├── .gitignore ├── .swift-version ├── .swiftlint.yml ├── .travis.yml ├── DEMO ├── .swiftlint.yml ├── KRPullLoaderDemo.xcodeproj │ ├── project.pbxproj │ └── project.xcworkspace │ │ ├── contents.xcworkspacedata │ │ └── xcshareddata │ │ └── IDEWorkspaceChecks.plist ├── KRPullLoaderDemo.xcworkspace │ ├── contents.xcworkspacedata │ └── xcshareddata │ │ └── IDEWorkspaceChecks.plist ├── KRPullLoaderDemo │ ├── AppDelegate.swift │ ├── Base.lproj │ │ └── Main.storyboard │ ├── CollectionViewSampleVC.swift │ ├── HorizontalCollectionViewSampleVC.swift │ ├── HorizontalPullLoadView.swift │ ├── Info.plist │ ├── LaunchScreen.storyboard │ ├── TableViewSampleVC.swift │ └── UIColorExtension.swift └── Podfile ├── KRPullLoader.podspec ├── KRPullLoader.xcodeproj ├── project.pbxproj ├── project.xcworkspace │ ├── contents.xcworkspacedata │ └── xcshareddata │ │ └── IDEWorkspaceChecks.plist └── xcshareddata │ └── xcschemes │ └── KRPullLoader.xcscheme ├── KRPullLoader ├── Classes │ ├── KRPullLoadView.swift │ ├── KRPullLoader.swift │ ├── NSLayoutConstraintExtensions.swift │ └── UIScrollViewExtensions.swift ├── Info.plist └── KRPullLoader.h ├── KRPullLoaderTests ├── Info.plist └── KRPullLoaderTests.swift ├── LICENSE ├── README.md └── README_Ja.md /.gitignore: -------------------------------------------------------------------------------- 1 | # OS X 2 | .DS_Store 3 | 4 | # Xcode 5 | build/ 6 | *.pbxuser 7 | !default.pbxuser 8 | *.mode1v3 9 | !default.mode1v3 10 | *.mode2v3 11 | !default.mode2v3 12 | *.perspectivev3 13 | !default.perspectivev3 14 | xcuserdata 15 | *.xccheckout 16 | profile 17 | *.moved-aside 18 | DerivedData 19 | *.hmap 20 | *.ipa 21 | 22 | # KRPullLoader 23 | Carthage 24 | Pods 25 | DEMO/Podfile.lock 26 | -------------------------------------------------------------------------------- /.swift-version: -------------------------------------------------------------------------------- 1 | 5.0.1 2 | -------------------------------------------------------------------------------- /.swiftlint.yml: -------------------------------------------------------------------------------- 1 | disabled_rules: 2 | - line_length 3 | - file_length 4 | included: 5 | - KRPullLoader 6 | - KRPullLoaderTests 7 | excluded: 8 | - Pods 9 | type_body_length: 10 | - 400 # warning 11 | - 500 # error 12 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: objective-c 2 | osx_image: xcode10.2 3 | xcode_sdk: iphonesimulator12.2 4 | install: 5 | - gem install xcpretty 6 | script: 7 | - set -o pipefail 8 | - travis_retry xcodebuild -project KRPullLoader.xcodeproj -scheme KRPullLoader -destination "platform=iOS Simulator,name=iPhone Xs" build-for-testing test | xcpretty 9 | notifications: 10 | email: false 11 | -------------------------------------------------------------------------------- /DEMO/.swiftlint.yml: -------------------------------------------------------------------------------- 1 | disabled_rules: 2 | - line_length 3 | - file_length 4 | included: 5 | - KRPullLoaderDemo 6 | type_body_length: 7 | - 400 # warning 8 | - 500 # error 9 | -------------------------------------------------------------------------------- /DEMO/KRPullLoaderDemo.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 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439 | defaultConfigurationIsVisible = 0; 440 | defaultConfigurationName = Release; 441 | }; 442 | /* End XCConfigurationList section */ 443 | }; 444 | rootObject = 6B0587F41EE0FA38004763D4 /* Project object */; 445 | } 446 | -------------------------------------------------------------------------------- /DEMO/KRPullLoaderDemo.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /DEMO/KRPullLoaderDemo.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | IDEDidComputeMac32BitWarning 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /DEMO/KRPullLoaderDemo.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 9 | 10 | 11 | -------------------------------------------------------------------------------- /DEMO/KRPullLoaderDemo.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | IDEDidComputeMac32BitWarning 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /DEMO/KRPullLoaderDemo/AppDelegate.swift: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.swift 3 | // KRPullLoaderDemo 4 | // 5 | // Created by Krimpedance on 2017/06/02. 6 | // Copyright © 2017年 Krimpedance. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | @UIApplicationMain 12 | class AppDelegate: UIResponder, UIApplicationDelegate { 13 | 14 | var window: UIWindow? 15 | 16 | func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool { 17 | // Override point for customization after application launch. 18 | return true 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /DEMO/KRPullLoaderDemo/Base.lproj/Main.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 | 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 | -------------------------------------------------------------------------------- /DEMO/KRPullLoaderDemo/CollectionViewSampleVC.swift: -------------------------------------------------------------------------------- 1 | // 2 | // CollectionViewSampleVC.swift 3 | // KRPullLoaderDemo 4 | // 5 | // Copyright © 2017年 Krimpedance. All rights reserved. 6 | // 7 | 8 | import UIKit 9 | import KRPullLoader 10 | 11 | class CollectionViewSampleVC: UIViewController { 12 | 13 | @IBOutlet weak var collectionView: UICollectionView! 14 | var index = 0 15 | 16 | override func viewDidLoad() { 17 | super.viewDidLoad() 18 | 19 | collectionView.dataSource = self 20 | let refreshView = KRPullLoadView() 21 | refreshView.delegate = self 22 | collectionView.addPullLoadableView(refreshView, type: .refresh) 23 | let loadMoreView = KRPullLoadView() 24 | loadMoreView.delegate = self 25 | collectionView.addPullLoadableView(loadMoreView, type: .loadMore) 26 | } 27 | } 28 | 29 | // MARK: - UICollectionView data source ------------------- 30 | 31 | extension CollectionViewSampleVC: UICollectionViewDataSource { 32 | func numberOfSections(in collectionView: UICollectionView) -> Int { 33 | return 1 34 | } 35 | 36 | func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { 37 | self.index += 1 38 | return 10 * index 39 | } 40 | 41 | func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { 42 | let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) 43 | cell.backgroundColor = .getColor(with: indexPath.row) 44 | return cell 45 | } 46 | } 47 | 48 | // MARK: - KRPullLoadView delegate ------------------- 49 | 50 | extension CollectionViewSampleVC: KRPullLoadViewDelegate { 51 | func pullLoadView(_ pullLoadView: KRPullLoadView, didChangeState state: KRPullLoaderState, viewType type: KRPullLoaderType) { 52 | if type == .loadMore { 53 | switch state { 54 | case let .loading(completionHandler): 55 | DispatchQueue.main.asyncAfter(deadline: DispatchTime.now()+1) { 56 | completionHandler() 57 | self.collectionView.reloadData() 58 | } 59 | default: break 60 | } 61 | return 62 | } 63 | 64 | switch state { 65 | case .none: 66 | pullLoadView.messageLabel.text = "" 67 | 68 | case let .pulling(offset, threshould): 69 | if offset.y > threshould { 70 | pullLoadView.messageLabel.text = "Pull more. offset: \(Int(offset.y)), threshould: \(Int(threshould)))" 71 | } else { 72 | pullLoadView.messageLabel.text = "Release to refresh. offset: \(Int(offset.y)), threshould: \(Int(threshould)))" 73 | } 74 | 75 | case let .loading(completionHandler): 76 | pullLoadView.messageLabel.text = "Updating..." 77 | DispatchQueue.main.asyncAfter(deadline: DispatchTime.now()+1) { 78 | completionHandler() 79 | self.collectionView.reloadData() 80 | } 81 | } 82 | } 83 | } 84 | -------------------------------------------------------------------------------- /DEMO/KRPullLoaderDemo/HorizontalCollectionViewSampleVC.swift: -------------------------------------------------------------------------------- 1 | // 2 | // HorizontalHorizontalCollectionViewSampleVC.swift 3 | // KRPullLoaderDemo 4 | // 5 | // Copyright © 2017年 Krimpedance. All rights reserved. 6 | // 7 | 8 | import UIKit 9 | 10 | import UIKit 11 | import KRPullLoader 12 | 13 | class HorizontalCollectionViewSampleVC: UIViewController { 14 | 15 | @IBOutlet weak var collectionView: UICollectionView! 16 | var index = 0 17 | 18 | override func viewDidLoad() { 19 | super.viewDidLoad() 20 | 21 | collectionView.dataSource = self 22 | collectionView.addPullLoadableView(HorizontalPullLoadView(), type: .refresh) 23 | collectionView.addPullLoadableView(HorizontalPullLoadView(), type: .loadMore) 24 | 25 | collectionView.contentInset.left = 50 26 | collectionView.contentInset.right = 50 27 | } 28 | } 29 | 30 | // MARK: - UICollectionView data source ------------------- 31 | 32 | extension HorizontalCollectionViewSampleVC: UICollectionViewDataSource { 33 | func numberOfSections(in collectionView: UICollectionView) -> Int { 34 | return 1 35 | } 36 | 37 | func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int { 38 | index += 1 39 | return 10 * index 40 | } 41 | 42 | func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { 43 | let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) 44 | cell.backgroundColor = .getColor(with: indexPath.row) 45 | return cell 46 | } 47 | } 48 | -------------------------------------------------------------------------------- /DEMO/KRPullLoaderDemo/HorizontalPullLoadView.swift: -------------------------------------------------------------------------------- 1 | // 2 | // HorizontalPullLoadView.swift 3 | // KRPullLoaderDemo 4 | // 5 | // Copyright © 2017年 Krimpedance. All rights reserved. 6 | // 7 | 8 | import UIKit 9 | import KRPullLoader 10 | 11 | class HorizontalPullLoadView: UIView { 12 | 13 | public let activityIndicator = UIActivityIndicatorView() 14 | 15 | var shouldSetConstraints = true 16 | 17 | open override func layoutSubviews() { 18 | super.layoutSubviews() 19 | if shouldSetConstraints { setUp() } 20 | shouldSetConstraints = false 21 | } 22 | } 23 | 24 | // MARK: - Actions ------------------- 25 | 26 | extension HorizontalPullLoadView { 27 | func setUp() { 28 | backgroundColor = .clear 29 | 30 | activityIndicator.style = .gray 31 | activityIndicator.hidesWhenStopped = false 32 | activityIndicator.translatesAutoresizingMaskIntoConstraints = false 33 | addSubview(activityIndicator) 34 | 35 | addConstraints([ 36 | NSLayoutConstraint(item: activityIndicator, attribute: .left, relatedBy: .equal, toItem: self, attribute: .left, multiplier: 1.0, constant: 15.0), 37 | NSLayoutConstraint(item: activityIndicator, attribute: .centerY, relatedBy: .equal, toItem: self, attribute: .centerY, multiplier: 1.0, constant: 0.0) 38 | ]) 39 | 40 | addConstraint( 41 | NSLayoutConstraint(item: self, attribute: .width, relatedBy: .equal, toItem: nil, attribute: .width, multiplier: 1.0, constant: 50) 42 | ) 43 | } 44 | } 45 | 46 | // MARK: - KRPullLoadable actions ------------------- 47 | 48 | extension HorizontalPullLoadView: KRPullLoadable { 49 | func didChangeState(_ state: KRPullLoaderState, viewType type: KRPullLoaderType) { 50 | switch state { 51 | case .none: 52 | activityIndicator.stopAnimating() 53 | 54 | case .pulling: 55 | break 56 | 57 | case let .loading(completionHandler): 58 | activityIndicator.startAnimating() 59 | DispatchQueue.main.asyncAfter(deadline: DispatchTime.now()+1) { 60 | completionHandler() 61 | if let collectionView = self.superview?.superview as? UICollectionView { 62 | collectionView.reloadData() 63 | } 64 | } 65 | } 66 | } 67 | } 68 | -------------------------------------------------------------------------------- /DEMO/KRPullLoaderDemo/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | APPL 17 | CFBundleShortVersionString 18 | 1.3.0 19 | CFBundleVersion 20 | $(CURRENT_PROJECT_VERSION) 21 | LSRequiresIPhoneOS 22 | 23 | UILaunchStoryboardName 24 | LaunchScreen 25 | UIMainStoryboardFile 26 | Main 27 | UIRequiredDeviceCapabilities 28 | 29 | armv7 30 | 31 | UISupportedInterfaceOrientations 32 | 33 | UIInterfaceOrientationPortrait 34 | UIInterfaceOrientationLandscapeLeft 35 | UIInterfaceOrientationLandscapeRight 36 | 37 | 38 | 39 | -------------------------------------------------------------------------------- /DEMO/KRPullLoaderDemo/LaunchScreen.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 26 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | -------------------------------------------------------------------------------- /DEMO/KRPullLoaderDemo/TableViewSampleVC.swift: -------------------------------------------------------------------------------- 1 | // 2 | // TableViewSampleVC.swift 3 | // KRPullLoaderDemo 4 | // 5 | // Copyright © 2017年 Krimpedance. All rights reserved. 6 | // 7 | 8 | import UIKit 9 | import KRPullLoader 10 | 11 | class TableViewSampleVC: UIViewController { 12 | 13 | @IBOutlet weak var tableView: UITableView! 14 | var index = 1 15 | 16 | override func viewDidLoad() { 17 | super.viewDidLoad() 18 | 19 | tableView.dataSource = self 20 | 21 | let refreshView = KRPullLoadView() 22 | refreshView.delegate = self 23 | tableView.addPullLoadableView(refreshView, type: .refresh) 24 | let loadMoreView = KRPullLoadView() 25 | loadMoreView.delegate = self 26 | tableView.addPullLoadableView(loadMoreView, type: .loadMore) 27 | 28 | tableView.contentInset.top = 50 29 | tableView.contentInset.bottom = 50 30 | } 31 | } 32 | 33 | // MARK: - UITableView data source ------------------- 34 | 35 | extension TableViewSampleVC: UITableViewDataSource { 36 | func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { 37 | return 10 * index 38 | } 39 | 40 | func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { 41 | let cell = tableView.dequeueReusableCell(withIdentifier: "cell")! 42 | cell.backgroundColor = .getColor(with: indexPath.row) 43 | return cell 44 | } 45 | } 46 | 47 | // MARK: - KRPullLoadView delegate ------------------- 48 | 49 | extension TableViewSampleVC: KRPullLoadViewDelegate { 50 | func pullLoadView(_ pullLoadView: KRPullLoadView, didChangeState state: KRPullLoaderState, viewType type: KRPullLoaderType) { 51 | if type == .loadMore { 52 | switch state { 53 | case let .loading(completionHandler): 54 | DispatchQueue.main.asyncAfter(deadline: DispatchTime.now()+1) { 55 | completionHandler() 56 | self.index += 1 57 | self.tableView.reloadData() 58 | } 59 | default: break 60 | } 61 | return 62 | } 63 | 64 | switch state { 65 | case .none: 66 | pullLoadView.messageLabel.text = "" 67 | 68 | case let .pulling(offset, threshould): 69 | if offset.y > threshould { 70 | pullLoadView.messageLabel.text = "Pull more. offset: \(Int(offset.y)), threshould: \(Int(threshould)))" 71 | } else { 72 | pullLoadView.messageLabel.text = "Release to refresh. offset: \(Int(offset.y)), threshould: \(Int(threshould)))" 73 | } 74 | 75 | case let .loading(completionHandler): 76 | pullLoadView.messageLabel.text = "Updating..." 77 | DispatchQueue.main.asyncAfter(deadline: DispatchTime.now()+1) { 78 | completionHandler() 79 | self.index += 1 80 | self.tableView.reloadData() 81 | } 82 | } 83 | } 84 | } 85 | -------------------------------------------------------------------------------- /DEMO/KRPullLoaderDemo/UIColorExtension.swift: -------------------------------------------------------------------------------- 1 | // 2 | // UIColorExtension.swift 3 | // KRPullLoaderDemo 4 | // 5 | // Copyright © 2017年 Krimpedance. All rights reserved. 6 | // 7 | 8 | import UIKit 9 | 10 | extension UIColor { 11 | class func getColor(with row: Int) -> UIColor { 12 | return [.red, .blue, .green, .orange, .yellow][(row / 10) % 5] 13 | } 14 | } 15 | -------------------------------------------------------------------------------- /DEMO/Podfile: -------------------------------------------------------------------------------- 1 | platform :ios, '12.0' 2 | 3 | target 'KRPullLoaderDemo' do 4 | use_frameworks! 5 | 6 | pod 'KRPullLoader', path: '../KRPullLoader.podspec' 7 | end 8 | -------------------------------------------------------------------------------- /KRPullLoader.podspec: -------------------------------------------------------------------------------- 1 | Pod::Spec.new do |s| 2 | s.name = "KRPullLoader" 3 | s.version = "1.3.0" 4 | s.summary = "A 'pull to load' control for UIScrollView(, UITableView, UICollectionView, ...)." 5 | s.description = "KRPullLoader is a 'pull to load' control for UIScrollView(, UITableView, UICollectionView, ...) on iOS." 6 | s.homepage = "https://github.com/krimpedance/KRPullLoader" 7 | s.license = { :type => "MIT", :file => "LICENSE" } 8 | 9 | s.author = { "krimpedance" => "info@krimpedance.com" } 10 | s.requires_arc = true 11 | s.platform = :ios, '8.0' 12 | s.ios.deployment_target = '8.0' 13 | 14 | s.source = { :git => "https://github.com/krimpedance/KRPullLoader.git", :tag => s.version.to_s } 15 | s.source_files = "KRPullLoader/**/*.swift" 16 | end 17 | -------------------------------------------------------------------------------- /KRPullLoader.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 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505 | defaultConfigurationIsVisible = 0; 506 | defaultConfigurationName = Release; 507 | }; 508 | 6BD997191EE0F99100C7C273 /* Build configuration list for PBXNativeTarget "KRPullLoaderTests" */ = { 509 | isa = XCConfigurationList; 510 | buildConfigurations = ( 511 | 6BD9971A1EE0F99100C7C273 /* Debug */, 512 | 6BD9971B1EE0F99100C7C273 /* Release */, 513 | ); 514 | defaultConfigurationIsVisible = 0; 515 | defaultConfigurationName = Release; 516 | }; 517 | /* End XCConfigurationList section */ 518 | }; 519 | rootObject = 6BD996F91EE0F99000C7C273 /* Project object */; 520 | } 521 | -------------------------------------------------------------------------------- /KRPullLoader.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /KRPullLoader.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | IDEDidComputeMac32BitWarning 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /KRPullLoader.xcodeproj/xcshareddata/xcschemes/KRPullLoader.xcscheme: -------------------------------------------------------------------------------- 1 | 2 | 5 | 8 | 9 | 15 | 21 | 22 | 23 | 24 | 25 | 30 | 31 | 33 | 39 | 40 | 41 | 42 | 43 | 49 | 50 | 51 | 52 | 53 | 54 | 64 | 65 | 71 | 72 | 73 | 74 | 75 | 76 | 82 | 83 | 89 | 90 | 91 | 92 | 94 | 95 | 98 | 99 | 100 | -------------------------------------------------------------------------------- /KRPullLoader/Classes/KRPullLoadView.swift: -------------------------------------------------------------------------------- 1 | // 2 | // KRPullLoadView.swift 3 | // KRPullLoader 4 | // 5 | // Copyright © 2017 Krimpedance. All rights reserved. 6 | // 7 | 8 | import UIKit 9 | 10 | /// Delegate for KRPullLoadView. 11 | public protocol KRPullLoadViewDelegate: class { 12 | /// Handler when KRPullLoaderState value changed. 13 | /// 14 | /// - Parameters: 15 | /// - pullLoadView: KRPullLoadView. 16 | /// - state: New state. 17 | /// - type: KRPullLoaderType. 18 | func pullLoadView(_ pullLoadView: KRPullLoadView, didChangeState state: KRPullLoaderState, viewType type: KRPullLoaderType) 19 | } 20 | 21 | /// Simple view which inherited KRPullLoadable protocol. 22 | /// This has only activity indicator and message label. 23 | open class KRPullLoadView: UIView, KRPullLoadable { 24 | 25 | private lazy var oneTimeSetUp: Void = { self.setUp() }() 26 | 27 | public let activityIndicator = UIActivityIndicatorView() 28 | public let messageLabel = UILabel() 29 | 30 | open weak var delegate: KRPullLoadViewDelegate? 31 | 32 | open override func layoutSubviews() { 33 | super.layoutSubviews() 34 | _ = oneTimeSetUp 35 | } 36 | 37 | // Set up ------------ 38 | 39 | open func setUp() { 40 | backgroundColor = .clear 41 | 42 | activityIndicator.style = .gray 43 | activityIndicator.hidesWhenStopped = false 44 | activityIndicator.translatesAutoresizingMaskIntoConstraints = false 45 | addSubview(activityIndicator) 46 | 47 | messageLabel.font = .systemFont(ofSize: 10) 48 | messageLabel.textAlignment = .center 49 | messageLabel.textColor = .gray 50 | messageLabel.translatesAutoresizingMaskIntoConstraints = false 51 | addSubview(messageLabel) 52 | 53 | addConstraints([ 54 | NSLayoutConstraint(item: activityIndicator, attribute: .top, toItem: self, constant: 15.0), 55 | NSLayoutConstraint(item: activityIndicator, attribute: .centerX, toItem: self), 56 | NSLayoutConstraint(item: messageLabel, attribute: .top, toItem: self, constant: 40.0), 57 | NSLayoutConstraint(item: messageLabel, attribute: .centerX, toItem: self), 58 | NSLayoutConstraint(item: messageLabel, attribute: .bottom, toItem: self, constant: -15.0) 59 | ]) 60 | 61 | messageLabel.addConstraint( 62 | NSLayoutConstraint(item: messageLabel, attribute: .width, relatedBy: .lessThanOrEqual, constant: 300) 63 | ) 64 | } 65 | 66 | // KRPullLoadable ------------ 67 | 68 | open func didChangeState(_ state: KRPullLoaderState, viewType type: KRPullLoaderType) { 69 | switch state { 70 | case .none: 71 | activityIndicator.stopAnimating() 72 | 73 | case .pulling: 74 | break 75 | 76 | case .loading: 77 | activityIndicator.startAnimating() 78 | } 79 | delegate?.pullLoadView(self, didChangeState: state, viewType: type) 80 | } 81 | } 82 | -------------------------------------------------------------------------------- /KRPullLoader/Classes/KRPullLoader.swift: -------------------------------------------------------------------------------- 1 | // 2 | // KRPullLoader.swift 3 | // KRPullLoader 4 | // 5 | // Copyright © 2017 Krimpedance. All rights reserved. 6 | // 7 | 8 | import UIKit 9 | 10 | /// Type of KRPullLoader's position. 11 | /// 12 | /// - refresh: At the head of UIScrollView's scroll direction 13 | /// - loadMore: At the tail of UIScrollView's scroll direction 14 | public enum KRPullLoaderType { 15 | case refresh, loadMore 16 | } 17 | 18 | /// State of KRPullLoader 19 | /// 20 | /// - none: hides the view. 21 | /// - pulling: pulling. `offset` is pull offset (always <= 0). 22 | /// - loading: Shows the view. You should call `completionHandler` when some actions have been completed. 23 | public enum KRPullLoaderState: Equatable { 24 | case none 25 | case pulling(offset: CGPoint, threshold: CGFloat) 26 | case loading(completionHandler: ()->Void) 27 | 28 | public static func == (lhs: KRPullLoaderState, rhs: KRPullLoaderState) -> Bool { 29 | switch (lhs, rhs) { 30 | case (.none, .none), (.loading, .loading): return true 31 | case let (.pulling(lOffset, lThreshold), .pulling(rOffset, rThreshold)): 32 | return lOffset == rOffset && lThreshold == rThreshold 33 | default: return false 34 | } 35 | } 36 | } 37 | 38 | /// KRPullLoadable is a protocol for views added to UIScrollView. 39 | public protocol KRPullLoadable: UIView { 40 | /// Handler when KRPullLoaderState value changed. 41 | /// 42 | /// - Parameters: 43 | /// - state: New state. 44 | /// - type: KRPullLoaderType. 45 | func didChangeState(_ state: KRPullLoaderState, viewType type: KRPullLoaderType) 46 | } 47 | 48 | class KRPullLoader: UIView { 49 | 50 | private lazy var setUpLayoutConstraints: Void = { self.adjustLayoutConstraints() }() 51 | 52 | private var observations = [NSKeyValueObservation]() 53 | private var defaultInset = UIEdgeInsets() 54 | private var scrollDirectionPositionConstraint: NSLayoutConstraint? 55 | 56 | let loadView: KRPullLoadable 57 | let type: KRPullLoaderType 58 | 59 | var scrollView: UIScrollView? { return superview as? UIScrollView } 60 | 61 | var scrollDirection: UICollectionView.ScrollDirection { 62 | return ((superview as? UICollectionView)?.collectionViewLayout as? UICollectionViewFlowLayout)?.scrollDirection ?? .vertical 63 | } 64 | 65 | var state = KRPullLoaderState.none { 66 | didSet { 67 | loadView.didChangeState(state, viewType: type) 68 | } 69 | } 70 | 71 | init(loadView: KRPullLoadable, type: KRPullLoaderType) { 72 | self.loadView = loadView 73 | self.type = type 74 | super.init(frame: loadView.bounds) 75 | addSubview(loadView) 76 | } 77 | 78 | required init?(coder aDecoder: NSCoder) { fatalError() } 79 | 80 | override func layoutSubviews() { 81 | super.layoutSubviews() 82 | _ = setUpLayoutConstraints 83 | } 84 | 85 | override func willMove(toSuperview newSuperview: UIView?) { 86 | super.willMove(toSuperview: newSuperview) 87 | if newSuperview == nil { observations = [] } 88 | } 89 | } 90 | 91 | // MARK: - Private actions ------------ 92 | 93 | private extension KRPullLoader { 94 | func addObservers() { 95 | guard let scrollView = self.scrollView else { return } 96 | 97 | let contentOffsetObservation = scrollView.observe(\.contentOffset) { [weak self] _, _ in 98 | guard let wSelf = self else { return } 99 | if case .loading = wSelf.state { return } 100 | if wSelf.isHidden { return } 101 | wSelf.updateState() 102 | } 103 | 104 | let contentSizeObservation = scrollView.observe(\.contentSize) { [weak self] _, _ in 105 | guard let wSelf = self else { return } 106 | if case .loading = wSelf.state { return } 107 | wSelf.checkScrollViewContentSize() 108 | } 109 | 110 | observations = [contentOffsetObservation, contentSizeObservation] 111 | } 112 | 113 | func updateState() { 114 | guard let scrollView = scrollView else { return } 115 | 116 | let offset = (type == .refresh) ? scrollView.distanceOffset : scrollView.distanceEndOffset 117 | let offsetValue = (scrollDirection == .vertical) ? offset.y : offset.x 118 | let threshold = (scrollDirection == .vertical) ? bounds.height : bounds.width 119 | 120 | if scrollView.isDecelerating && offsetValue < -threshold { 121 | state = .loading { [weak self] in self?.endLoading() } 122 | startLoading() 123 | } else if offsetValue < 0 { 124 | state = .pulling(offset: offset, threshold: -(threshold + 12)) 125 | } else if state != .none { 126 | state = .none 127 | } 128 | } 129 | } 130 | 131 | // MARK: - Layouts ------------ 132 | 133 | private extension KRPullLoader { 134 | func checkScrollViewContentSize() { 135 | if type == .refresh { return } 136 | guard let scrollView = scrollView, let constraint = scrollDirectionPositionConstraint else { return } 137 | self.isHidden = scrollView.bounds.height > (scrollView.contentSize.height + scrollView.contentInset.top + scrollView.contentInset.bottom) 138 | constraint.constant = (scrollDirection == .vertical) ? 139 | scrollView.contentSize.height + scrollView.contentInset.bottom : 140 | scrollView.contentSize.width + scrollView.contentInset.right 141 | } 142 | 143 | func adjustLayoutConstraints() { 144 | clipsToBounds = true 145 | translatesAutoresizingMaskIntoConstraints = false 146 | loadView.translatesAutoresizingMaskIntoConstraints = false 147 | 148 | let attributes: [NSLayoutConstraint.Attribute] = [.top, .left, .right, .bottom] 149 | addConstraints(attributes.map { NSLayoutConstraint(item: loadView, attribute: $0, toItem: self) }) 150 | 151 | scrollDirection == .vertical ? adjustVerticalScrollLayoutConstraints() : adjustHorizontalScrollLayoutConstraints() 152 | 153 | checkScrollViewContentSize() 154 | } 155 | 156 | func adjustVerticalScrollLayoutConstraints() { 157 | guard let scrollView = scrollView else { return } 158 | 159 | switch type { 160 | case .refresh: 161 | scrollDirectionPositionConstraint = NSLayoutConstraint(item: self, attribute: .bottom, toItem: scrollView, attribute: .top, constant: -scrollView.contentInset.top) 162 | case .loadMore: 163 | let constant = scrollView.contentSize.height + scrollView.contentInset.bottom 164 | scrollDirectionPositionConstraint = NSLayoutConstraint(item: self, attribute: .top, toItem: scrollView, attribute: .top, constant: constant) 165 | } 166 | 167 | scrollView.addConstraints([ 168 | scrollDirectionPositionConstraint!, 169 | NSLayoutConstraint(item: self, attribute: .centerX, toItem: scrollView), 170 | NSLayoutConstraint(item: self, attribute: .width, toItem: scrollView) 171 | ]) 172 | } 173 | 174 | func adjustHorizontalScrollLayoutConstraints() { 175 | guard let scrollView = scrollView else { return } 176 | 177 | switch type { 178 | case .refresh: 179 | let constant = -scrollView.contentInset.left 180 | scrollDirectionPositionConstraint = NSLayoutConstraint(item: self, attribute: .right, toItem: scrollView, attribute: .left, constant: constant) 181 | case .loadMore: 182 | let constant = scrollView.contentSize.width + scrollView.contentInset.right 183 | scrollDirectionPositionConstraint = NSLayoutConstraint(item: self, attribute: .left, toItem: scrollView, attribute: .left, constant: constant) 184 | } 185 | 186 | scrollView.addConstraints([ 187 | scrollDirectionPositionConstraint!, 188 | NSLayoutConstraint(item: self, attribute: .centerY, toItem: scrollView), 189 | NSLayoutConstraint(item: self, attribute: .height, toItem: scrollView) 190 | ]) 191 | } 192 | } 193 | 194 | // MARK: - Loading actions ------------ 195 | 196 | private extension KRPullLoader { 197 | func endLoading() { 198 | state = .none 199 | animateScrollViewInset(isShow: false) 200 | } 201 | 202 | func animateScrollViewInset(isShow: Bool) { 203 | guard let scrollView = self.scrollView else { return } 204 | 205 | UIView.animate(withDuration: 0.2, delay: 0, options: .curveEaseOut, animations: { [unowned self] in 206 | switch (self.scrollDirection, self.type) { 207 | case (.vertical, .refresh): 208 | scrollView.contentInset.top = self.defaultInset.top + (isShow ? self.bounds.height : 0) 209 | case (.vertical, .loadMore): 210 | scrollView.contentInset.bottom = self.defaultInset.bottom + (isShow ? self.bounds.height : 0) 211 | case (.horizontal, .refresh): 212 | scrollView.contentInset.left = self.defaultInset.left + (isShow ? self.bounds.width : 0) 213 | case (.horizontal, .loadMore): 214 | scrollView.contentInset.right = self.defaultInset.right + (isShow ? self.bounds.width : 0) 215 | case (_, _): 216 | break 217 | } 218 | }, completion: nil) 219 | } 220 | } 221 | 222 | // MARK: - Actions ------------ 223 | 224 | extension KRPullLoader { 225 | func setUp() { 226 | checkScrollViewContentSize() 227 | addObservers() 228 | } 229 | 230 | func startLoading(force: Bool = false) { 231 | if force { 232 | if case .loading = state { return } 233 | if type == .loadMore { return } 234 | state = .loading { [weak self] in self?.endLoading() } 235 | } 236 | guard case .loading = state, let scrollView = self.scrollView else { return } 237 | layoutIfNeeded() // adjust bounds.size 238 | defaultInset = scrollView.contentInset 239 | animateScrollViewInset(isShow: true) 240 | } 241 | } 242 | -------------------------------------------------------------------------------- /KRPullLoader/Classes/NSLayoutConstraintExtensions.swift: -------------------------------------------------------------------------------- 1 | // 2 | // NSLayoutConstraintExtensions.swift 3 | // KRPullLoader 4 | // 5 | // Copyright © 2018 Krimpedance. All rights reserved. 6 | // 7 | 8 | import UIKit 9 | 10 | extension NSLayoutConstraint { 11 | convenience init(item view1: Any, attribute attr1: NSLayoutConstraint.Attribute, relatedBy relation: NSLayoutConstraint.Relation = .equal, toItem view2: Any? = nil, attribute attr2: NSLayoutConstraint.Attribute? = nil, constant: CGFloat = 0) { 12 | self.init(item: view1, attribute: attr1, relatedBy: relation, toItem: view2, attribute: attr2 ?? attr1, multiplier: 1.0, constant: constant) 13 | } 14 | } 15 | -------------------------------------------------------------------------------- /KRPullLoader/Classes/UIScrollViewExtensions.swift: -------------------------------------------------------------------------------- 1 | // 2 | // UIScrollViewExtensions.swift 3 | // KRPullLoader 4 | // 5 | // Copyright © 2017 Krimpedance. All rights reserved. 6 | // 7 | 8 | import UIKit 9 | 10 | extension UIScrollView { 11 | var distanceOffset: CGPoint { 12 | get { 13 | return CGPoint( 14 | x: contentOffset.x + contentInset.left, 15 | y: contentOffset.y + contentInset.top 16 | ) 17 | } 18 | set { 19 | let point = CGPoint( 20 | x: newValue.x - contentInset.left, 21 | y: newValue.y - contentInset.top 22 | ) 23 | setContentOffset(point, animated: true) 24 | } 25 | } 26 | 27 | var distanceEndOffset: CGPoint { 28 | get { 29 | return CGPoint( 30 | x: (contentSize.width + contentInset.right) - (contentOffset.x + bounds.width), 31 | y: (contentSize.height + contentInset.bottom) - (contentOffset.y + bounds.height) 32 | ) 33 | } 34 | set { 35 | contentOffset = CGPoint( 36 | x: newValue.x - (bounds.width - (contentSize.width + contentInset.right)), 37 | y: newValue.y - (bounds.height - (contentSize.height + contentInset.bottom)) 38 | ) 39 | } 40 | } 41 | } 42 | 43 | // MARK: - Public UIScrollView extensions ------------ 44 | 45 | public extension UIScrollView { 46 | /// Adds the PullLoadableView. 47 | /// 48 | /// - Parameters: 49 | /// - loadView: view that contain KRPullLoadable. 50 | /// - type: KRPullLoaderType. Default type is `.refresh`. 51 | func addPullLoadableView(_ loadView: KRPullLoadable, type: KRPullLoaderType = .refresh) { 52 | let loader = KRPullLoader(loadView: loadView, type: type) 53 | insertSubview(loader, at: 0) 54 | loader.setUp() 55 | } 56 | 57 | /// Remove the PullLoadableView. 58 | /// 59 | /// - Parameter type: KRPullLoaderType. 60 | func removePullLoadableView(type: KRPullLoaderType) { 61 | guard let loader = subviews.first(where: { ($0 as? KRPullLoader)?.type == type }) else { return } 62 | loader.removeFromSuperview() 63 | } 64 | 65 | /// Pull to refresh programmatically 66 | func pullToRefresh() { 67 | guard let loader = subviews.first(where: { ($0 as? KRPullLoader)?.type == .refresh }) as? KRPullLoader else { return } 68 | loader.startLoading(force: true) 69 | } 70 | } 71 | -------------------------------------------------------------------------------- /KRPullLoader/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | FMWK 17 | CFBundleShortVersionString 18 | 1.3.0 19 | CFBundleVersion 20 | $(CURRENT_PROJECT_VERSION) 21 | NSPrincipalClass 22 | 23 | 24 | 25 | -------------------------------------------------------------------------------- /KRPullLoader/KRPullLoader.h: -------------------------------------------------------------------------------- 1 | // 2 | // KRPullLoader.h 3 | // KRPullLoader 4 | // 5 | // Created by Krimpedance on 2017/06/02. 6 | // Copyright © 2017年 Krimpedance. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | //! Project version number for KRPullLoader. 12 | FOUNDATION_EXPORT double KRPullLoaderVersionNumber; 13 | 14 | //! Project version string for KRPullLoader. 15 | FOUNDATION_EXPORT const unsigned char KRPullLoaderVersionString[]; 16 | 17 | // In this header, you should import all the public headers of your framework using statements like #import 18 | 19 | 20 | -------------------------------------------------------------------------------- /KRPullLoaderTests/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | BNDL 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleVersion 20 | 1 21 | 22 | 23 | -------------------------------------------------------------------------------- /KRPullLoaderTests/KRPullLoaderTests.swift: -------------------------------------------------------------------------------- 1 | // 2 | // KRPullLoaderTests.swift 3 | // KRPullLoaderTests 4 | // 5 | // Copyright © 2017年 Krimpedance. All rights reserved. 6 | // 7 | 8 | import XCTest 9 | @testable import KRPullLoader 10 | 11 | class KRPullLoaderTests: XCTestCase { 12 | 13 | override func setUp() { 14 | super.setUp() 15 | } 16 | 17 | override func tearDown() { 18 | super.tearDown() 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Copyright (c) 2017- Krimpedance 2 | 3 | Permission is hereby granted, free of charge, to any person obtaining a copy 4 | of this software and associated documentation files (the "Software"), to deal 5 | in the Software without restriction, including without limitation the rights 6 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 7 | copies of the Software, and to permit persons to whom the Software is 8 | furnished to do so, subject to the following conditions: 9 | 10 | The above copyright notice and this permission notice shall be included in 11 | all copies or substantial portions of the Software. 12 | 13 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 16 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 18 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 19 | THE SOFTWARE. 20 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | [日本語](./README_Ja.md) 2 | 3 | # KRPullLoader 4 | 5 | [![Version](https://img.shields.io/cocoapods/v/KRPullLoader.svg?style=flat)](http://cocoapods.org/pods/KRPullLoader) 6 | [![License](https://img.shields.io/cocoapods/l/KRPullLoader.svg?style=flat)](http://cocoapods.org/pods/KRPullLoader) 7 | [![Platform](https://img.shields.io/cocoapods/p/KRPullLoader.svg?style=flat)](http://cocoapods.org/pods/KRPullLoader) 8 | [![Download](https://img.shields.io/cocoapods/dt/KRPullLoader.svg?style=flat)](http://cocoapods.org/pods/KRPullLoader) 9 | [![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage) 10 | [![CI Status](http://img.shields.io/travis/krimpedance/KRPullLoader.svg?style=flat)](https://travis-ci.org/krimpedance/KRPullLoader) 11 | 12 | 13 | 14 | ## Features 15 | - Easy-to-use 16 | - Possibles both of `pull refresh` and `load more`. 17 | 18 | ## Requirements 19 | - iOS 8.0+ 20 | - Xcode 10.2+ 21 | - Swift 5.0+ 22 | 23 | ## DEMO 24 | To run the example project, clone the repo, and open `KRPullLoaderDemo.xcodeproj` from the DEMO directory. 25 | 26 | or [appetize.io](https://appetize.io/app/d17hjrvt0fm9mfg2crmqbu4qx4) 27 | 28 | ## Installation 29 | KRPullLoader is available through [CocoaPods](http://cocoapods.org) and [Carthage](https://github.com/Carthage/Carthage). 30 | To install it, simply add the following line to your Podfile or Cartfile: 31 | 32 | ```ruby 33 | # CocoaPods 34 | pod "KRPullLoader" 35 | ``` 36 | 37 | ```ruby 38 | # Carthage 39 | github "Krimpedance/KRPullLoader" 40 | ``` 41 | 42 | ## Usage 43 | (see sample Xcode project in /Demo) 44 | 45 | #### Add views 46 | 47 | The simplest way: 48 | 49 | ```swift 50 | let refreshView = KRPullLoadView() 51 | refreshView.delegate = self 52 | tableView.addPullLoadableView(refreshView, type: .refresh) 53 | ``` 54 | 55 | `KRPullLoadView` is a simple loading view which consists of `UIActivityIndicatorView` and `UILabel`. 56 | 57 | The change in the state can be watched by the delegate method. 58 | 59 | `type` has `.refresh` and `.loadMore` and can add either of UIScrollView's top and bottom. 60 | 61 | #### Add custom views 62 | 63 | You can design loading views freely by making custom UIView in succession to `KRPullLoadable` protocol 64 | 65 | Please refer to [KRPullLoadView.swift](./KRPullLoader/Classes/KRPullLoadView.swift) or [HorizontalPullLoadView.swift](./DEMO/KRPullLoaderDemo/HorizontalPullLoadView.swift). 66 | 67 | #### KRPullLoadable 68 | 69 | ```swift 70 | /** 71 | Handler when KRPullLoaderState value changed. 72 | 73 | - parameter state: New state. 74 | - parameter type: KRPullLoaderType. 75 | */ 76 | func didChangeState(_ state: KRPullLoaderState, viewType type: KRPullLoaderType) 77 | ``` 78 | 79 | #### KRPullLoaderState 80 | 81 | This is enum which shows the state of the scrolling. 82 | 83 | ```swift 84 | .none 85 | // hides the view. 86 | .pulling(offset: CGPoint, threshold: CGFloat) 87 | // Pulling. 88 | // `offset` is pull offset (always <= 0). 89 | // This state changes to `loading` when `offset` exceeded `threshold`. 90 | .loading(completionHandler: ()->Void) 91 | // Shows the view. 92 | // You should call `completionHandler` when some actions have been completed. 93 | ``` 94 | 95 | ## Contributing to this project 96 | I'm seeking bug reports and feature requests. 97 | 98 | ## Release Note 99 | + 1.3.0 100 | - Compatible with Swift 5.0. 101 | - Add method that pull to refresh programmatically (Only `KRPullLoaderType.refresh`) 102 | 103 | + 1.2.0 104 | - Compatible with Swift 4.2. 105 | 106 | ## License 107 | KRPullLoader is available under the MIT license. See the LICENSE file for more info. 108 | -------------------------------------------------------------------------------- /README_Ja.md: -------------------------------------------------------------------------------- 1 | [English](./README.md) 2 | 3 | # KRPullLoader 4 | 5 | [![Version](https://img.shields.io/cocoapods/v/KRPullLoader.svg?style=flat)](http://cocoapods.org/pods/KRPullLoader) 6 | [![License](https://img.shields.io/cocoapods/l/KRPullLoader.svg?style=flat)](http://cocoapods.org/pods/KRPullLoader) 7 | [![Platform](https://img.shields.io/cocoapods/p/KRPullLoader.svg?style=flat)](http://cocoapods.org/pods/KRPullLoader) 8 | [![Download](https://img.shields.io/cocoapods/dt/KRPullLoader.svg?style=flat)](http://cocoapods.org/pods/KRPullLoader) 9 | [![Carthage compatible](https://img.shields.io/badge/Carthage-compatible-4BC51D.svg?style=flat)](https://github.com/Carthage/Carthage) 10 | [![CI Status](http://img.shields.io/travis/krimpedance/KRPullLoader.svg?style=flat)](https://travis-ci.org/krimpedance/KRPullLoader) 11 | 12 | 13 | 14 | ## 特徴 15 | - 使いやすさ 16 | - `引っ張って更新`, `もっと読み込む`の両アクションに対応 17 | 18 | ## 必要環境 19 | - iOS 8.0+ 20 | - Xcode 10.2+ 21 | - Swift 5.0+ 22 | 23 | ## デモ 24 | `DEMO/`以下にあるサンプルプロジェクトから確認してください． 25 | 26 | または，[Appetize.io](https://appetize.io/app/d17hjrvt0fm9mfg2crmqbu4qx4)にてシュミレートしてください． 27 | 28 | ## インストール 29 | KRPullLoaderは[CocoaPods](http://cocoapods.org)と[Carthage](https://github.com/Carthage/Carthage)で 30 | インストールすることができます． 31 | 32 | ```ruby 33 | # Podfile 34 | pod "KRPullLoader" 35 | ``` 36 | 37 | ```ruby 38 | # Cartfile 39 | github "Krimpedance/KRPullLoader" 40 | ``` 41 | 42 | ## 使い方 43 | (`/Demo`以下のサンプルを見てみてください) 44 | 45 | #### ビューの追加 46 | 47 | 最もシンプルな方法: 48 | 49 | ```swift 50 | let refreshView = KRPullLoadView() 51 | refreshView.delegate = self 52 | tableView.addPullLoadableView(refreshView, type: .refresh) 53 | ``` 54 | 55 | `KRPullLoadView`は`UIActivityIndicatorView`と`UILabel`からなる, 最もシンプルなローディングビューです. 56 | 57 | デリゲートメソッドで状態の変更を監視できます. 58 | 59 | `type`は`.refresh`と`.loadMore`があり, 上部/下部のどちらにでも追加できます. 60 | 61 | #### カスタムビューの追加 62 | 63 | ローディングビューは, `KRPullLoadable`プロトコルを継承したUIViewを作成することで, 64 | 自由にデザインすることができます. 65 | 66 | [KRPullLoadView.swift](./KRPullLoader/Classes/KRPullLoadView.swift)や[HorizontalPullLoadView.swift](./DEMO/KRPullLoaderDemo/HorizontalPullLoadView.swift)を参考にしてください. 67 | 68 | #### KRPullLoadable 69 | 70 | このプロトコルは以下のメソッドのみを持っています. 71 | 72 | ```swift 73 | /** 74 | KRPullLoaderStateが変わる時に呼ばれる関数 75 | 76 | - parameter state: 新しい状態 77 | - parameter type: 自身のタイプ. 78 | */ 79 | func didChangeState(_ state: KRPullLoaderState, viewType type: KRPullLoaderType) 80 | ``` 81 | 82 | #### KRPullLoaderState 83 | 84 | スクロールの状態を表すEnumです. 85 | 86 | ```swift 87 | .none 88 | // ローディングビューが隠れている状態(タップなし, または通常のスクロール中) 89 | .pulling(offset: CGPoint, threshold: CGFloat) 90 | // ScrollViewのContentSizeを超えて画面を引っ張っている状態 91 | // offset: オーバースクロール量 92 | // threshold: タップをやめた時に`.loading`へ移行する閾値 93 | .loading(completionHandler: ()->Void) 94 | // ローディング中 95 | // `completionHandler`を呼ぶとローディングを終了します. 96 | ``` 97 | 98 | ## ライブラリに関する質問等 99 | バグや機能のリクエストがありましたら，気軽にコメントしてください． 100 | 101 | ## リリースノート 102 | + 1.3.0 103 | - Swift 5.0 に対応. 104 | - コードからローディングビューを表示できるように変更（上部のみ） 105 | 106 | + 1.2.0 107 | - Swift 4.2 に対応. 108 | 109 | ## ライセンス 110 | KRPullLoaderはMITライセンスに準拠しています. 111 | 112 | 詳しくは`LICENSE`ファイルをみてください. 113 | --------------------------------------------------------------------------------