Repository: pigfly/A_J_Full_Screen_Image_Browser
Branch: master
Commit: b6f11ca2a2fe
Files: 22
Total size: 76.6 KB
Directory structure:
gitextract_g2d1cdig/
├── .gitignore
├── A_J_Full_Screen_Image_Browser/
│ ├── AppDelegate.swift
│ ├── Assets.xcassets/
│ │ └── AppIcon.appiconset/
│ │ └── Contents.json
│ ├── Base.lproj/
│ │ ├── LaunchScreen.storyboard
│ │ └── Main.storyboard
│ ├── Info.plist
│ ├── ViewController.swift
│ ├── animator/
│ │ └── FullScreenImageTransitionAnimator.swift
│ ├── core/
│ │ ├── FullScreenImageBrowser.swift
│ │ ├── FullScreenImageBrowserViewModel.swift
│ │ ├── MaskImageViewer.swift
│ │ ├── MediaDownloadable.swift
│ │ ├── SingleImageViewer.swift
│ │ └── ZoomableImageView.swift
│ └── helper/
│ ├── SingleMedia.swift
│ ├── UIImage+Ex.swift
│ └── UIView+SnapShot.swift
├── A_J_Full_Screen_Image_Browser.xcodeproj/
│ ├── project.pbxproj
│ └── project.xcworkspace/
│ ├── contents.xcworkspacedata
│ └── xcshareddata/
│ └── IDEWorkspaceChecks.plist
├── LICENSE
└── README.md
================================================
FILE CONTENTS
================================================
================================================
FILE: .gitignore
================================================
# Xcode
#
# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
## User settings
xcuserdata/
## compatibility with Xcode 8 and earlier (ignoring not required starting Xcode 9)
*.xcscmblueprint
*.xccheckout
## compatibility with Xcode 3 and earlier (ignoring not required starting Xcode 4)
build/
DerivedData/
*.moved-aside
*.pbxuser
!default.pbxuser
*.mode1v3
!default.mode1v3
*.mode2v3
!default.mode2v3
*.perspectivev3
!default.perspectivev3
================================================
FILE: A_J_Full_Screen_Image_Browser/AppDelegate.swift
================================================
//
// AppDelegate.swift
// A_J_Full_Screen_Image_Browser
//
// Created by Junliang Jiang on 25/2/18.
// Copyright © 2018 Junliang Jiang. All rights reserved.
//
import UIKit
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
return true
}
func applicationWillResignActive(_ application: UIApplication) {
// Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
// Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
}
func applicationDidEnterBackground(_ application: UIApplication) {
// Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
// If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}
func applicationWillEnterForeground(_ application: UIApplication) {
// Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
}
func applicationDidBecomeActive(_ application: UIApplication) {
// Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}
func applicationWillTerminate(_ application: UIApplication) {
// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}
}
================================================
FILE: A_J_Full_Screen_Image_Browser/Assets.xcassets/AppIcon.appiconset/Contents.json
================================================
{
"images" : [
{
"idiom" : "iphone",
"size" : "20x20",
"scale" : "2x"
},
{
"idiom" : "iphone",
"size" : "20x20",
"scale" : "3x"
},
{
"idiom" : "iphone",
"size" : "29x29",
"scale" : "2x"
},
{
"idiom" : "iphone",
"size" : "29x29",
"scale" : "3x"
},
{
"idiom" : "iphone",
"size" : "40x40",
"scale" : "2x"
},
{
"idiom" : "iphone",
"size" : "40x40",
"scale" : "3x"
},
{
"idiom" : "iphone",
"size" : "60x60",
"scale" : "2x"
},
{
"idiom" : "iphone",
"size" : "60x60",
"scale" : "3x"
},
{
"idiom" : "ipad",
"size" : "20x20",
"scale" : "1x"
},
{
"idiom" : "ipad",
"size" : "20x20",
"scale" : "2x"
},
{
"idiom" : "ipad",
"size" : "29x29",
"scale" : "1x"
},
{
"idiom" : "ipad",
"size" : "29x29",
"scale" : "2x"
},
{
"idiom" : "ipad",
"size" : "40x40",
"scale" : "1x"
},
{
"idiom" : "ipad",
"size" : "40x40",
"scale" : "2x"
},
{
"idiom" : "ipad",
"size" : "76x76",
"scale" : "1x"
},
{
"idiom" : "ipad",
"size" : "76x76",
"scale" : "2x"
},
{
"idiom" : "ipad",
"size" : "83.5x83.5",
"scale" : "2x"
}
],
"info" : {
"version" : 1,
"author" : "xcode"
}
}
================================================
FILE: A_J_Full_Screen_Image_Browser/Base.lproj/LaunchScreen.storyboard
================================================
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
<dependencies>
<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
<capability name="Safe area layout guides" minToolsVersion="9.0"/>
<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
</dependencies>
<scenes>
<!--View Controller-->
<scene sceneID="EHf-IW-A2E">
<objects>
<viewController id="01J-lp-oVM" sceneMemberID="viewController">
<view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
<rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
<color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
<viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
</view>
</viewController>
<placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
</objects>
<point key="canvasLocation" x="53" y="375"/>
</scene>
</scenes>
</document>
================================================
FILE: A_J_Full_Screen_Image_Browser/Base.lproj/Main.storyboard
================================================
<?xml version="1.0" encoding="UTF-8"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13529" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
<device id="retina4_7" orientation="portrait">
<adaptation id="fullscreen"/>
</device>
<dependencies>
<deployment identifier="iOS"/>
<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13527"/>
<capability name="Safe area layout guides" minToolsVersion="9.0"/>
<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
</dependencies>
<scenes>
<!--View Controller-->
<scene sceneID="tne-QT-ifu">
<objects>
<viewController id="BYZ-38-t0r" customClass="ViewController" customModule="A_J_Full_Screen_Image_Browser" customModuleProvider="target" sceneMemberID="viewController">
<view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
<rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
<subviews>
<button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="4Se-Fg-AJ1">
<rect key="frame" x="167" y="318" width="40" height="30"/>
<state key="normal" title="boom"/>
<connections>
<action selector="onButtonTapped:" destination="BYZ-38-t0r" eventType="touchUpInside" id="cU7-4k-oyE"/>
</connections>
</button>
</subviews>
<color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
<constraints>
<constraint firstItem="4Se-Fg-AJ1" firstAttribute="centerY" secondItem="8bC-Xf-vdC" secondAttribute="centerY" id="4wX-6a-B2q"/>
<constraint firstItem="4Se-Fg-AJ1" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" id="B2z-ho-Efc"/>
</constraints>
<viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
</view>
</viewController>
<placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
</objects>
</scene>
</scenes>
</document>
================================================
FILE: A_J_Full_Screen_Image_Browser/Info.plist
================================================
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>$(DEVELOPMENT_LANGUAGE)</string>
<key>CFBundleExecutable</key>
<string>$(EXECUTABLE_NAME)</string>
<key>CFBundleIdentifier</key>
<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>$(PRODUCT_NAME)</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleShortVersionString</key>
<string>1.0</string>
<key>CFBundleVersion</key>
<string>1</string>
<key>LSRequiresIPhoneOS</key>
<true/>
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>
<key>UILaunchStoryboardName</key>
<string>LaunchScreen</string>
<key>UIMainStoryboardFile</key>
<string>Main</string>
<key>UIRequiredDeviceCapabilities</key>
<array>
<string>armv7</string>
</array>
<key>UISupportedInterfaceOrientations</key>
<array>
<string>UIInterfaceOrientationPortrait</string>
<string>UIInterfaceOrientationLandscapeLeft</string>
<string>UIInterfaceOrientationLandscapeRight</string>
</array>
<key>UISupportedInterfaceOrientations~ipad</key>
<array>
<string>UIInterfaceOrientationPortrait</string>
<string>UIInterfaceOrientationPortraitUpsideDown</string>
<string>UIInterfaceOrientationLandscapeLeft</string>
<string>UIInterfaceOrientationLandscapeRight</string>
</array>
</dict>
</plist>
================================================
FILE: A_J_Full_Screen_Image_Browser/ViewController.swift
================================================
//
// ViewController.swift
// A_J_Full_Screen_Image_Browser
//
// Created by Junliang Jiang on 25/2/18.
// Copyright © 2018 Junliang Jiang. All rights reserved.
//
import UIKit
final class ViewController: UIViewController {
lazy var testVideo: MediaDownloadable = {
return SingleMedia(imageURL: URL(string: "https://dummyimage.com/600&text=thumbnail")!,
isVideoThumbnail: true,
videoURL: URL(string: "http://jplayer.org/video/m4v/Big_Buck_Bunny_Trailer.m4v")!)
}()
lazy var media: [MediaDownloadable] = {
return [testVideo,
SingleMedia(imageURL: URL(string: "https://dummyimage.com/300")!),
SingleMedia(imageURL: URL(string: "https://dummyimage.com/600")!),
testVideo]
}()
@IBAction func onButtonTapped(_ sender: UIButton) {
let vm = FullScreenImageBrowserViewModel(media: media)
let x = FullScreenImageBrowser(viewModel: vm)
present(x, animated: true, completion: nil)
}
}
================================================
FILE: A_J_Full_Screen_Image_Browser/animator/FullScreenImageTransitionAnimator.swift
================================================
//
// TransitionAnimator.swift
// A_J_Full_Screen_Image_Browser
//
// Created by Junliang Jiang on 25/2/18.
// Copyright © 2018 Junliang Jiang. All rights reserved.
//
import UIKit
public final class FullScreenImageTransitionAnimator: NSObject, UIViewControllerAnimatedTransitioning {
var dismissing: Bool = false
var startingView: UIView?
var endingView: UIView?
var startingViewForAnimation: UIView?
var endingViewForAnimation: UIView?
var animationDurationWithZooming = 0.5
var animationDurationWithoutZooming = 0.3
var animationDurationFadeRatio = 4.0 / 9.0 {
didSet(value) {
animationDurationFadeRatio = min(value, 1.0)
}
}
var animationDurationEndingViewFadeInRatio = 0.1 {
didSet(value) {
animationDurationEndingViewFadeInRatio = min(value, 1.0)
}
}
var animationDurationStartingViewFadeOutRatio = 0.05 {
didSet(value) {
animationDurationStartingViewFadeOutRatio = min(value, 1.0)
}
}
var zoomingAnimationSpringDamping = 0.9
var shouldPerformZoomingAnimation: Bool {
return startingView != nil && endingView != nil
}
public func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
if shouldPerformZoomingAnimation {
return animationDurationWithZooming
}
return animationDurationWithoutZooming
}
func fadeDurationForTransitionContext(_ transitionContext: UIViewControllerContextTransitioning) -> TimeInterval {
if shouldPerformZoomingAnimation {
return transitionDuration(using: transitionContext) * animationDurationFadeRatio
}
return transitionDuration(using: transitionContext)
}
// MARK: - UIViewControllerAnimatedTransitioning
public func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
setupTransitionContainerHierarchyWithTransitionContext(transitionContext)
if shouldPerformZoomingAnimation {
performZoomingAnimationWithTransitionContext(transitionContext)
}
performFadeAnimationWithTransitionContext(transitionContext)
}
func setupTransitionContainerHierarchyWithTransitionContext(_ transitionContext: UIViewControllerContextTransitioning) {
if let toView = transitionContext.view(forKey: UITransitionContextViewKey.to),
let toViewController = transitionContext.viewController(forKey: UITransitionContextViewControllerKey.to) {
toView.frame = transitionContext.finalFrame(for: toViewController)
let containerView = transitionContext.containerView
if !toView.isDescendant(of: containerView) {
containerView.addSubview(toView)
}
}
if dismissing {
if let fromView = transitionContext.view(forKey: UITransitionContextViewKey.from) {
transitionContext.containerView.bringSubview(toFront: fromView)
}
}
}
func performFadeAnimationWithTransitionContext(_ transitionContext: UIViewControllerContextTransitioning) {
let fadeView = dismissing ? transitionContext.view(forKey: UITransitionContextViewKey.from) : transitionContext.view(forKey: UITransitionContextViewKey.to)
let beginningAlpha: CGFloat = dismissing ? 1.0 : 0.0
let endingAlpha: CGFloat = dismissing ? 0.0 : 1.0
fadeView?.alpha = beginningAlpha
UIView.animate(withDuration: fadeDurationForTransitionContext(transitionContext), animations: { () -> Void in
fadeView?.alpha = endingAlpha
}) { _ in
if !self.shouldPerformZoomingAnimation {
self.completeTransitionWithTransitionContext(transitionContext)
}
}
}
func performZoomingAnimationWithTransitionContext(_ transitionContext: UIViewControllerContextTransitioning) {
let containerView = transitionContext.containerView
guard let startingView = startingView, let endingView = endingView else {
return
}
guard let startingViewForAnimation = self.startingViewForAnimation ?? self.startingView?.aj_snapshotView(),
let endingViewForAnimation = self.endingViewForAnimation ?? self.endingView?.aj_snapshotView() else {
return
}
let finalEndingViewTransform = endingView.transform
let endingViewInitialTransform = startingViewForAnimation.frame.height / endingViewForAnimation.frame.height
let translatedStartingViewCenter = startingView.aj_translatedCenterPointToContainerView(containerView)
startingViewForAnimation.center = translatedStartingViewCenter
endingViewForAnimation.transform = endingViewForAnimation.transform.scaledBy(x: endingViewInitialTransform, y: endingViewInitialTransform)
endingViewForAnimation.center = translatedStartingViewCenter
endingViewForAnimation.alpha = 0.0
containerView.addSubview(startingViewForAnimation)
containerView.addSubview(endingViewForAnimation)
endingView.alpha = 0.0
startingView.alpha = 0.0
let fadeInDuration = transitionDuration(using: transitionContext) * animationDurationEndingViewFadeInRatio
let fadeOutDuration = transitionDuration(using: transitionContext) * animationDurationStartingViewFadeOutRatio
UIView.animate(withDuration: fadeInDuration, delay: 0.0, options: [.allowAnimatedContent, .beginFromCurrentState], animations: { () -> Void in
endingViewForAnimation.alpha = 1.0
}) { _ in
UIView.animate(withDuration: fadeOutDuration, delay: 0.0, options: [.allowAnimatedContent, .beginFromCurrentState], animations: { () -> Void in
startingViewForAnimation.alpha = 0.0
}, completion: { _ in
startingViewForAnimation.removeFromSuperview()
})
}
let startingViewFinalTransform = 1.0 / endingViewInitialTransform
let translatedEndingViewFinalCenter = endingView.aj_translatedCenterPointToContainerView(containerView)
UIView.animate(withDuration: transitionDuration(using: transitionContext), delay: 0.0, usingSpringWithDamping:CGFloat(zoomingAnimationSpringDamping), initialSpringVelocity:0, options: [.allowAnimatedContent, .beginFromCurrentState], animations: { () -> Void in
endingViewForAnimation.transform = finalEndingViewTransform
endingViewForAnimation.center = translatedEndingViewFinalCenter
startingViewForAnimation.transform = startingViewForAnimation.transform.scaledBy(x: startingViewFinalTransform, y: startingViewFinalTransform)
startingViewForAnimation.center = translatedEndingViewFinalCenter
}) { _ in
endingViewForAnimation.removeFromSuperview()
endingView.alpha = 1.0
startingView.alpha = 1.0
self.completeTransitionWithTransitionContext(transitionContext)
}
}
func completeTransitionWithTransitionContext(_ transitionContext: UIViewControllerContextTransitioning) {
if transitionContext.isInteractive {
if transitionContext.transitionWasCancelled {
transitionContext.cancelInteractiveTransition()
} else {
transitionContext.finishInteractiveTransition()
}
}
transitionContext.completeTransition(!transitionContext.transitionWasCancelled)
}
}
================================================
FILE: A_J_Full_Screen_Image_Browser/core/FullScreenImageBrowser.swift
================================================
//
// FullScreenImageBrowser.swift
// A_J_Full_Screen_Image_Browser
//
// Created by Junliang Jiang on 25/2/18.
// Copyright © 2018 Junliang Jiang. All rights reserved.
//
import UIKit
import AVKit
public final class FullScreenImageBrowser: UIViewController {
// MARK: - Property
public var viewModel: FullScreenImageBrowserViewModel
public private(set) var pageViewController: UIPageViewController
public let transitionAnimator: FullScreenImageTransitionAnimator = FullScreenImageTransitionAnimator()
public private(set) lazy var singleTapGestureRecognizer: UITapGestureRecognizer = {
return UITapGestureRecognizer(target: self, action: #selector(FullScreenImageBrowser.handleSingleTapGestureRecognizer(_:)))
}()
public private(set) lazy var panGestureRecognizer: UIPanGestureRecognizer = {
return UIPanGestureRecognizer(target: self, action: #selector(FullScreenImageBrowser.handlePanGestureRecognizer(_:)))
}()
/*
* The mask view displayed over images
*/
public var maskView: MaskImageView = MaskImageView(frame: .zero) {
willSet {
maskView.removeFromSuperview()
}
didSet {
maskView.imagesBrowser = self
maskView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
maskView.frame = view.bounds
view.addSubview(maskView)
}
}
public var currentMedia: MediaDownloadable? {
return currentImageViewer?.media
}
private var statusBarHidden = false
// MARK: - Init
required public init?(coder aDecoder: NSCoder) {
viewModel = FullScreenImageBrowserViewModel(media: [])
pageViewController = UIPageViewController()
super.init(nibName: nil, bundle: nil)
initialSetupWithImage(nil)
}
public override init(nibName nibNameOrNil: String!, bundle nibBundleOrNil: Bundle!) {
viewModel = FullScreenImageBrowserViewModel(media: [])
pageViewController = UIPageViewController()
super.init(nibName: nil, bundle: nil)
initialSetupWithImage(nil)
}
/**
The designated initializer
- parameter viewModel: View model instance for Full Screen Image Browser.
- parameter startingImage: The image to be displayed at first place when launching image browser.
- parameter referenceView: The view from which to animate.
- returns: an instance of full screen image browser
*/
public required init(viewModel: FullScreenImageBrowserViewModel,
startingImage: MediaDownloadable? = nil,
referenceView: UIView? = nil) {
self.viewModel = viewModel
pageViewController = UIPageViewController()
super.init(nibName: nil, bundle: nil)
initialSetupWithImage(startingImage == nil ? viewModel.media.first : startingImage)
transitionAnimator.startingView = referenceView
transitionAnimator.endingView = currentImageViewer?.zoomableImageview.imageView
}
private func initialSetupWithImage(_ image: MediaDownloadable? = nil) {
maskView.imagesBrowser = self
setupPageViewControllerWith(image)
modalPresentationStyle = .custom
transitioningDelegate = self
modalPresentationCapturesStatusBarAppearance = true
let textColor = view.tintColor ?? UIColor.white
#if swift(>=4.0)
maskView.titleTextAttributes = [NSAttributedStringKey.foregroundColor: textColor]
#else
maskView.titleTextAttributes = [NSForegroundColorAttributeName: textColor]
#endif
}
private func setupPageViewControllerWith(_ image: MediaDownloadable? = nil) {
pageViewController = UIPageViewController(transitionStyle: .scroll, navigationOrientation: .horizontal, options: [UIPageViewControllerOptionInterPageSpacingKey: 16.0])
pageViewController.view.backgroundColor = .clear
pageViewController.delegate = self
pageViewController.dataSource = self
if let _image = image, viewModel.containsMedia(_image) {
changeToImage(_image, animated: false)
} else if let _image = viewModel.media.first {
changeToImage(_image, animated: false)
}
}
private func setupMaskView() {
maskView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
maskView.frame = view.bounds
view.addSubview(maskView)
maskView.setHidden(true, animated: false)
}
deinit {
pageViewController.delegate = nil
pageViewController.dataSource = nil
}
// MARK: - View Controller Life Cycle
override public func viewDidLoad() {
super.viewDidLoad()
view.tintColor = .white
view.backgroundColor = .black
pageViewController.view.backgroundColor = .clear
pageViewController.view.addGestureRecognizer(panGestureRecognizer)
pageViewController.view.addGestureRecognizer(singleTapGestureRecognizer)
addChildViewController(pageViewController)
view.addSubview(pageViewController.view)
pageViewController.view.autoresizingMask = [.flexibleWidth, .flexibleHeight]
pageViewController.didMove(toParentViewController: self)
setupMaskView()
}
override public func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
// This fix issue that navigationBar animate to up
// when presentingViewController is UINavigationViewController
statusBarHidden = true
UIView.animate(withDuration: 0.25) { self.setNeedsStatusBarAppearanceUpdate() }
updateCurrentImageInfo()
}
// MARK: - Public
/**
Displays the specified image. Can be called before the view controller is displayed.
- parameter media: The photo to make the currently displayed photo.
- parameter animated: Whether to animate the transition to the new photo.
*/
public func changeToImage(_ media: MediaDownloadable,
animated: Bool,
direction: UIPageViewControllerNavigationDirection = .forward) {
if !viewModel.containsMedia(media) { return }
let imageViewer = SingleMediaViewerFor(media)
pageViewController.setViewControllers([imageViewer], direction: direction, animated: animated, completion: nil)
updateCurrentImageInfo()
}
private func updateCurrentImageInfo() {
if let _currentImage = currentMedia {
maskView.populateWithImage(_currentImage)
}
}
}
// MARK: - UIPageViewController DataSource Delegate
extension FullScreenImageBrowser: UIPageViewControllerDataSource, UIPageViewControllerDelegate {
/*
* Currently displayed by page view controller
*/
public var currentImageViewer: SingleMediaViewer? {
return pageViewController.viewControllers?.first as? SingleMediaViewer
}
public func SingleMediaViewerFor(_ media: MediaDownloadable) -> SingleMediaViewer {
let imageViewer = SingleMediaViewer(media: media)
singleTapGestureRecognizer.require(toFail: imageViewer.doubleTapGestureRecognizer)
return imageViewer
}
@objc public func pageViewController(_ pageViewController: UIPageViewController, viewControllerBefore viewController: UIViewController) -> UIViewController? {
guard let imageViewer = viewController as? SingleMediaViewer,
let index = viewModel.indexOfMedia(imageViewer.media),
let newImage = viewModel.mediaAtIndex(index - 1) else {
return nil
}
return SingleMediaViewerFor(newImage)
}
@objc public func pageViewController(_ pageViewController: UIPageViewController, viewControllerAfter viewController: UIViewController) -> UIViewController? {
guard let imageViewer = viewController as? SingleMediaViewer,
let index = viewModel.indexOfMedia(imageViewer.media),
let newImage = viewModel.mediaAtIndex(index + 1) else {
return nil
}
return SingleMediaViewerFor(newImage)
}
@objc public func pageViewController(_ pageViewController: UIPageViewController, didFinishAnimating finished: Bool, previousViewControllers: [UIViewController], transitionCompleted completed: Bool) {
if completed {
updateCurrentImageInfo()
}
}
}
// MARK: - UIViewController Transitioning Delegate
extension FullScreenImageBrowser: UIViewControllerTransitioningDelegate {
public func animationController(forPresented presented: UIViewController, presenting: UIViewController, source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
transitionAnimator.dismissing = false
return transitionAnimator
}
public func animationController(forDismissed dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
transitionAnimator.dismissing = true
return transitionAnimator
}
}
// MARK: - Gesture Recognizer
extension FullScreenImageBrowser {
@objc private func handleSingleTapGestureRecognizer(_ gestureRecognizer: UITapGestureRecognizer) {
maskView.setHidden(!maskView.isHidden, animated: true)
guard let currentMedia = currentMedia, currentMedia.isVideoThumbnail == true else { return }
playVideo()
}
@objc private func handlePanGestureRecognizer(_ gestureRecognizer: UIPanGestureRecognizer) {
dismiss(animated: true, completion: nil)
}
}
// MARK: - Status Bar
extension FullScreenImageBrowser {
public override var prefersStatusBarHidden: Bool {
if let parentStatusBarHidden = presentingViewController?.prefersStatusBarHidden , parentStatusBarHidden == true {
return parentStatusBarHidden
}
return statusBarHidden
}
public override var preferredStatusBarStyle: UIStatusBarStyle {
return .default
}
public override var preferredStatusBarUpdateAnimation: UIStatusBarAnimation {
return .fade
}
}
// MARK: - Video Showcase
extension FullScreenImageBrowser {
public func playVideo() {
guard let currentMedia = currentMedia else { return }
guard let videoURL = currentMedia.videoURL else { debugPrint("\(#file) invalid url found for video"); return }
let player = AVPlayer(url: videoURL)
let playerController = AVPlayerViewController()
playerController.player = player
present(playerController, animated: true, completion: nil)
}
}
================================================
FILE: A_J_Full_Screen_Image_Browser/core/FullScreenImageBrowserViewModel.swift
================================================
//
// FullScreenImageBrowserViewModel.swift
// A_J_Full_Screen_Image_Browser
//
// Created by Alex Jiang on 26/2/18.
// Copyright © 2018 Junliang Jiang. All rights reserved.
//
import Foundation
public struct FullScreenImageBrowserViewModel {
/// Designated Init
///
/// - Parameter media: a collection of media to be either video or image
public init(media: [MediaDownloadable]) {
self.media = media
}
public private(set) var media: [MediaDownloadable]
// MARK: - Media
public var numberOfImages: Int {
return media.count
}
public func mediaAtIndex(_ index: Int) -> MediaDownloadable? {
if (index < media.count && index >= 0) {
return media[index]
}
return nil
}
public func indexOfMedia(_ media: MediaDownloadable) -> Int? {
return self.media.index(where: { $0 === media })
}
public func containsMedia(_ media: MediaDownloadable) -> Bool {
return indexOfMedia(media) != nil
}
// MARK: - Video
public var shouldShowVideo: Bool {
return media.contains { $0.isVideoThumbnail == true }
}
public func videoURLAtIndex(_ index: Int) -> URL? {
guard index < media.count && index > 0 else { return nil }
guard let videoURL = media[index].videoURL else { return nil }
return videoURL
}
}
================================================
FILE: A_J_Full_Screen_Image_Browser/core/MaskImageViewer.swift
================================================
//
// MaskImageViewer.swift
// A_J_Full_Screen_Image_Browser
//
// Created by Junliang Jiang on 25/2/18.
// Copyright © 2018 Junliang Jiang. All rights reserved.
//
import UIKit
public protocol MaskImageViewable: class {
var imagesBrowser: FullScreenImageBrowser? { get set }
func populateWithImage(_ image: MediaDownloadable)
func setHidden(_ hidden: Bool, animated: Bool)
}
public final class MaskImageView: UIView , MaskImageViewable {
public private(set) var navigationBar: UINavigationBar!
public private(set) var navigationItem: UINavigationItem!
public weak var imagesBrowser: FullScreenImageBrowser?
private var currentMedia: MediaDownloadable?
public var leftBarButtonItem: UIBarButtonItem? {
didSet {
navigationItem.leftBarButtonItem = leftBarButtonItem
}
}
#if swift(>=4.0)
public var titleTextAttributes: [NSAttributedStringKey : AnyObject] = [:] {
didSet {
navigationBar.titleTextAttributes = titleTextAttributes
}
}
#else
public var titleTextAttributes: [String : AnyObject] = [:] {
didSet {
navigationBar.titleTextAttributes = titleTextAttributes
}
}
#endif
public override init(frame: CGRect) {
super.init(frame: frame)
setupNavigationBar()
}
required public init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
public override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
if let hitView = super.hitTest(point, with: event) , hitView != self {
return hitView
}
return nil
}
public override func layoutSubviews() {
UIView.performWithoutAnimation {
self.navigationBar.invalidateIntrinsicContentSize()
self.navigationBar.layoutIfNeeded()
}
super.layoutSubviews()
}
public func setHidden(_ hidden: Bool, animated: Bool) {
if isHidden == hidden { return }
if !animated { isHidden = hidden; return }
isHidden = false
alpha = hidden ? 1.0 : 0.0
UIView.animate(withDuration: 0.2,
delay: 0.0,
options: [.allowAnimatedContent, .allowUserInteraction],
animations: { self.alpha = hidden ? 0.0 : 1.0 },
completion: { _ in self.alpha = 1.0; self.isHidden = hidden })
}
public func populateWithImage(_ media: MediaDownloadable) {
currentMedia = media
guard let _imagesBrowser = imagesBrowser,
let index = imagesBrowser?.viewModel.indexOfMedia(media) else { return }
navigationItem.title = String(format:NSLocalizedString("%d of %d",comment:""),
index+1,
_imagesBrowser.viewModel.numberOfImages)
}
@objc private func closeButtonTapped(_ sender: UIBarButtonItem) {
imagesBrowser?.dismiss(animated: true, completion: nil)
}
private func setupNavigationBar() {
navigationBar = UINavigationBar()
navigationBar.translatesAutoresizingMaskIntoConstraints = false
navigationBar.backgroundColor = UIColor.clear
navigationBar.barTintColor = nil
navigationBar.isTranslucent = true
navigationBar.shadowImage = UIImage()
navigationBar.setBackgroundImage(UIImage(), for: .default)
navigationItem = UINavigationItem(title: "")
navigationBar.items = [navigationItem]
addSubview(navigationBar)
let topConstraint: NSLayoutConstraint
if #available(iOS 11.0, *) {
topConstraint = navigationBar.topAnchor.constraint(equalTo: safeAreaLayoutGuide.topAnchor)
} else {
topConstraint = navigationBar.topAnchor.constraint(equalTo: self.topAnchor)
}
let widthConstraint = navigationBar.widthAnchor.constraint(equalTo: self.widthAnchor)
let horizontalConstraint = navigationBar.centerXAnchor.constraint(equalTo: self.centerXAnchor)
NSLayoutConstraint.activate([topConstraint, widthConstraint, horizontalConstraint])
if let bundlePath = Bundle(for: type(of: self)).path(forResource: "FullScreenImageBrowser", ofType: "bundle") {
let bundle = Bundle(path: bundlePath)
leftBarButtonItem = UIBarButtonItem(image: UIImage(named: "close", in: bundle, compatibleWith: nil),
style: .plain,
target: self,
action: #selector(MaskImageView.closeButtonTapped(_:)))
} else {
leftBarButtonItem = UIBarButtonItem(barButtonSystemItem: .cancel,
target: self,
action: #selector(MaskImageView.closeButtonTapped(_:)))
}
}
}
================================================
FILE: A_J_Full_Screen_Image_Browser/core/MediaDownloadable.swift
================================================
//
// MediaDownloadable.swift
// A_J_Full_Screen_Image_Browser
//
// Created by Junliang Jiang on 25/2/18.
// Copyright © 2018 Junliang Jiang. All rights reserved.
//
import UIKit
/// Media Type protocol for defining media to be either image, or video
public protocol MediaDownloadable: class {
var image: UIImage? { get }
var imageURL: URL? { get }
var isVideoThumbnail: Bool { get set }
var videoURL: URL? { get }
func loadImageWithCompletionHandler(_ completion: @escaping (_ image: UIImage?, _ error: NSError?) -> ())
}
================================================
FILE: A_J_Full_Screen_Image_Browser/core/SingleImageViewer.swift
================================================
//
// SingleMediaViewer.swift
// A_J_Full_Screen_Image_Browser
//
// Created by Junliang Jiang on 25/2/18.
// Copyright © 2018 Junliang Jiang. All rights reserved.
//
import UIKit
public final class SingleMediaViewer: UIViewController, UIScrollViewDelegate {
// MARK: - Property
public var media: MediaDownloadable
public lazy private(set) var zoomableImageview: ZoomableImageView = {
return ZoomableImageView()
}()
public lazy private(set) var doubleTapGestureRecognizer: UITapGestureRecognizer = {
let gesture = UITapGestureRecognizer(target: self, action: #selector(SingleMediaViewer.handleDoubleTapWithGestureRecognizer(_:)))
gesture.numberOfTapsRequired = 2
return gesture
}()
public lazy private(set) var activityIndicator: UIActivityIndicatorView = {
let activityIndicator = UIActivityIndicatorView(activityIndicatorStyle: .white)
activityIndicator.startAnimating()
return activityIndicator
}()
// MARK: - Init
public init(media: MediaDownloadable) {
self.media = media
super.init(nibName: nil, bundle: nil)
}
required public init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
deinit {
zoomableImageview.delegate = nil
}
// MARK: - View Controller Life Cycle
public override func viewDidLoad() {
super.viewDidLoad()
zoomableImageview.delegate = self
zoomableImageview.frame = view.bounds
zoomableImageview.autoresizingMask = [.flexibleWidth, .flexibleHeight]
view.addSubview(zoomableImageview)
view.addSubview(activityIndicator)
activityIndicator.center = CGPoint(x: view.bounds.midX, y: view.bounds.midY)
activityIndicator.autoresizingMask = [.flexibleTopMargin, .flexibleLeftMargin, .flexibleRightMargin, .flexibleBottomMargin]
activityIndicator.sizeToFit()
view.addGestureRecognizer(doubleTapGestureRecognizer)
if let image = media.image {
zoomableImageview.image = image
activityIndicator.stopAnimating()
} else {
loadmedia()
}
}
public override func viewWillLayoutSubviews() {
super.viewWillLayoutSubviews()
zoomableImageview.frame = view.bounds
}
// MARK: - Private
private func loadmedia() {
view.bringSubview(toFront: activityIndicator)
media.loadImageWithCompletionHandler({ [weak self] (image, error) -> () in
let completeLoading = {
self?.activityIndicator.stopAnimating()
self?.zoomableImageview.image = image
}
if Thread.isMainThread {
completeLoading()
} else {
DispatchQueue.main.async(execute: { () -> Void in
completeLoading()
})
}
})
}
@objc private func handleDoubleTapWithGestureRecognizer(_ recognizer: UITapGestureRecognizer) {
let pointInView = recognizer.location(in: zoomableImageview.imageView)
var newZoomScale = zoomableImageview.maximumZoomScale
if zoomableImageview.zoomScale >= zoomableImageview.maximumZoomScale ||
abs(zoomableImageview.zoomScale - zoomableImageview.maximumZoomScale) <= 0.01 {
newZoomScale = zoomableImageview.minimumZoomScale
}
let scrollViewSize = zoomableImageview.bounds.size
let width = scrollViewSize.width / newZoomScale
let height = scrollViewSize.height / newZoomScale
let originX = pointInView.x - (width / 2.0)
let originY = pointInView.y - (height / 2.0)
let rectToZoom = CGRect(x: originX, y: originY, width: width, height: height)
zoomableImageview.zoom(to: rectToZoom, animated: true)
}
// MARK:- UIScrollViewDelegate
public func viewForZooming(in scrollView: UIScrollView) -> UIView? {
return zoomableImageview.imageView
}
public func scrollViewWillBeginZooming(_ scrollView: UIScrollView, with view: UIView?) {
scrollView.panGestureRecognizer.isEnabled = true
}
public func scrollViewDidEndZooming(_ scrollView: UIScrollView, with view: UIView?, atScale scale: CGFloat) {
if (scrollView.zoomScale == scrollView.minimumZoomScale) {
scrollView.panGestureRecognizer.isEnabled = false
}
}
}
================================================
FILE: A_J_Full_Screen_Image_Browser/core/ZoomableImageView.swift
================================================
//
// ZoomableImageView.swift
// A_J_Full_Screen_Image_Browser
//
// Created by Junliang Jiang on 25/2/18.
// Copyright © 2018 Junliang Jiang. All rights reserved.
//
import UIKit
final public class ZoomableImageView: UIScrollView {
// MARK: - Property
public lazy var imageView: UIImageView = {
let imageView = UIImageView(frame: bounds)
addSubview(imageView)
return imageView
}()
public var image: UIImage? {
didSet {
updateImage(image)
}
}
override public var frame: CGRect {
didSet {
updateZoomScale()
centerScrollViewContents()
}
}
// MARK: - Init
override public init(frame: CGRect) {
super.init(frame: frame)
setupImageScrollView()
updateZoomScale()
}
required public init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
setupImageScrollView()
updateZoomScale()
}
private func setupImageScrollView() {
showsVerticalScrollIndicator = false
showsHorizontalScrollIndicator = false;
bouncesZoom = true;
decelerationRate = UIScrollViewDecelerationRateFast;
}
// MARK: - View Life Cycle
override public func didAddSubview(_ subview: UIView) {
super.didAddSubview(subview)
centerScrollViewContents()
}
// MARK: - Private
private func centerScrollViewContents() {
var horizontalInset: CGFloat = 0
var verticalInset: CGFloat = 0
if contentSize.width < bounds.width {
horizontalInset = (bounds.width - contentSize.width) * 0.5
}
if contentSize.height < bounds.height {
verticalInset = (bounds.height - contentSize.height) * 0.5
}
if window?.screen.scale < 2.0 {
horizontalInset = floor(horizontalInset)
verticalInset = floor(verticalInset)
}
contentInset = UIEdgeInsetsMake(verticalInset, horizontalInset, verticalInset, horizontalInset);
}
private func updateImage(_ image: UIImage?) {
let size = image?.size ?? CGSize.zero
imageView.transform = CGAffineTransform.identity
imageView.image = image
imageView.frame = CGRect(origin: .zero, size: size)
contentSize = size
updateZoomScale()
centerScrollViewContents()
}
private func updateZoomScale() {
guard let image = imageView.image else { return }
let scrollViewFrame = bounds
let scaleWidth = scrollViewFrame.size.width / image.size.width
let scaleHeight = scrollViewFrame.size.height / image.size.height
let minScale = min(scaleWidth, scaleHeight)
minimumZoomScale = minScale
maximumZoomScale = max(minScale, maximumZoomScale)
if abs(minScale - maximumZoomScale) < 0.01 {
maximumZoomScale = minScale * 3.0
}
zoomScale = minimumZoomScale
panGestureRecognizer.isEnabled = false
}
}
/// Make binary `<` operator to accept optional
///
/// - Parameters:
/// - lhs: expression on the left hand side of the `<`
/// - rhs: expression on the right hand side of the `<`
/// - Returns: Boolen value of the comparsion
private func < <T : Comparable>(lhs: T?, rhs: T?) -> Bool {
switch (lhs, rhs) {
case let (l?, r?):
return l < r
case (nil, _?):
return true
default:
return false
}
}
================================================
FILE: A_J_Full_Screen_Image_Browser/helper/SingleMedia.swift
================================================
//
// SingleMedia.swift
// A_J_Full_Screen_Image_Browser
//
// Created by Alex Jiang on 26/2/18.
// Copyright © 2018 Junliang Jiang. All rights reserved.
//
import UIKit
/// A concrete media type for supporting both image and video to be downloadable
public final class SingleMedia: MediaDownloadable {
// MARK: - Properties
public var image: UIImage?
public var imageURL: URL?
public var videoURL: URL?
public var isVideoThumbnail: Bool
// MARK: - Init
public init(imageURL: URL?, isVideoThumbnail: Bool = false, videoURL: URL? = nil) {
self.imageURL = imageURL
self.videoURL = videoURL
self.isVideoThumbnail = isVideoThumbnail
}
// MARK: - Downloadable
public func loadImageWithCompletionHandler(_ completion: @escaping (UIImage?, NSError?) -> ()) {
if let image = image {
completion(image, nil)
return
}
loadImageWithURL(imageURL, completion: completion)
}
// override this method to use your favourite networking service
public func loadImageWithURL(_ url: URL?, completion: @escaping (_ image: UIImage?, _ error: NSError?) -> ()) {
let session = URLSession(configuration: URLSessionConfiguration.default)
guard let imageURL = url else { completion(nil, NSError(domain: "FullScreenImageBrowserDomain", code: -2, userInfo: [ NSLocalizedDescriptionKey: "Image URL not found."])); return }
session.dataTask(with: imageURL, completionHandler: {[unowned self] (response, data, error) in
DispatchQueue.main.async {
if error != nil {
completion(nil, error as NSError?)
} else if let response = response, let image = UIImage(data: response) {
completion(self.isVideoThumbnail ? image.aj_imageWithPlayIcon() : image, nil)
} else {
completion(nil, NSError(domain: "FullScreenImageBrowserDomain", code: -1, userInfo: [ NSLocalizedDescriptionKey: "Couldn't load image"]))
}
session.finishTasksAndInvalidate()
}
}).resume()
}
}
================================================
FILE: A_J_Full_Screen_Image_Browser/helper/UIImage+Ex.swift
================================================
//
// UIImage+Ex.swift
// A_J_Full_Screen_Image_Browser
//
// Created by Alex Jiang on 27/4/18.
// Copyright © 2018 Junliang Jiang. All rights reserved.
//
import UIKit
public extension UIImage {
public func aj_imageWithPlayIcon() -> UIImage {
guard let bundlePath = Bundle(for: SingleMedia.self).path(forResource: "FullScreenImageBrowser", ofType: "bundle") else { return self }
guard let playButtonImage = UIImage(named: "video-play-icon", in: Bundle(path: bundlePath), compatibleWith: nil) else { return self }
UIGraphicsBeginImageContextWithOptions(size, false, 0.0)
draw(in: CGRect(x: 0, y: 0, width: size.width, height: size.height))
let width = min(size.width, size.height) * 0.2
let x = size.width / 2.0 - width / 2.0
let y = size.height / 2.0 - width / 2.0
playButtonImage.draw(in: CGRect(x: x, y: y, width: width, height: width))
guard let result = UIGraphicsGetImageFromCurrentImageContext() else { return self }
UIGraphicsEndImageContext()
return result
}
}
================================================
FILE: A_J_Full_Screen_Image_Browser/helper/UIView+SnapShot.swift
================================================
//
// UIView+SnapShot.swift
// A_J_Full_Screen_Image_Browser
//
// Created by Junliang Jiang on 25/2/18.
// Copyright © 2018 Junliang Jiang. All rights reserved.
//
import UIKit
public extension UIView {
/// Create snapshot view with layer transform information if available
///
/// - Returns: A new view object based on a snapshot of the current view’s rendered contents
public func aj_snapshotView() -> UIView {
guard let contents = layer.contents else {
return snapshotView(afterScreenUpdates: true) ?? UIView()
}
var snapshotedView: UIView!
if let view = self as? UIImageView {
snapshotedView = type(of: view).init(image: view.image)
snapshotedView.bounds = view.bounds
} else {
snapshotedView = UIView(frame: frame)
snapshotedView.layer.contents = contents
snapshotedView.layer.bounds = layer.bounds
}
snapshotedView.layer.cornerRadius = layer.cornerRadius
snapshotedView.layer.masksToBounds = layer.masksToBounds
snapshotedView.contentMode = contentMode
snapshotedView.transform = transform
return snapshotedView
}
/// Converts a point from the coordinate space of the current object to the container view coordinate space.
///
/// - Parameter containerView: container view for the point
/// - Returns: A point specified in the container view coordinate space.
public func aj_translatedCenterPointToContainerView(_ containerView: UIView) -> CGPoint {
var centerPoint = center
if let scrollView = self.superview as? UIScrollView , scrollView.zoomScale != 1.0 {
centerPoint.x += (scrollView.bounds.width - scrollView.contentSize.width) / 2.0 + scrollView.contentOffset.x
centerPoint.y += (scrollView.bounds.height - scrollView.contentSize.height) / 2.0 + scrollView.contentOffset.y
}
return self.superview?.convert(centerPoint, to: containerView) ?? .zero
}
}
================================================
FILE: A_J_Full_Screen_Image_Browser.xcodeproj/project.pbxproj
================================================
// !$*UTF8*$!
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archiveVersion = 1;
classes = {
};
objectVersion = 48;
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================================================
FILE: LICENSE
================================================
Copyright (c) 2018 Junliang Jiang Foundation (https://pigfly.github.io)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
================================================
FILE: README.md
================================================
<p align="center">
<img src="https://github.com/pigfly/A_J_Full_Screen_Image_Browser/blob/master/assets/logo.png?raw=true">
</p>
# A-J-Full-Screen-Image-Browser
A-J-Full-Screen-Image-Browser is an drop-in solution for full screen image and video browser
## Features
- [x] No Dependency, 100% iOS Native
- [x] Support both iPad and iPhone family
- [x] Support image resizing on different screen orientation
- [x] Support multiple videos and images
- [x] Image can be panned, zoomed and rotated
- [x] Double tap to zoom all the way in and again to zoom all the way out
- [x] Swipe to dismiss
- [x] High level diagram
- [x] MVVM architecture
- [x] Full documentation
- [x] Easy to customise
## Requirements
- iOS 9.0+ / macOS 10.10+ / tvOS 9.0+ / watchOS 2.0+
- Xcode 9.0+
- Swift 4.0+
## Installation
- drag and drop the entire `A_J_Full_Screen_Image_Browser` into your project
## Full Usage Example
```swift
import UIKit
final class ViewController: UIViewController {
lazy var testVideo: MediaDownloadable = {
return SingleMedia(imageURL: URL(string: "https://dummyimage.com/600&text=thumbnail")!,
isVideoThumbnail: true,
videoURL: URL(string: "http://jplayer.org/video/m4v/Big_Buck_Bunny_Trailer.m4v")!)
}()
lazy var media: [MediaDownloadable] = {
return [testVideo,
SingleMedia(imageURL: URL(string: "https://dummyimage.com/300")!),
SingleMedia(imageURL: URL(string: "https://dummyimage.com/600")!),
testVideo]
}()
@IBAction func onButtonTapped(_ sender: UIButton) {
let vm = FullScreenImageBrowserViewModel(media: media)
let browser = FullScreenImageBrowser(viewModel: vm)
present(browser, animated: true, completion: nil)
}
}
```
## AlamofireImage Support
> By default, `FullScreenImageBrowser` doesn't use any 3rd library, the `SingleImage` uses `URLSession` to fetch image. However it's designed to be compatible with any networking library, one good example is [AlamofireImage](https://github.com/Alamofire/AlamofireImage)
The following code snippet shows an example how to use `AlamofireImage` to seamlessly integrated with `FullScreenImageBrowser`.
```swift
import Foundation
import AlamofireImage
public class FullScreenImage: MediaDownloadable {
public var image: UIImage?
public var imageURL: URL?
public var videoURL: URL?
public var isVideoThumbnail: Bool
public init(imageURL: URL?, isVideoThumbnail: Bool = false, videoURL: URL? = nil) {
self.imageURL = imageURL
self.videoURL = videoURL
self.isVideoThumbnail = isVideoThumbnail
}
public func loadImageWithCompletionHandler(_ completion: @escaping (UIImage?, NSError?) -> Void) {
if let image = image {
completion(image, nil)
return
}
loadImageWithURL(imageURL, completion: completion)
}
// use any network calls you like
public func loadImageWithURL(_ url: URL?, completion: @escaping (_ image: UIImage?, _ error: NSError?) -> Void) {
guard let _url = url else {
completion(nil, NSError(domain: "FullScreenImageBrowserDomain",
code: -2,
userInfo: [ NSLocalizedDescriptionKey: "Image URL not found."]))
return
}
let urlRequest = URLRequest(url: _url)
downloader.download(urlRequest) { [weak self] response in
debugPrint(response.result)
if let remoteImage = response.result.value {
self?.image = remoteImage
completion(remoteImage, nil)
} else {
completion(nil, NSError(domain: "FullScreenImageBrowserDomain",
code: -1,
userInfo: [ NSLocalizedDescriptionKey: "Couldn't load image from remote"]))
}
}
}
}
```
## Folder Structure
```shell
├── animator
│ └── FullScreenImageTransitionAnimator.swift
├── asset
│ └── FullScreenImageBrowser.bundle
│ ├── close.png
│ ├── close@2x.png
│ └── close@3x.png
├── core
│ ├── FullScreenImageBrowser.swift
│ ├── FullScreenImageBrowserViewModel.swift
│ ├── MediaDownloadable.swift
│ ├── MaskImageViewer.swift
│ ├── SingleImageViewer.swift
│ └── ZoomableImageView.swift
└── helper
├── SingleImage.swift
└── UIView+SnapShot.swift
```
| File | Responsiblity |
|--------------------------------------|--------------------------------------------------------------------------------------|
| animator | customised fade in/fade out animations with damping factors |
| asset | customised static image asset for the full screen image/video browser navigation bar |
| core/FullScreenImageBrowser | manager class to be responsible for full screen image/video browser |
| core/FullScreenImageBrowserViewModel | datasource and business logic for full screen image/video browser |
| core/MediaDownloadable | protocol to define images to be able to asynchronously download |
| core/MaskImageViewer | `customised` overlay view for full screen image/video browser |
| core/SingleImageViewer | view controller to be responsible for single image rendering on the full screen |
| core/ZoomableImageView | view to add support for image to zoom, pin, rotate, and animation |
## Demo
<p align="center">
<img src="https://github.com/pigfly/A_J_Full_Screen_Image_Browser/blob/master/assets/demo.gif?raw=true">
</p>
<p align="center">
<img src="https://github.com/pigfly/A_J_Full_Screen_Image_Browser/blob/master/assets/demo2.gif?raw=true">
</p>
<p align="center">
<img src="https://github.com/pigfly/A_J_Full_Screen_Image_Browser/blob/master/assets/demo3.gif?raw=true">
</p>
<p align="center">
<img src="https://github.com/pigfly/A_J_Full_Screen_Image_Browser/blob/master/assets/demo4.gif?raw=true">
</p>
<p align="center">
<img src="https://github.com/pigfly/A_J_Full_Screen_Image_Browser/blob/master/assets/demo5.gif?raw=true">
</p>
<p align="center">
<img src="https://github.com/pigfly/A_J_Full_Screen_Image_Browser/blob/master/assets/demo6.gif?raw=true">
</p>
## HLD
<p align="center">
<img src="https://github.com/pigfly/A_J_Full_Screen_Image_Browser/blob/master/assets/hld.png?raw=true">
</p>
## Credits
A-J-Full-Screen-Image-Browser is owned and maintained by the [Alex Jiang](https://pigfly.github.io). Thanks [iTMan.design](https://itman.design) for providing computational resources.
## License
A-J-Full-Screen-Image-Browser is released under the MIT license.
gitextract_g2d1cdig/ ├── .gitignore ├── A_J_Full_Screen_Image_Browser/ │ ├── AppDelegate.swift │ ├── Assets.xcassets/ │ │ └── AppIcon.appiconset/ │ │ └── Contents.json │ ├── Base.lproj/ │ │ ├── LaunchScreen.storyboard │ │ └── Main.storyboard │ ├── Info.plist │ ├── ViewController.swift │ ├── animator/ │ │ └── FullScreenImageTransitionAnimator.swift │ ├── core/ │ │ ├── FullScreenImageBrowser.swift │ │ ├── FullScreenImageBrowserViewModel.swift │ │ ├── MaskImageViewer.swift │ │ ├── MediaDownloadable.swift │ │ ├── SingleImageViewer.swift │ │ └── ZoomableImageView.swift │ └── helper/ │ ├── SingleMedia.swift │ ├── UIImage+Ex.swift │ └── UIView+SnapShot.swift ├── A_J_Full_Screen_Image_Browser.xcodeproj/ │ ├── project.pbxproj │ └── project.xcworkspace/ │ ├── contents.xcworkspacedata │ └── xcshareddata/ │ └── IDEWorkspaceChecks.plist ├── LICENSE └── README.md
Condensed preview — 22 files, each showing path, character count, and a content snippet. Download the .json file or copy for the full structured content (85K chars).
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About this extraction
This page contains the full source code of the pigfly/A_J_Full_Screen_Image_Browser GitHub repository, extracted and formatted as plain text for AI agents and large language models (LLMs). The extraction includes 22 files (76.6 KB), approximately 20.8k tokens. Use this with OpenClaw, Claude, ChatGPT, Cursor, Windsurf, or any other AI tool that accepts text input. You can copy the full output to your clipboard or download it as a .txt file.
Extracted by GitExtract — free GitHub repo to text converter for AI. Built by Nikandr Surkov.