forRow row: Int) -> CGFloat { 220 | guard let collectionView = collectionView, 221 | let delegate = collectionView.delegate as? UICollectionViewDelegateFlowLayout, 222 | let spacing = delegate.collectionView?(collectionView, layout: self, minimumLineSpacingForSectionAt: row) else { 223 | return self.minimumLineSpacing 224 | } 225 | return spacing 226 | } 227 | 228 | private func getInterItemSpacing(forRow row: Int) -> CGFloat { 229 | guard let collectionView = collectionView, 230 | let delegate = collectionView.delegate as? UICollectionViewDelegateFlowLayout, 231 | let spacing = delegate.collectionView?(collectionView, layout: self, minimumInteritemSpacingForSectionAt: row) else { 232 | return self.minimumInteritemSpacing 233 | } 234 | return spacing 235 | } 236 | 237 | } 238 | 239 | // MARK: - ZOrdering 240 | extension StickyLayout { 241 | 242 | private func zOrder(forRow row: Int, forCol col: Int, stickyRowSet: Set, stickyColSet: Set) -> Int { 243 | if stickyRowSet.contains(row) && stickyColSet.contains(col) { 244 | return ZOrder.staticCell 245 | } else if stickyRowSet.contains(row) || stickyColSet.contains(col) { 246 | return ZOrder.stickyCell 247 | } else { 248 | return ZOrder.basicCell 249 | } 250 | } 251 | 252 | private enum ZOrder { 253 | static let basicCell = 0 254 | static let stickyCell = 1 255 | static let staticCell = 2 256 | } 257 | } 258 | -------------------------------------------------------------------------------- /StickyLayout/StickyLayoutConfig.swift: -------------------------------------------------------------------------------- 1 | // 2 | // StickyLayoutConfig.swift 3 | // StickyLayout 4 | // 5 | // Created by Jeffrey Zhang on 2020-05-14. 6 | // Copyright © 2020 Jeffrey Zhang. All rights reserved. 7 | // 8 | 9 | import Foundation 10 | 11 | public struct StickyLayoutConfig { 12 | private let stickyRowsFromTop: Int 13 | private let stickyRowsFromBottom: Int 14 | private let stickyColsFromLeft: Int 15 | private let stickyColsFromRight: Int 16 | 17 | public init(stickyRowsFromTop: Int = 1, 18 | stickyRowsFromBottom: Int = 0, 19 | stickyColsFromLeft: Int = 1, 20 | stickyColsFromRight: Int = 0) { 21 | 22 | self.stickyRowsFromTop = stickyRowsFromTop 23 | self.stickyRowsFromBottom = stickyRowsFromBottom 24 | self.stickyColsFromLeft = stickyColsFromLeft 25 | self.stickyColsFromRight = stickyColsFromRight 26 | } 27 | 28 | public func getStickyRows(rowCount: Int) -> Set { 29 | return getTopStickyRows(rowCount: rowCount).union(getBottomStickyRows(rowCount: rowCount)) 30 | } 31 | 32 | public func getStickyCols(colCount: Int) -> Set { 33 | return getLeftStickyCols(colCount: colCount).union(getRightStickyCols(colCount: colCount)) 34 | } 35 | 36 | public func getLeftStickyCols(colCount: Int) -> Set { 37 | return getStickySet(totalLength: colCount, startIndex: 0, stickyCount: stickyColsFromLeft) 38 | } 39 | 40 | public func getRightStickyCols(colCount: Int) -> Set { 41 | return getStickySet(totalLength: colCount, startIndex: colCount - stickyColsFromRight, stickyCount: stickyColsFromRight) 42 | } 43 | 44 | public func getBottomStickyRows(rowCount: Int) -> Set { 45 | return getStickySet(totalLength: rowCount, startIndex: rowCount - stickyRowsFromBottom, stickyCount: stickyRowsFromBottom) 46 | } 47 | 48 | public func getTopStickyRows(rowCount: Int) -> Set { 49 | return getStickySet(totalLength: rowCount, startIndex: 0, stickyCount: stickyRowsFromTop) 50 | } 51 | 52 | private func getStickySet(totalLength: Int, startIndex: Int, stickyCount: Int) -> Set { 53 | let stickySetCount = min(totalLength, stickyCount) 54 | let startIndex = max(startIndex, 0) 55 | return stickySetCount > 0 ? Set(startIndex...startIndex + stickySetCount - 1) : Set() 56 | } 57 | } 58 | -------------------------------------------------------------------------------- /StickyLayoutTests/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | $(DEVELOPMENT_LANGUAGE) 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | $(PRODUCT_BUNDLE_PACKAGE_TYPE) 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleVersion 20 | 1 21 | 22 | 23 | -------------------------------------------------------------------------------- /StickyLayoutTests/StickyLayoutConfigTests.swift: -------------------------------------------------------------------------------- 1 | // 2 | // StickyLayoutConfigTests.swift 3 | // StickyLayoutTests 4 | // 5 | // Created by Jeffrey Zhang on 2020-05-12. 6 | // Copyright © 2020 Jeffrey Zhang. All rights reserved. 7 | // 8 | 9 | @testable import StickyLayout 10 | import XCTest 11 | 12 | class StickyLayoutConfigTests: XCTestCase { 13 | let emptySet = Set() 14 | 15 | // MARK: - Sticky Config Tests 16 | func testEmptyStickyConfigWithEmptyLayout() throws { 17 | let emptyStickyConfig = StickyLayoutConfig(stickyRowsFromTop: 0, 18 | stickyRowsFromBottom: 0, 19 | stickyColsFromLeft: 0, 20 | stickyColsFromRight: 0) 21 | XCTAssertEqual(emptyStickyConfig.getBottomStickyRows(rowCount: 0), emptySet) 22 | XCTAssertEqual(emptyStickyConfig.getTopStickyRows(rowCount: 0), emptySet) 23 | XCTAssertEqual(emptyStickyConfig.getLeftStickyCols(colCount: 0), emptySet) 24 | XCTAssertEqual(emptyStickyConfig.getRightStickyCols(colCount: 0), emptySet) 25 | XCTAssertEqual(emptyStickyConfig.getStickyRows(rowCount: 0), emptySet) 26 | XCTAssertEqual(emptyStickyConfig.getStickyCols(colCount: 0), emptySet) 27 | } 28 | 29 | func testEmptyStickyConfigWithPopulatedLayout() throws { 30 | let emptyStickyConfig = StickyLayoutConfig(stickyRowsFromTop: 0, 31 | stickyRowsFromBottom: 0, 32 | stickyColsFromLeft: 0, 33 | stickyColsFromRight: 0) 34 | XCTAssertEqual(emptyStickyConfig.getBottomStickyRows(rowCount: 100), emptySet) 35 | XCTAssertEqual(emptyStickyConfig.getTopStickyRows(rowCount: 100), emptySet) 36 | XCTAssertEqual(emptyStickyConfig.getLeftStickyCols(colCount: 100), emptySet) 37 | XCTAssertEqual(emptyStickyConfig.getRightStickyCols(colCount: 100), emptySet) 38 | 39 | XCTAssertEqual(emptyStickyConfig.getStickyRows(rowCount: 100), emptySet) 40 | 41 | XCTAssertEqual(emptyStickyConfig.getStickyCols(colCount: 100), emptySet) 42 | } 43 | 44 | func testDefaultStickyConfig() throws { 45 | let defaultStickyConfig = StickyLayoutConfig() 46 | let defaultSet = Set([0]) 47 | 48 | XCTAssertEqual(defaultStickyConfig.getBottomStickyRows(rowCount: 100), emptySet) 49 | XCTAssertEqual(defaultStickyConfig.getBottomStickyRows(rowCount: 2), emptySet) 50 | 51 | XCTAssertEqual(defaultStickyConfig.getTopStickyRows(rowCount: 100), defaultSet) 52 | XCTAssertEqual(defaultStickyConfig.getTopStickyRows(rowCount: 1), defaultSet) 53 | 54 | XCTAssertEqual(defaultStickyConfig.getLeftStickyCols(colCount: 100), defaultSet) 55 | XCTAssertEqual(defaultStickyConfig.getLeftStickyCols(colCount: 1), defaultSet) 56 | 57 | XCTAssertEqual(defaultStickyConfig.getRightStickyCols(colCount: 100), emptySet) 58 | XCTAssertEqual(defaultStickyConfig.getRightStickyCols(colCount: 12), emptySet) 59 | 60 | XCTAssertEqual(defaultStickyConfig.getStickyRows(rowCount: 100), defaultSet) 61 | XCTAssertEqual(defaultStickyConfig.getStickyRows(rowCount: 1), defaultSet) 62 | 63 | XCTAssertEqual(defaultStickyConfig.getStickyCols(colCount: 100), defaultSet) 64 | XCTAssertEqual(defaultStickyConfig.getStickyCols(colCount: 1), defaultSet) 65 | } 66 | 67 | func testDefaultStickyConfigEmptyLayout() throws { 68 | let defaultStickyConfig = StickyLayoutConfig() 69 | 70 | XCTAssertEqual(defaultStickyConfig.getBottomStickyRows(rowCount: 0), emptySet) 71 | XCTAssertEqual(defaultStickyConfig.getTopStickyRows(rowCount: 0), emptySet) 72 | XCTAssertEqual(defaultStickyConfig.getLeftStickyCols(colCount: 0), emptySet) 73 | XCTAssertEqual(defaultStickyConfig.getRightStickyCols(colCount: 0), emptySet) 74 | 75 | XCTAssertEqual(defaultStickyConfig.getStickyRows(rowCount: 0), emptySet) 76 | 77 | XCTAssertEqual(defaultStickyConfig.getStickyCols(colCount: 0), emptySet) 78 | } 79 | 80 | func testNormalStickyConfig() throws { 81 | let defaultStickyConfig = StickyLayoutConfig(stickyRowsFromTop: 1, 82 | stickyRowsFromBottom: 2, 83 | stickyColsFromLeft: 1, 84 | stickyColsFromRight: 1) 85 | 86 | XCTAssertEqual(defaultStickyConfig.getBottomStickyRows(rowCount: 50), Set([48, 49])) 87 | XCTAssertEqual(defaultStickyConfig.getTopStickyRows(rowCount: 50), Set([0])) 88 | XCTAssertEqual(defaultStickyConfig.getLeftStickyCols(colCount: 50), Set([0])) 89 | XCTAssertEqual(defaultStickyConfig.getRightStickyCols(colCount: 50), Set([49])) 90 | 91 | XCTAssertEqual(defaultStickyConfig.getStickyRows(rowCount: 50), Set([0, 48, 49])) 92 | XCTAssertEqual(defaultStickyConfig.getStickyCols(colCount: 50), Set([0, 49])) 93 | } 94 | 95 | func testOverlappingStickyConfig() throws { 96 | let stickyConfig = StickyLayoutConfig(stickyRowsFromTop: 5, 97 | stickyRowsFromBottom: 3, 98 | stickyColsFromLeft: 2, 99 | stickyColsFromRight: 10) 100 | XCTAssertEqual(stickyConfig.getBottomStickyRows(rowCount: 3), Set([0, 1, 2])) 101 | XCTAssertEqual(stickyConfig.getTopStickyRows(rowCount: 5), Set([0, 1, 2, 3, 4])) 102 | XCTAssertEqual(stickyConfig.getLeftStickyCols(colCount: 7), Set([0, 1])) 103 | XCTAssertEqual(stickyConfig.getRightStickyCols(colCount: 10), Set([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])) 104 | 105 | XCTAssertEqual(stickyConfig.getStickyRows(rowCount: 4), Set([0, 1, 2, 3])) 106 | XCTAssertEqual(stickyConfig.getStickyRows(rowCount: 5), Set([0, 1, 2, 3, 4])) 107 | 108 | XCTAssertEqual(stickyConfig.getStickyCols(colCount: 10), Set([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])) 109 | } 110 | 111 | func testOverflowingStickyConfig() throws { 112 | let stickyConfig = StickyLayoutConfig(stickyRowsFromTop: 500, 113 | stickyRowsFromBottom: 300, 114 | stickyColsFromLeft: 200, 115 | stickyColsFromRight: 100) 116 | XCTAssertEqual(stickyConfig.getBottomStickyRows(rowCount: 3), Set([0, 1, 2])) 117 | XCTAssertEqual(stickyConfig.getTopStickyRows(rowCount: 5), Set([0, 1, 2, 3, 4])) 118 | XCTAssertEqual(stickyConfig.getLeftStickyCols(colCount: 2), Set([0, 1])) 119 | XCTAssertEqual(stickyConfig.getRightStickyCols(colCount: 10), Set([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])) 120 | XCTAssertEqual(stickyConfig.getStickyRows(rowCount: 4), Set([0, 1, 2, 3])) 121 | 122 | XCTAssertEqual(stickyConfig.getStickyCols(colCount: 10), Set([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])) 123 | } 124 | 125 | 126 | } 127 | -------------------------------------------------------------------------------- /StickyLayoutTests/StickyLayoutTests.swift: -------------------------------------------------------------------------------- 1 | // 2 | // StickyLayoutTests.swift 3 | // StickyLayoutTests 4 | // 5 | // Created by Jeffrey Zhang on 2020-05-06. 6 | // Copyright © 2020 Jeffrey Zhang. All rights reserved. 7 | // 8 | 9 | @testable import StickyLayout 10 | import UIKit 11 | import XCTest 12 | 13 | class StickyLayoutTests: XCTestCase { 14 | 15 | var collectionView: UICollectionView! 16 | var mockDataProvider: MockDataProvider! 17 | var stickylayout: StickyLayout! 18 | 19 | var dataModel = [[0, 1, 2], [3, 4, 5], [6, 7]] 20 | 21 | class MockDataProvider: NSObject, UICollectionViewDataSource, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout { 22 | weak var parent: StickyLayoutTests! = nil 23 | 24 | func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { 25 | return parent.dataModel[section].count 26 | } 27 | func numberOfSections(in collectionView: UICollectionView) -> Int { 28 | return parent.dataModel.count 29 | } 30 | 31 | func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { 32 | let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for: indexPath) 33 | return cell 34 | } 35 | 36 | func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, 37 | sizeForItemAt indexPath: IndexPath) -> CGSize { 38 | return CGSize(width: 120, height: 120) 39 | } 40 | 41 | func collectionView(_ collectionView: UICollectionView, 42 | layout collectionViewLayout: UICollectionViewLayout, 43 | minimumLineSpacingForSectionAt section: Int) -> CGFloat { 44 | return 0 45 | } 46 | 47 | func collectionView(_ collectionView: UICollectionView, 48 | layout collectionViewLayout: UICollectionViewLayout, 49 | minimumInteritemSpacingForSectionAt section: Int) -> CGFloat { 50 | return 0 51 | } 52 | } 53 | 54 | override func setUp() { 55 | super.setUp() 56 | mockDataProvider = MockDataProvider() 57 | mockDataProvider.parent = self 58 | self.dataModel = [[0, 1, 2], [3, 4, 5], [6, 7]] 59 | self.stickylayout = StickyLayout(stickyConfig: StickyLayoutConfig(stickyRowsFromTop: 1, 60 | stickyRowsFromBottom: 1, 61 | stickyColsFromLeft: 1, 62 | stickyColsFromRight: 1)) 63 | collectionView = UICollectionView(frame: .zero, collectionViewLayout: stickylayout) 64 | collectionView.register(UICollectionViewCell.self, forCellWithReuseIdentifier: "Cell") 65 | collectionView.delegate = mockDataProvider 66 | collectionView.dataSource = mockDataProvider 67 | } 68 | 69 | func testCollectionViewCellsCount() { 70 | XCTAssertEqual(mockDataProvider.numberOfSections(in: collectionView), 3) 71 | XCTAssertEqual(mockDataProvider.collectionView(collectionView, numberOfItemsInSection: 0), 3) 72 | XCTAssertEqual(mockDataProvider.collectionView(collectionView, numberOfItemsInSection: 1), 3) 73 | XCTAssertEqual(mockDataProvider.collectionView(collectionView, numberOfItemsInSection: 2), 2) 74 | } 75 | 76 | func testCollectionViewContentSizeAfterSectionDeletion() { 77 | stickylayout.prepare() 78 | XCTAssertEqual(stickylayout.collectionViewContentSize, CGSize(width: 360, height: 360)) 79 | self.dataModel.remove(at: 2) 80 | self.collectionView.deleteSections(IndexSet(arrayLiteral: 2)) 81 | XCTAssertEqual(stickylayout.collectionViewContentSize, CGSize(width: 360, height: 240)) 82 | } 83 | 84 | func testCollectionViewContentSizeAfterSectionInsertion() { 85 | stickylayout.prepare() 86 | XCTAssertEqual(stickylayout.collectionViewContentSize, CGSize(width: 360, height: 360)) 87 | self.dataModel.append([8, 9, 10]) 88 | self.collectionView.insertSections(IndexSet(arrayLiteral: 3)) 89 | XCTAssertEqual(stickylayout.collectionViewContentSize, CGSize(width: 360, height: 480)) 90 | } 91 | 92 | func testCollectionViewContentSizeAfterItemDeletion() { 93 | stickylayout.prepare() 94 | XCTAssertEqual(stickylayout.collectionViewContentSize, CGSize(width: 360, height: 360)) 95 | self.dataModel[0] = [0, 1] 96 | self.dataModel[1] = [2, 3] 97 | self.collectionView.deleteItems(at: [IndexPath(item: 2, section: 0), IndexPath(item: 2, section: 1)]) 98 | XCTAssertEqual(stickylayout.collectionViewContentSize, CGSize(width: 240, height: 360)) 99 | } 100 | 101 | func testCollectionViewContentSizeAfterItemInsertion() { 102 | stickylayout.prepare() 103 | XCTAssertEqual(stickylayout.collectionViewContentSize, CGSize(width: 360, height: 360)) 104 | self.dataModel[0].append(5) 105 | self.collectionView.insertItems(at: [IndexPath(item: 3, section: 0)]) 106 | XCTAssertEqual(stickylayout.collectionViewContentSize, CGSize(width: 480, height: 360)) 107 | } 108 | 109 | func testCollectionViewLayoutAttributes() { 110 | stickylayout.prepare() 111 | let visibleCells = stickylayout.layoutAttributesForElements(in: CGRect(x: 0, y: 0, width: 375, height: 800)) 112 | XCTAssertEqual(visibleCells?.count, 7) 113 | } 114 | 115 | func testPerformanceExample() throws { 116 | // This is an example of a performance test case. 117 | measure { 118 | // Put the code you want to measure the time of here. 119 | } 120 | } 121 | 122 | } 123 | 124 | -------------------------------------------------------------------------------- /example/.swiftlint.yml: -------------------------------------------------------------------------------- 1 | excluded: 2 | - Carthage 3 | - Pods 4 | - StickyLayoutExamples/SceneDelegate.swift 5 | - StickyLayoutExamples/AppDelegate.swift 6 | disabled_rules: 7 | - todo 8 | - trailing_whitespace 9 | line_length: 150 10 | file_length: 500 11 | function_body_length: 60 12 | -------------------------------------------------------------------------------- /example/Podfile: -------------------------------------------------------------------------------- 1 | # Uncomment the next line to define a global platform for your project 2 | # platform :ios, '9.0' 3 | 4 | target 'StickyLayoutExamples' do 5 | # Comment the next line if you don't want to use dynamic frameworks 6 | use_frameworks! 7 | 8 | # Pods for StickyLayout 9 | pod 'SwiftLint', '~> 0.39.2' 10 | pod 'StickyLayout', :path => '../' 11 | 12 | end 13 | 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473 | }; 474 | /* End XCConfigurationList section */ 475 | }; 476 | rootObject = F87E467A2458D35700F384CC /* Project object */; 477 | } 478 | -------------------------------------------------------------------------------- /example/StickyLayout.xcodeproj/xcshareddata/xcschemes/StickyLayoutExamples.xcscheme: -------------------------------------------------------------------------------- 1 | 2 | 5 | 8 | 9 | 15 | 21 | 22 | 23 | 24 | 25 | 31 | 32 | 33 | 34 | 44 | 46 | 52 | 53 | 54 | 55 | 61 | 63 | 69 | 70 | 71 | 72 | 74 | 75 | 78 | 79 | 80 | -------------------------------------------------------------------------------- /example/StickyLayoutExamples/AppDelegate.swift: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.swift 3 | // StickyLayout 4 | // 5 | // Created by Jeffrey Zhang on 2020-04-28. 6 | // Copyright © 2020 Jeffrey Zhang. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | @UIApplicationMain 12 | class AppDelegate: UIResponder, UIApplicationDelegate { 13 | 14 | func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool { 15 | // Override point for customization after application launch. 16 | return true 17 | } 18 | 19 | // MARK: UISceneSession Lifecycle 20 | 21 | func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration { 22 | // Called when a new scene session is being created. 23 | // Use this method to select a configuration to create the new scene with. 24 | return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role) 25 | } 26 | 27 | func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set) { 28 | // Called when the user discards a scene session. 29 | // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions. 30 | // Use this method to release any resources that were specific to the discarded scenes, as they will not return. 31 | } 32 | } 33 | -------------------------------------------------------------------------------- /example/StickyLayoutExamples/Assets.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "iphone", 5 | "scale" : "2x", 6 | "size" : "20x20" 7 | }, 8 | { 9 | "idiom" : "iphone", 10 | "scale" : "3x", 11 | "size" : "20x20" 12 | }, 13 | { 14 | "idiom" : "iphone", 15 | "scale" : "2x", 16 | "size" : "29x29" 17 | }, 18 | { 19 | "idiom" : "iphone", 20 | "scale" : "3x", 21 | "size" : "29x29" 22 | }, 23 | { 24 | "idiom" : "iphone", 25 | "scale" : "2x", 26 | "size" : "40x40" 27 | }, 28 | { 29 | "idiom" : "iphone", 30 | "scale" : "3x", 31 | "size" : "40x40" 32 | }, 33 | { 34 | "idiom" : "iphone", 35 | "scale" : "2x", 36 | "size" : "60x60" 37 | }, 38 | { 39 | "idiom" : "iphone", 40 | "scale" : "3x", 41 | "size" : "60x60" 42 | }, 43 | { 44 | "idiom" : "ipad", 45 | "scale" : "1x", 46 | "size" : "20x20" 47 | }, 48 | { 49 | "idiom" : "ipad", 50 | "scale" : "2x", 51 | "size" : "20x20" 52 | }, 53 | { 54 | "idiom" : "ipad", 55 | "scale" : "1x", 56 | "size" : "29x29" 57 | }, 58 | { 59 | "idiom" : "ipad", 60 | "scale" : "2x", 61 | "size" : "29x29" 62 | }, 63 | { 64 | "idiom" : "ipad", 65 | "scale" : "1x", 66 | "size" : "40x40" 67 | }, 68 | { 69 | "idiom" : "ipad", 70 | "scale" : "2x", 71 | "size" : "40x40" 72 | }, 73 | { 74 | "idiom" : "ipad", 75 | "scale" : "1x", 76 | "size" : "76x76" 77 | }, 78 | { 79 | "idiom" : "ipad", 80 | "scale" : "2x", 81 | "size" : "76x76" 82 | }, 83 | { 84 | "idiom" : "ipad", 85 | "scale" : "2x", 86 | "size" : "83.5x83.5" 87 | }, 88 | { 89 | "idiom" : "ios-marketing", 90 | "scale" : "1x", 91 | "size" : "1024x1024" 92 | } 93 | ], 94 | "info" : { 95 | "author" : "xcode", 96 | "version" : 1 97 | } 98 | } 99 | -------------------------------------------------------------------------------- /example/StickyLayoutExamples/Assets.xcassets/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "author" : "xcode", 4 | "version" : 1 5 | } 6 | } 7 | -------------------------------------------------------------------------------- /example/StickyLayoutExamples/ExampleController.swift: -------------------------------------------------------------------------------- 1 | // 2 | // ExampleController.swift 3 | // StickyLayout 4 | // 5 | // Created by Jeffrey Zhang on 2020-05-02. 6 | // Copyright © 2020 Jeffrey Zhang. All rights reserved. 7 | // 8 | 9 | import Foundation 10 | import UIKit 11 | import StickyLayout 12 | 13 | class ExampleStickyController: UIViewController { 14 | 15 | let stickyLayoutType: StickyLayoutTypes 16 | let numberOfItems = 5 17 | let stickyCollectionViewModel: StickyCollectionViewModel 18 | 19 | init(stickLayoutType: StickyLayoutTypes) { 20 | stickyLayoutType = stickLayoutType 21 | switch stickyLayoutType { 22 | case .calendar: 23 | self.stickyCollectionViewModel = CalendarViewModel() 24 | case .tabular: 25 | self.stickyCollectionViewModel = MobileExpenseViewModel() 26 | case .horizontal: 27 | self.stickyCollectionViewModel = SwimLeaderboardViewModel() 28 | } 29 | super.init(nibName: nil, bundle: nil) 30 | } 31 | 32 | override func viewDidLoad() { 33 | super.viewDidLoad() 34 | self.view.backgroundColor = .white 35 | self.view.clipsToBounds = true 36 | 37 | let collectionView = createCollectionView() 38 | view.addSubview(collectionView) 39 | 40 | var topSafeAreaHeight: CGFloat = 0 41 | var bottomSafeAreaHeight: CGFloat = 0 42 | if #available(iOS 11.0, *) { 43 | let window = UIApplication.shared.windows[0] 44 | let safeFrame = window.safeAreaLayoutGuide.layoutFrame 45 | topSafeAreaHeight = safeFrame.minY 46 | bottomSafeAreaHeight = window.frame.maxY - safeFrame.maxY 47 | } 48 | NSLayoutConstraint.activate([ 49 | collectionView.topAnchor.constraint(equalTo: view.topAnchor, constant: 50 | navigationController?.navigationBar.frame.maxY ?? topSafeAreaHeight), 51 | collectionView.leftAnchor.constraint(equalTo: view.leftAnchor, constant: 0), 52 | collectionView.bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: -bottomSafeAreaHeight), 53 | collectionView.rightAnchor.constraint(equalTo: view.rightAnchor, constant: 0) 54 | ]) 55 | } 56 | 57 | private func createCollectionView() -> UICollectionView { 58 | let stickyLayout = StickyLayout(stickyConfig: stickyCollectionViewModel.stickyConfig) 59 | let collectionView = UICollectionView(frame: .zero, collectionViewLayout: stickyLayout) 60 | collectionView.translatesAutoresizingMaskIntoConstraints = false 61 | collectionView.delegate = self 62 | collectionView.dataSource = self 63 | collectionView.showsVerticalScrollIndicator = false 64 | collectionView.showsHorizontalScrollIndicator = false 65 | collectionView.backgroundColor = stickyCollectionViewModel.backgroundColor() 66 | collectionView.register(LabelCell.self, forCellWithReuseIdentifier: LabelCell.reuseIdentifier) 67 | return collectionView 68 | } 69 | 70 | required init?(coder: NSCoder) { 71 | fatalError("init(coder:) has not been implemented") 72 | } 73 | } 74 | 75 | extension ExampleStickyController: UICollectionViewDataSource { 76 | func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { 77 | return stickyCollectionViewModel.colCount(forRow: section) 78 | } 79 | 80 | func numberOfSections(in collectionView: UICollectionView) -> Int { 81 | return stickyCollectionViewModel.rowCount 82 | } 83 | 84 | func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { 85 | return collectionView.dequeueReusableCell(withReuseIdentifier: LabelCell.reuseIdentifier, for: indexPath) 86 | } 87 | 88 | func collectionView(_ collectionView: UICollectionView, willDisplay cell: UICollectionViewCell, forItemAt indexPath: IndexPath) { 89 | stickyCollectionViewModel.setCellStyle(collectionView: collectionView, indexPath: indexPath, cell: cell) 90 | } 91 | } 92 | 93 | extension ExampleStickyController: UICollectionViewDelegateFlowLayout { 94 | func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, 95 | sizeForItemAt indexPath: IndexPath) -> CGSize { 96 | return stickyCollectionViewModel.getCellSize(indexPath: indexPath) 97 | } 98 | 99 | func collectionView(_ collectionView: UICollectionView, 100 | layout collectionViewLayout: UICollectionViewLayout, 101 | minimumLineSpacingForSectionAt section: Int) -> CGFloat { 102 | return stickyCollectionViewModel.sectionSpacing() 103 | } 104 | 105 | func collectionView(_ collectionView: UICollectionView, 106 | layout collectionViewLayout: UICollectionViewLayout, 107 | minimumInteritemSpacingForSectionAt section: Int) -> CGFloat { 108 | return stickyCollectionViewModel.interItemSpacing() 109 | } 110 | } 111 | -------------------------------------------------------------------------------- /example/StickyLayoutExamples/ExamplesListController.swift: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.swift 3 | // StickyLayout 4 | // 5 | // Created by Jeffrey Zhang on 2020-04-28. 6 | // Copyright © 2020 Jeffrey Zhang. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | public enum StickyLayoutTypes { 12 | case calendar 13 | case tabular 14 | case horizontal 15 | 16 | func title() -> String { 17 | switch self { 18 | case .calendar: 19 | return "Calendar" 20 | case .tabular: 21 | return "Tabular" 22 | case .horizontal: 23 | return "Horizontal" 24 | } 25 | } 26 | } 27 | 28 | class ExamplesListController: UITableViewController { 29 | 30 | private let examples: [StickyLayoutTypes] = [.calendar, .tabular, .horizontal] 31 | 32 | override func viewDidLoad() { 33 | super.viewDidLoad() 34 | // Do any additional setup after loading the view. 35 | title = "Sticky Layout Examples" 36 | self.view.backgroundColor = .white 37 | tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell") 38 | } 39 | 40 | override func viewWillAppear(_ animated: Bool) { 41 | super.viewWillAppear(animated) 42 | } 43 | 44 | override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { 45 | return examples.count 46 | } 47 | 48 | override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat { 49 | return 40 50 | } 51 | 52 | override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { 53 | let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) 54 | cell.textLabel?.text = examples[indexPath.row].title() 55 | return cell 56 | } 57 | 58 | override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { 59 | navigationController?.pushViewController(ExampleStickyController(stickLayoutType: examples[indexPath.row]), animated: true) 60 | } 61 | } 62 | -------------------------------------------------------------------------------- /example/StickyLayoutExamples/Extensions/UIColor+Extension.swift: -------------------------------------------------------------------------------- 1 | // 2 | // UIColor+Extension.swift 3 | // StickyLayoutExamples 4 | // 5 | // Created by Jeffrey Zhang on 2020-05-07. 6 | // Copyright © 2020 Jeffrey Zhang. All rights reserved. 7 | // 8 | 9 | import Foundation 10 | import UIKit 11 | 12 | extension UIColor { 13 | public convenience init?(hex: String) { 14 | let red, green, blue, alpha: CGFloat 15 | 16 | if hex.hasPrefix("#") { 17 | let start = hex.index(hex.startIndex, offsetBy: 1) 18 | let hexColor = String(hex[start...]) 19 | 20 | if hexColor.count == 8 { 21 | let scanner = Scanner(string: hexColor) 22 | var hexNumber: UInt64 = 0 23 | 24 | if scanner.scanHexInt64(&hexNumber) { 25 | red = CGFloat((hexNumber & 0xff000000) >> 24) / 255 26 | green = CGFloat((hexNumber & 0x00ff0000) >> 16) / 255 27 | blue = CGFloat((hexNumber & 0x0000ff00) >> 8) / 255 28 | alpha = CGFloat(hexNumber & 0x000000ff) / 255 29 | 30 | self.init(red: red, green: green, blue: blue, alpha: alpha) 31 | return 32 | } 33 | } 34 | } 35 | return nil 36 | } 37 | } 38 | -------------------------------------------------------------------------------- /example/StickyLayoutExamples/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | $(DEVELOPMENT_LANGUAGE) 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | $(PRODUCT_BUNDLE_PACKAGE_TYPE) 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleVersion 20 | 1 21 | LSRequiresIPhoneOS 22 | 23 | UIApplicationSceneManifest 24 | 25 | UIApplicationSupportsMultipleScenes 26 | 27 | UISceneConfigurations 28 | 29 | UIWindowSceneSessionRoleApplication 30 | 31 | 32 | UISceneConfigurationName 33 | Default Configuration 34 | UISceneDelegateClassName 35 | $(PRODUCT_MODULE_NAME).SceneDelegate 36 | 37 | 38 | 39 | 40 | UILaunchStoryboardName 41 | LaunchScreen 42 | UIRequiredDeviceCapabilities 43 | 44 | armv7 45 | 46 | UISupportedInterfaceOrientations 47 | 48 | UIInterfaceOrientationPortrait 49 | 50 | UISupportedInterfaceOrientations~ipad 51 | 52 | UIInterfaceOrientationPortrait 53 | UIInterfaceOrientationPortraitUpsideDown 54 | UIInterfaceOrientationLandscapeLeft 55 | UIInterfaceOrientationLandscapeRight 56 | 57 | 58 | 59 | -------------------------------------------------------------------------------- /example/StickyLayoutExamples/LabelCell.swift: -------------------------------------------------------------------------------- 1 | // 2 | // CalendarCells.swift 3 | // StickyLayout 4 | // 5 | // Created by Jeffrey Zhang on 2020-05-04. 6 | // Copyright © 2020 Jeffrey Zhang. All rights reserved. 7 | // 8 | 9 | import Foundation 10 | import UIKit 11 | 12 | protocol Cell: UICollectionViewCell { 13 | static var reuseIdentifier: String { get } 14 | } 15 | 16 | public class LabelCell: UICollectionViewCell, Cell { 17 | 18 | static let reuseIdentifier: String = "LabelCell" 19 | lazy var label = UILabel() 20 | 21 | override init(frame: CGRect) { 22 | super.init(frame: frame) 23 | label.textAlignment = .center 24 | self.contentView.addSubview(label) 25 | } 26 | 27 | required init?(coder: NSCoder) { 28 | fatalError("init(coder:) has not been implemented") 29 | } 30 | } 31 | -------------------------------------------------------------------------------- /example/StickyLayoutExamples/SceneDelegate.swift: -------------------------------------------------------------------------------- 1 | // 2 | // SceneDelegate.swift 3 | // StickyLayout 4 | // 5 | // Created by Jeffrey Zhang on 2020-04-28. 6 | // Copyright © 2020 Jeffrey Zhang. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | class SceneDelegate: UIResponder, UIWindowSceneDelegate { 12 | 13 | var window: UIWindow? 14 | 15 | func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) { 16 | // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`. 17 | // If using a storyboard, the `window` property will automatically be initialized and attached to the scene. 18 | // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead). 19 | guard let windowScene = (scene as? UIWindowScene) else { return } 20 | 21 | let navigationController = UINavigationController(rootViewController: ExamplesListController()) 22 | window = UIWindow(frame: UIScreen.main.bounds) 23 | window?.rootViewController = navigationController 24 | window?.windowScene = windowScene 25 | window?.makeKeyAndVisible() 26 | } 27 | 28 | func sceneDidDisconnect(_ scene: UIScene) { 29 | // Called as the scene is being released by the system. 30 | // This occurs shortly after the scene enters the background, or when its session is discarded. 31 | // Release any resources associated with this scene that can be re-created the next time the scene connects. 32 | // The scene may re-connect later, as its session was not neccessarily discarded (see `application:didDiscardSceneSessions` instead). 33 | } 34 | 35 | func sceneDidBecomeActive(_ scene: UIScene) { 36 | // Called when the scene has moved from an inactive state to an active state. 37 | // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive. 38 | } 39 | 40 | func sceneWillResignActive(_ scene: UIScene) { 41 | // Called when the scene will move from an active state to an inactive state. 42 | // This may occur due to temporary interruptions (ex. an incoming phone call). 43 | } 44 | 45 | func sceneWillEnterForeground(_ scene: UIScene) { 46 | // Called as the scene transitions from the background to the foreground. 47 | // Use this method to undo the changes made on entering the background. 48 | } 49 | 50 | func sceneDidEnterBackground(_ scene: UIScene) { 51 | // Called as the scene transitions from the foreground to the background. 52 | // Use this method to save data, release shared resources, and store enough scene-specific state information 53 | // to restore the scene back to its current state. 54 | } 55 | 56 | } 57 | -------------------------------------------------------------------------------- /example/StickyLayoutExamples/Storyboards/Base.lproj/LaunchScreen.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /example/StickyLayoutExamples/ViewModels/CalendarViewModel.swift: -------------------------------------------------------------------------------- 1 | // 2 | // CalendarViewModel.swift 3 | // StickyLayoutExamples 4 | // 5 | // Created by Jeffrey Zhang on 2020-05-07. 6 | // Copyright © 2020 Jeffrey Zhang. All rights reserved. 7 | // 8 | 9 | import Foundation 10 | import StickyLayout 11 | 12 | public class CalendarViewModel: StickyCollectionViewModel { 13 | var stickyConfig = StickyLayoutConfig(stickyRowsFromTop: 1, 14 | stickyRowsFromBottom: 0, 15 | stickyColsFromLeft: 1, 16 | stickyColsFromRight: 0) 17 | 18 | private let cellText = [ 19 | ["May 2020"], 20 | ["", "Mon", "Tue", "Wed", "Thur", "Fri", "Sat", "Sun"], 21 | ["Week 1", "26", "27", "28", "29", "30", "1", "2"], 22 | ["Week 2", "3", "4", "5", "6", "7", "8", "9"], 23 | ["Week 3", "10", "11", "12", "13", "14", "15", "16"], 24 | ["Week 4", "17", "18", "19", "20", "21", "22", "23"], 25 | ["Week 5", "24", "25", "26", "27", "28", "29", "30"], 26 | ["Week 6", "31", "", "", "", "", "", ""] 27 | ] 28 | 29 | var rowCount: Int { 30 | return cellText.count 31 | } 32 | 33 | func colCount(forRow row: Int) -> Int { 34 | cellText[row].count 35 | } 36 | 37 | func backgroundColor() -> UIColor { 38 | return UIColor(hex: "#E26D56ff")! 39 | } 40 | 41 | func interItemSpacing() -> CGFloat { 42 | return 0 43 | } 44 | 45 | func sectionSpacing() -> CGFloat { 46 | return 0 47 | } 48 | 49 | func getCellSize(indexPath: IndexPath) -> CGSize { 50 | if indexPath.section == 0 { 51 | return CGSize(width: 375, height: 60) 52 | } else if indexPath.item == 0 { 53 | return CGSize(width: 80, height: 34.3) 54 | } else { 55 | return CGSize(width: 70, height: 34.3) 56 | } 57 | } 58 | 59 | func setCellStyle(collectionView: UICollectionView, indexPath: IndexPath, cell: UICollectionViewCell) { 60 | guard let cell = cell as? LabelCell else { 61 | return 62 | } 63 | if indexPath.section == 0 { 64 | cell.backgroundColor = UIColor(hex: "#555c64ff") 65 | cell.label.font = UIFont.boldSystemFont(ofSize: 20.0) 66 | } else if indexPath.item == 0 || indexPath.section == 1 { 67 | cell.backgroundColor = UIColor(hex: "#EB7059ff") 68 | cell.label.font = UIFont.boldSystemFont(ofSize: 12.0) 69 | } else { 70 | cell.backgroundColor = UIColor(hex: "#fa775eff") 71 | cell.label.font = UIFont.systemFont(ofSize: 12.0) 72 | } 73 | cell.label.textColor = .white 74 | cell.label.text = cellText[indexPath.section][indexPath.item] 75 | cell.label.alpha = (indexPath.section == 2 && indexPath.item < 5 && indexPath.item > 0) ? 0.7 : 1 76 | cell.label.frame = cell.bounds 77 | } 78 | } 79 | -------------------------------------------------------------------------------- /example/StickyLayoutExamples/ViewModels/MobileExpenseViewModel.swift: -------------------------------------------------------------------------------- 1 | // 2 | // MobileExpenseViewModel.swift 3 | // StickyLayoutExamples 4 | // 5 | // Created by Jeffrey Zhang on 2020-05-07. 6 | // Copyright © 2020 Jeffrey Zhang. All rights reserved. 7 | // 8 | 9 | import Foundation 10 | import StickyLayout 11 | 12 | public class MobileExpenseViewModel: StickyCollectionViewModel { 13 | var stickyConfig = StickyLayoutConfig(stickyRowsFromTop: 1, 14 | stickyRowsFromBottom: 2, 15 | stickyColsFromLeft: 1, 16 | stickyColsFromRight: 0) 17 | 18 | private let messagesCosts = [20, 47, 30, 23, 34, 13, 15, 42, 53, 12, 43, 12, 34, 45, 65] 19 | private let minutesCosts = [5, 41, 40, 22, 74, 43, 15, 122, 23, 14, 0, 2, 0, 93, 11] 20 | private let dataCosts = [4, 0, 340, 23, 31, 13, 25, 32, 6, 33, 90, 22, 8, 0, 10] 21 | private let longDistanceCosts = [14, 24, 43, 2, 21, 23, 54, 43, 54, 2, 0, 0, 4, 5, 0] 22 | 23 | private var costLists: [[Int]] { 24 | return [messagesCosts, minutesCosts, dataCosts, longDistanceCosts] 25 | } 26 | 27 | private var messagesTotalCost: Int { 28 | return messagesCosts.reduce(0, +) 29 | } 30 | 31 | private var minutesTotalCost: Int { 32 | return minutesCosts.reduce(0, +) 33 | } 34 | 35 | private var dataTotalCost: Int { 36 | return dataCosts.reduce(0, +) 37 | } 38 | 39 | private var longDistanceTotalCost: Int { 40 | return longDistanceCosts.reduce(0, +) 41 | } 42 | 43 | private var totalExpense: Int { 44 | return messagesTotalCost + minutesTotalCost + dataTotalCost + longDistanceTotalCost 45 | } 46 | 47 | private let names = ["Charley", "Dan", "Jacob", "Olivia", "David", "Heather", "Beth", "John", 48 | "Jazz", "Simon", "Don", "Ronald", "Jay", "Carl", "Luke"] 49 | 50 | private var cellText: [[String]] = [] 51 | 52 | init() { 53 | var cellText = [["Names", "Messages", "Minutes", "Data", "Long Distance"]] 54 | for index in 0.. Int { 83 | cellText[row].count 84 | } 85 | 86 | func backgroundColor() -> UIColor { 87 | return UIColor(hex: "#EAEAEAff")! 88 | } 89 | 90 | func interItemSpacing() -> CGFloat { 91 | return 0 92 | } 93 | 94 | func sectionSpacing() -> CGFloat { 95 | return 0 96 | } 97 | 98 | func getCellSize(indexPath: IndexPath) -> CGSize { 99 | if (rowCount - indexPath.section <= 2) && (indexPath.item == colCount(forRow: indexPath.section) - 1) { 100 | return CGSize(width: 140, height: 50) 101 | } else if rowCount - indexPath.section <= 2 { 102 | return CGSize(width: 100, height: 50) 103 | } else if indexPath.item == colCount(forRow: indexPath.section) - 1 { 104 | return CGSize(width: 140, height: 50) 105 | } 106 | return CGSize(width: 100, height: 50) 107 | } 108 | 109 | func setCellStyle(collectionView: UICollectionView, indexPath: IndexPath, cell: UICollectionViewCell) { 110 | guard let cell = cell as? LabelCell else { 111 | return 112 | } 113 | 114 | cell.label.textColor = .black 115 | if indexPath.section == 0 { 116 | cell.backgroundColor = UIColor(hex: "#F4F4F4ff") 117 | cell.label.textColor = UIColor(hex: "#7c9dfcff") 118 | } else if rowCount - indexPath.section <= 2 { 119 | cell.backgroundColor = UIColor(hex: "#E5E5E5ff") 120 | } else if indexPath.section % 2 == 0 { 121 | cell.backgroundColor = .white 122 | } else if indexPath.section % 2 == 1 { 123 | cell.backgroundColor = UIColor(hex: "#eff0f2ff") 124 | } 125 | cell.label.text = cellText[indexPath.section][indexPath.item] 126 | cell.label.alpha = (indexPath.section == 0 || indexPath.item == 0 || rowCount - indexPath.section <= 2) ? 1 : 0.5 127 | cell.label.font = (indexPath.section == 0 || indexPath.item == 0) ? UIFont.boldSystemFont(ofSize: 12) : UIFont.systemFont(ofSize: 12) 128 | cell.label.frame = cell.bounds 129 | } 130 | } 131 | -------------------------------------------------------------------------------- /example/StickyLayoutExamples/ViewModels/StickyCollectionViewModel.swift: -------------------------------------------------------------------------------- 1 | // 2 | // StickyCollectionViewModel.swift 3 | // StickyLayout 4 | // 5 | // Created by Jeffrey Zhang on 2020-05-05. 6 | // Copyright © 2020 Jeffrey Zhang. All rights reserved. 7 | // 8 | 9 | import Foundation 10 | import StickyLayout 11 | 12 | protocol StickyCollectionViewModel { 13 | //Sticky Configuration 14 | var stickyConfig: StickyLayoutConfig { get } 15 | 16 | // Dimensions 17 | var rowCount: Int { get } 18 | func colCount(forRow row: Int) -> Int 19 | 20 | // Style 21 | func backgroundColor() -> UIColor 22 | 23 | // Spacing 24 | func interItemSpacing() -> CGFloat 25 | func sectionSpacing() -> CGFloat 26 | 27 | // Sizing 28 | func getCellSize(indexPath: IndexPath) -> CGSize 29 | 30 | // Cell Style 31 | func setCellStyle(collectionView: UICollectionView, indexPath: IndexPath, cell: UICollectionViewCell) 32 | } 33 | -------------------------------------------------------------------------------- /example/StickyLayoutExamples/ViewModels/SwimLeaderboardViewModel.swift: -------------------------------------------------------------------------------- 1 | // 2 | // SwimLeaderboardViewModel.swift 3 | // StickyLayoutExamples 4 | // 5 | // Created by Jeffrey Zhang on 2020-05-08. 6 | // Copyright © 2020 Jeffrey Zhang. All rights reserved. 7 | // 8 | 9 | import Foundation 10 | import StickyLayout 11 | 12 | public class SwimLeaderboardViewModel: StickyCollectionViewModel { 13 | var stickyConfig = StickyLayoutConfig(stickyRowsFromTop: 1, 14 | stickyRowsFromBottom: 0, 15 | stickyColsFromLeft: 1, 16 | stickyColsFromRight: 1) 17 | 18 | private let splitIntervals = [[55, 63, 44, 60, 50], 19 | [55, 63, 44, 60, 50], 20 | [65, 53, 65, 66, 57], 21 | [68, 63, 80, 67, 60], 22 | [59, 63, 90, 60, 55], 23 | [60, 69, 63, 70, 62], 24 | [62, 53, 54, 51, 63], 25 | [67, 55, 64, 59, 55]] 26 | 27 | private let swimmers = ["Phelps", "Lochte", "Henry", "John", "Larry"] 28 | 29 | private var cellText: [[String]] = [] 30 | 31 | init() { 32 | var cellText = [["Swimmers", "Lap 1", "Lap 2", "Lap 3", "Lap 4", "Lap 5", "Lap 6", "Lap 7", "Lap 8", "Total"]] 33 | for index in 0.. Int { 52 | return cellText[row].count 53 | } 54 | 55 | func backgroundColor() -> UIColor { 56 | return UIColor(hex: "#C3F2FDff")! 57 | } 58 | 59 | func interItemSpacing() -> CGFloat { 60 | return 0 61 | } 62 | 63 | func sectionSpacing() -> CGFloat { 64 | return 0 65 | } 66 | 67 | func getCellSize(indexPath: IndexPath) -> CGSize { 68 | return CGSize(width: 80, height: 50) 69 | } 70 | 71 | func setCellStyle(collectionView: UICollectionView, indexPath: IndexPath, cell: UICollectionViewCell) { 72 | guard let cell = cell as? LabelCell else { 73 | return 74 | } 75 | let isFirstRow = indexPath.section == 0 76 | let isLastCol = indexPath.item == colCount(forRow: indexPath.section) - 1 77 | let isFirstCol = indexPath.item == 0 78 | 79 | cell.label.frame = cell.bounds 80 | cell.label.text = cellText[indexPath.section][indexPath.item] 81 | if isFirstRow { 82 | cell.backgroundColor = UIColor(hex: "#8EE5F9ff") 83 | } else if isLastCol || isFirstCol { 84 | cell.backgroundColor = UIColor(hex: "#61D0EAff") 85 | } else { 86 | cell.backgroundColor = UIColor(hex: "#5BC6DFff") 87 | } 88 | cell.label.textColor = .white 89 | cell.label.alpha = (isFirstRow || isFirstCol || isLastCol) ? 1 : 0.7 90 | cell.label.font = (isFirstRow || isFirstCol || isLastCol) ? UIFont.boldSystemFont(ofSize: 12) : UIFont.systemFont(ofSize: 12) 91 | } 92 | 93 | private func formatInterval(interval: Int) -> String { 94 | let formatter = DateComponentsFormatter() 95 | formatter.allowedUnits = [.hour, .minute, .second] 96 | formatter.unitsStyle = .positional 97 | let formattedString = formatter.string(from: TimeInterval(interval))! 98 | return formattedString 99 | } 100 | } 101 | -------------------------------------------------------------------------------- /reports/cobertura.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | /Users/jeffreyzhang/git/StickyLayout 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | 139 | 140 | 141 | 142 | 143 | 144 | 145 | 146 | 147 | 148 | 149 | 150 | 151 | 152 | 153 | 154 | 155 | 156 | 157 | 158 | 159 | 160 | 161 | 162 | 163 | 164 | 165 | 166 | 167 | 168 | 169 | 170 | 171 | 172 | 173 | 174 | 175 | 176 | 177 | 178 | 179 | 180 | 181 | 182 | 183 | 184 | 185 | 186 | 187 | 188 | 189 | 190 | 191 | 192 | 193 | 194 | 195 | 196 | 197 | 198 | 199 | 200 | 201 | 202 | 203 | 204 | 205 | 206 | 207 | 208 | 209 | 210 | 211 | 212 | 213 | 214 | 215 | 216 | 217 | 218 | 219 | 220 | 221 | 222 | 223 | 224 | 225 | 226 | 227 | 228 | 229 | 230 | 231 | 232 | 233 | 234 | 235 | 236 | 237 | 238 | 239 | 240 | 241 | 242 | 243 | 244 | 245 | 246 | 247 | 248 | 249 | 250 | 251 | 252 | 253 | 254 | 255 | 256 | 257 | --------------------------------------------------------------------------------