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Joshua Higgins
2025-06-02 17:49:33 -04:00
parent bbc0606bab
commit 4ef60608cd
16 changed files with 1550 additions and 0 deletions
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6
GIFCollector MessagesExtension/Assets.xcassets/Contents.json Normal file
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{
"info" : {
"author" : "xcode",
"version" : 1
}
}

78
GIFCollector MessagesExtension/Assets.xcassets/iMessage App Icon.stickersiconset/Contents.json Normal file
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{
"images" : [
{
"idiom" : "iphone",
"scale" : "2x",
"size" : "29x29"
},
{
"idiom" : "iphone",
"scale" : "3x",
"size" : "29x29"
},
{
"idiom" : "iphone",
"scale" : "2x",
"size" : "60x45"
},
{
"idiom" : "iphone",
"scale" : "3x",
"size" : "60x45"
},
{
"idiom" : "ipad",
"scale" : "2x",
"size" : "29x29"
},
{
"idiom" : "ipad",
"scale" : "2x",
"size" : "67x50"
},
{
"idiom" : "ipad",
"scale" : "2x",
"size" : "74x55"
},
{
"idiom" : "ios-marketing",
"scale" : "1x",
"size" : "1024x1024"
},
{
"idiom" : "universal",
"platform" : "ios",
"scale" : "2x",
"size" : "27x20"
},
{
"idiom" : "universal",
"platform" : "ios",
"scale" : "3x",
"size" : "27x20"
},
{
"idiom" : "universal",
"platform" : "ios",
"scale" : "2x",
"size" : "32x24"
},
{
"idiom" : "universal",
"platform" : "ios",
"scale" : "3x",
"size" : "32x24"
},
{
"idiom" : "ios-marketing",
"platform" : "ios",
"scale" : "1x",
"size" : "1024x768"
}
],
"info" : {
"author" : "xcode",
"version" : 1
}
}

37
GIFCollector MessagesExtension/Base.lproj/MainInterface.storyboard Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="ObA-dk-sSI">
<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>
<!--Messages View Controller-->
<scene sceneID="7MM-of-jgj">
<objects>
<viewController id="ObA-dk-sSI" customClass="MessagesViewController" customModuleProvider="target" sceneMemberID="viewController">
<view key="view" contentMode="scaleToFill" id="zMn-AG-sqS">
<rect key="frame" x="0.0" y="0.0" width="320" height="528"/>
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
<subviews>
<label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Hello World" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="d1e-fi-ked">
<fontDescription key="fontDescription" type="system" pointSize="17"/>
<color key="textColor" xcode11CocoaTouchSystemColor="labelColor" cocoaTouchSystemColor="darkTextColor"/>
<nil key="highlightedColor"/>
</label>
</subviews>
<color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
<constraints>
<constraint firstAttribute="centerY" secondItem="d1e-fi-ked" secondAttribute="centerY" id="H0s-hz-dDP"/>
<constraint firstAttribute="centerX" secondItem="d1e-fi-ked" secondAttribute="centerX" id="wFy-hW-Bib"/>
</constraints>
<viewLayoutGuide key="safeArea" id="LDy-ih-0nr"/>
</view>
<freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
<size key="freeformSize" width="320" height="528"/>
</viewController>
<placeholder placeholderIdentifier="IBFirstResponder" id="X47-rx-isc" userLabel="First Responder" sceneMemberID="firstResponder"/>
</objects>
</scene>
</scenes>
</document>

107
GIFCollector MessagesExtension/GIFCollectionViewCell.swift Normal file
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import UIKit
class GIFCollectionViewCell: UICollectionViewCell {
private let gifPlayerView: GIFPlayerView = {
let player = GIFPlayerView()
player.layer.cornerRadius = 8
player.clipsToBounds = true
return player
}()
private let loadingIndicator: UIActivityIndicatorView = {
let indicator = UIActivityIndicatorView(style: .medium)
indicator.hidesWhenStopped = true
return indicator
}()
private let placeholderLabel: UILabel = {
let label = UILabel()
label.text = "GIF"
label.textAlignment = .center
label.font = .systemFont(ofSize: 12, weight: .medium)
label.textColor = .systemGray
return label
}()
private var currentTask: URLSessionDataTask?
override init(frame: CGRect) {
super.init(frame: frame)
setupUI()
}
required init?(coder: NSCoder) {
super.init(coder: coder)
setupUI()
}
override func prepareForReuse() {
super.prepareForReuse()
currentTask?.cancel()
currentTask = nil
gifPlayerView.stopAnimating()
placeholderLabel.isHidden = false
loadingIndicator.stopAnimating()
}
private func setupUI() {
contentView.addSubview(gifPlayerView)
contentView.addSubview(loadingIndicator)
contentView.addSubview(placeholderLabel)
gifPlayerView.translatesAutoresizingMaskIntoConstraints = false
loadingIndicator.translatesAutoresizingMaskIntoConstraints = false
placeholderLabel.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
gifPlayerView.topAnchor.constraint(equalTo: contentView.topAnchor),
gifPlayerView.leadingAnchor.constraint(equalTo: contentView.leadingAnchor),
gifPlayerView.trailingAnchor.constraint(equalTo: contentView.trailingAnchor),
gifPlayerView.bottomAnchor.constraint(equalTo: contentView.bottomAnchor),
loadingIndicator.centerXAnchor.constraint(equalTo: contentView.centerXAnchor),
loadingIndicator.centerYAnchor.constraint(equalTo: contentView.centerYAnchor),
placeholderLabel.centerXAnchor.constraint(equalTo: contentView.centerXAnchor),
placeholderLabel.centerYAnchor.constraint(equalTo: contentView.centerYAnchor),
])
contentView.layer.cornerRadius = 8
contentView.layer.borderWidth = 1
contentView.layer.borderColor = UIColor.systemGray4.cgColor
}
func configure(with urlString: String) {
// Cancel any existing task
currentTask?.cancel()
// Reset UI
gifPlayerView.stopAnimating()
placeholderLabel.isHidden = false
loadingIndicator.startAnimating()
guard let url = URL(string: urlString) else {
loadingIndicator.stopAnimating()
return
}
// Load the GIF
currentTask = URLSession.shared.dataTask(with: url) { [weak self] data, _, error in
DispatchQueue.main.async {
guard let self = self else { return }
self.loadingIndicator.stopAnimating()
if let data = data, error == nil {
self.gifPlayerView.loadGIF(from: data)
self.gifPlayerView.startAnimating()
self.placeholderLabel.isHidden = true
} else {
self.placeholderLabel.isHidden = false
}
}
}
currentTask?.resume()
}
}

13
GIFCollector MessagesExtension/Info.plist Normal file
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<?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>NSExtension</key>
<dict>
<key>NSExtensionMainStoryboard</key>
<string>MainInterface</string>
<key>NSExtensionPointIdentifier</key>
<string>com.apple.message-payload-provider</string>
</dict>
</dict>
</plist>

143
GIFCollector MessagesExtension/MessagesViewController.swift Normal file
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//
// MessagesViewController.swift
// GIFCollector MessagesExtension
//
// Created by Joshua Higgins on 6/2/25.
//
import UIKit
import Messages
class MessagesViewController: MSMessagesAppViewController {
private var gifCollectionVC: GIFCollectionViewController?
override func viewDidLoad() {
super.viewDidLoad()
setupChildViewController()
}
private func setupChildViewController() {
let collectionVC = GIFCollectionViewController()
collectionVC.onSelectGIF = { [weak self] gif in
self?.sendGIF(gif)
}
addChild(collectionVC)
collectionVC.view.frame = view.bounds
collectionVC.view.autoresizingMask = [.flexibleWidth, .flexibleHeight]
view.addSubview(collectionVC.view)
collectionVC.didMove(toParent: self)
gifCollectionVC = collectionVC
}
private func sendGIF(_ gif: GIF) {
guard let conversation = activeConversation,
let gifURL = gif.url else { return }
// Show a loading indicator
let loadingAlert = UIAlertController(title: "Preparing GIF", message: "Please wait...", preferredStyle: .alert)
present(loadingAlert, animated: true)
// Download the GIF data
GIFDownloadService.shared.downloadGIF(from: gif.urlString) { data, error in
DispatchQueue.main.async {
// Dismiss the loading indicator
self.dismiss(animated: true) {
if let error = error {
self.showErrorAlert(error: error)
return
}
guard let gifData = data else {
self.showErrorAlert(message: "Failed to download GIF")
return
}
// Create a temporary file URL for the GIF
let tempDirectoryURL = URL(fileURLWithPath: NSTemporaryDirectory(), isDirectory: true)
let tempFileURL = tempDirectoryURL.appendingPathComponent(UUID().uuidString).appendingPathExtension("gif")
do {
// Write GIF data to temporary file
try gifData.write(to: tempFileURL)
// Insert the GIF directly as a standard attachment into the message field
conversation.insertAttachment(tempFileURL, withAlternateFilename: "animated.gif") { error in
if let error = error {
self.showErrorAlert(error: error)
} else {
// Successfully inserted the attachment
self.requestPresentationStyle(.compact)
}
}
} catch {
self.showErrorAlert(error: error)
}
}
}
}
}
private func showErrorAlert(error: Error? = nil, message: String? = nil) {
let errorMessage = message ?? error?.localizedDescription ?? "An unknown error occurred"
let alertController = UIAlertController(title: "Error", message: errorMessage, preferredStyle: .alert)
alertController.addAction(UIAlertAction(title: "OK", style: .default))
present(alertController, animated: true)
}
// MARK: - Conversation Handling
override func willBecomeActive(with conversation: MSConversation) {
// Called when the extension is about to move from the inactive to active state.
// This will happen when the extension is about to present UI.
// Refresh GIFs list when becoming active
gifCollectionVC?.viewWillAppear(true)
// We don't need to check for custom message URLs anymore since
// we're sending standard GIF attachments
}
override func didResignActive(with conversation: MSConversation) {
// Called when the extension is about to move from the active to inactive state.
// This will happen when the user dismisses the extension, changes to a different
// conversation or quits Messages.
// Use this method to release shared resources, save user data, invalidate timers,
// and store enough state information to restore your extension to its current state
// in case it is terminated later.
}
override func didReceive(_ message: MSMessage, conversation: MSConversation) {
// Called when a message arrives that was generated by another instance of this
// extension on a remote device.
// Since we're now sending GIFs as standard attachments rather than
// custom messages, we don't need special handling for received messages
}
override func didStartSending(_ message: MSMessage, conversation: MSConversation) {
// Called when the user taps the send button.
}
override func didCancelSending(_ message: MSMessage, conversation: MSConversation) {
// Called when the user deletes the message without sending it.
// Use this to clean up state related to the deleted message.
}
override func willTransition(to presentationStyle: MSMessagesAppPresentationStyle) {
// Called before the extension transitions to a new presentation style.
// Use this method to prepare for the change in presentation style.
}
override func didTransition(to presentationStyle: MSMessagesAppPresentationStyle) {
// Called after the extension transitions to a new presentation style.
// Use this method to finalize any behaviors associated with the change in presentation style.
}
}

22
GIFCollector MessagesExtension/Models/GIF.swift Normal file
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import Foundation
import UIKit
struct GIF: Codable, Identifiable, Equatable {
let id: UUID
let urlString: String
let createdAt: Date
var url: URL? {
return URL(string: urlString)
}
init(urlString: String) {
self.id = UUID()
self.urlString = urlString
self.createdAt = Date()
}
static func == (lhs: GIF, rhs: GIF) -> Bool {
return lhs.id == rhs.id
}
}

60
GIFCollector MessagesExtension/Services/GIFDownloadService.swift Normal file
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import Foundation
import UIKit
class GIFDownloadService {
static let shared = GIFDownloadService()
private let cache = NSCache<NSString, NSData>()
private var activeTasks: [URL: URLSessionDataTask] = [:]
private init() {
cache.totalCostLimit = 100 * 1024 * 1024 // 100 MB cache limit
}
func downloadGIF(from urlString: String, completion: @escaping (Data?, Error?) -> Void) {
guard let url = URL(string: urlString) else {
completion(nil, NSError(domain: "GIFDownloadService", code: 1, userInfo: [NSLocalizedDescriptionKey: "Invalid URL"]))
return
}
// Check if the GIF is already cached
let cacheKey = url.absoluteString as NSString
if let cachedData = cache.object(forKey: cacheKey) {
completion(cachedData as Data, nil)
return
}
// Cancel any existing tasks for this URL
activeTasks[url]?.cancel()
// Create a new download task
let task = URLSession.shared.dataTask(with: url) { [weak self] data, response, error in
defer {
self?.activeTasks.removeValue(forKey: url)
}
guard let self = self, error == nil, let data = data else {
DispatchQueue.main.async {
completion(nil, error ?? NSError(domain: "GIFDownloadService", code: 2, userInfo: [NSLocalizedDescriptionKey: "Failed to download GIF"]))
}
return
}
// Cache the downloaded data
self.cache.setObject(data as NSData, forKey: cacheKey, cost: data.count)
DispatchQueue.main.async {
completion(data, nil)
}
}
// Store and start the task
activeTasks[url] = task
task.resume()
}
func cancelAllTasks() {
activeTasks.values.forEach { $0.cancel() }
activeTasks.removeAll()
}
}

49
GIFCollector MessagesExtension/Services/GIFStorageService.swift Normal file
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import Foundation
class GIFStorageService {
static let shared = GIFStorageService()
private let userDefaults = UserDefaults(suiteName: "group.gifcollector")
private let savedGIFsKey = "savedGIFs"
private init() {
// Make sure the shared UserDefaults exists
if userDefaults == nil {
print("Error: Could not create UserDefaults with app group")
}
}
func saveGIF(_ gif: GIF) {
var savedGIFs = fetchGIFs()
// Don't save duplicate URLs
if !savedGIFs.contains(where: { $0.urlString == gif.urlString }) {
savedGIFs.append(gif)
saveToUserDefaults(gifs: savedGIFs)
}
}
func fetchGIFs() -> [GIF] {
guard let data = userDefaults?.data(forKey: savedGIFsKey),
let gifs = try? JSONDecoder().decode([GIF].self, from: data) else {
return []
}
return gifs.sorted(by: { $0.createdAt > $1.createdAt })
}
func deleteGIF(with id: UUID) {
var savedGIFs = fetchGIFs()
savedGIFs.removeAll(where: { $0.id == id })
saveToUserDefaults(gifs: savedGIFs)
}
func clearAllGIFs() {
saveToUserDefaults(gifs: [])
}
private func saveToUserDefaults(gifs: [GIF]) {
guard let data = try? JSONEncoder().encode(gifs) else { return }
userDefaults?.set(data, forKey: savedGIFsKey)
}
}

186
GIFCollector MessagesExtension/Views/AddGIFViewController.swift Normal file
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import UIKit
class AddGIFViewController: UIViewController {
private let titleLabel: UILabel = {
let label = UILabel()
label.text = "Add New GIF"
label.font = .systemFont(ofSize: 18, weight: .bold)
label.textAlignment = .center
return label
}()
private let urlTextField: UITextField = {
let textField = UITextField()
textField.placeholder = "Enter GIF URL"
textField.borderStyle = .roundedRect
textField.autocorrectionType = .no
textField.autocapitalizationType = .none
textField.keyboardType = .URL
textField.returnKeyType = .next
textField.clearButtonMode = .whileEditing
return textField
}()
private let previewGIFPlayer: GIFPlayerView = {
let player = GIFPlayerView()
player.clipsToBounds = true
player.layer.cornerRadius = 8
player.backgroundColor = .systemGray6
return player
}()
private let loadingIndicator: UIActivityIndicatorView = {
let indicator = UIActivityIndicatorView(style: .medium)
indicator.hidesWhenStopped = true
return indicator
}()
private let saveButton: UIButton = {
let button = UIButton(type: .system)
button.setTitle("Save", for: .normal)
button.titleLabel?.font = .systemFont(ofSize: 16, weight: .medium)
button.backgroundColor = .systemBlue
button.setTitleColor(.white, for: .normal)
button.layer.cornerRadius = 8
button.isEnabled = false
return button
}()
private let cancelButton: UIButton = {
let button = UIButton(type: .system)
button.setTitle("Cancel", for: .normal)
button.titleLabel?.font = .systemFont(ofSize: 16, weight: .medium)
return button
}()
private var currentTask: URLSessionDataTask?
var onSaveGIF: ((GIF) -> Void)?
var onCancel: (() -> Void)?
override func viewDidLoad() {
super.viewDidLoad()
setupUI()
setupActions()
}
private func setupUI() {
view.backgroundColor = .systemBackground
view.addSubview(titleLabel)
view.addSubview(urlTextField)
view.addSubview(previewGIFPlayer)
view.addSubview(loadingIndicator)
view.addSubview(saveButton)
view.addSubview(cancelButton)
titleLabel.translatesAutoresizingMaskIntoConstraints = false
urlTextField.translatesAutoresizingMaskIntoConstraints = false
previewGIFPlayer.translatesAutoresizingMaskIntoConstraints = false
loadingIndicator.translatesAutoresizingMaskIntoConstraints = false
saveButton.translatesAutoresizingMaskIntoConstraints = false
cancelButton.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
titleLabel.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor, constant: 16),
titleLabel.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 16),
titleLabel.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -16),
urlTextField.topAnchor.constraint(equalTo: titleLabel.bottomAnchor, constant: 16),
urlTextField.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 16),
urlTextField.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -16),
previewGIFPlayer.topAnchor.constraint(equalTo: urlTextField.bottomAnchor, constant: 16),
previewGIFPlayer.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 16),
previewGIFPlayer.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -16),
previewGIFPlayer.heightAnchor.constraint(equalToConstant: 150),
loadingIndicator.centerXAnchor.constraint(equalTo: previewGIFPlayer.centerXAnchor),
loadingIndicator.centerYAnchor.constraint(equalTo: previewGIFPlayer.centerYAnchor),
saveButton.topAnchor.constraint(equalTo: previewGIFPlayer.bottomAnchor, constant: 24),
saveButton.leadingAnchor.constraint(equalTo: view.centerXAnchor, constant: 8),
saveButton.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -16),
saveButton.heightAnchor.constraint(equalToConstant: 44),
cancelButton.topAnchor.constraint(equalTo: previewGIFPlayer.bottomAnchor, constant: 24),
cancelButton.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 16),
cancelButton.trailingAnchor.constraint(equalTo: view.centerXAnchor, constant: -8),
cancelButton.heightAnchor.constraint(equalToConstant: 44),
])
}
private func setupActions() {
urlTextField.delegate = self
urlTextField.addTarget(self, action: #selector(urlTextDidChange), for: .editingChanged)
saveButton.addTarget(self, action: #selector(saveButtonTapped), for: .touchUpInside)
cancelButton.addTarget(self, action: #selector(cancelButtonTapped), for: .touchUpInside)
}
@objc private func urlTextDidChange() {
guard let urlString = urlTextField.text, !urlString.isEmpty else {
previewGIFPlayer.stopAnimating()
saveButton.isEnabled = false
return
}
loadGIFPreview(from: urlString)
}
private func loadGIFPreview(from urlString: String) {
// Cancel any existing task
currentTask?.cancel()
guard let url = URL(string: urlString) else {
saveButton.isEnabled = false
return
}
loadingIndicator.startAnimating()
previewGIFPlayer.stopAnimating()
currentTask = URLSession.shared.dataTask(with: url) { [weak self] data, _, error in
DispatchQueue.main.async {
guard let self = self else { return }
self.loadingIndicator.stopAnimating()
if let data = data, error == nil {
self.previewGIFPlayer.loadGIF(from: data)
self.previewGIFPlayer.startAnimating()
self.saveButton.isEnabled = true
} else {
self.previewGIFPlayer.stopAnimating()
self.saveButton.isEnabled = false
}
}
}
currentTask?.resume()
}
@objc private func saveButtonTapped() {
guard let urlString = urlTextField.text, !urlString.isEmpty else { return }
let gif = GIF(urlString: urlString)
onSaveGIF?(gif)
dismiss(animated: true)
}
@objc private func cancelButtonTapped() {
onCancel?()
dismiss(animated: true)
}
}
extension AddGIFViewController: UITextFieldDelegate {
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
textField.resignFirstResponder()
return true
}
}

136
GIFCollector MessagesExtension/Views/GIFCollectionViewController.swift Normal file
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import UIKit
import Messages
class GIFCollectionViewController: UIViewController {
private var collectionView: UICollectionView!
private let addButton = UIButton(type: .system)
private let emptyStateLabel = UILabel()
private let reuseIdentifier = "GIFCell"
private var gifs: [GIF] = []
var onSelectGIF: ((GIF) -> Void)?
override func viewDidLoad() {
super.viewDidLoad()
setupCollectionView()
setupUI()
loadGIFs()
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
loadGIFs()
}
private func setupCollectionView() {
let layout = UICollectionViewFlowLayout()
layout.scrollDirection = .vertical
layout.minimumLineSpacing = 10
layout.minimumInteritemSpacing = 10
// Calculate cell size to fit 2 cells per row with spacing
let cellWidth = (view.bounds.width - 40) / 2 // 40 = padding (10 + 10) + spacing between cells (10) + extra margins (10)
layout.itemSize = CGSize(width: cellWidth, height: cellWidth)
layout.sectionInset = UIEdgeInsets(top: 10, left: 10, bottom: 10, right: 10)
collectionView = UICollectionView(frame: .zero, collectionViewLayout: layout)
collectionView.backgroundColor = .systemBackground
collectionView.delegate = self
collectionView.dataSource = self
collectionView.register(GIFCollectionViewCell.self, forCellWithReuseIdentifier: reuseIdentifier)
collectionView.alwaysBounceVertical = true
}
private func setupUI() {
view.backgroundColor = .systemBackground
// Add Collection View
view.addSubview(collectionView)
collectionView.translatesAutoresizingMaskIntoConstraints = false
// Setup Add Button
addButton.setImage(UIImage(systemName: "plus.circle.fill"), for: .normal)
addButton.tintColor = .systemBlue
addButton.contentHorizontalAlignment = .fill
addButton.contentVerticalAlignment = .fill
addButton.addTarget(self, action: #selector(addButtonTapped), for: .touchUpInside)
view.addSubview(addButton)
addButton.translatesAutoresizingMaskIntoConstraints = false
// Setup Empty State Label
emptyStateLabel.text = "No GIFs saved yet. Add your first GIF!"
emptyStateLabel.textAlignment = .center
emptyStateLabel.textColor = .systemGray
emptyStateLabel.numberOfLines = 0
view.addSubview(emptyStateLabel)
emptyStateLabel.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
collectionView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor),
collectionView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
collectionView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
collectionView.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor),
addButton.widthAnchor.constraint(equalToConstant: 44),
addButton.heightAnchor.constraint(equalToConstant: 44),
addButton.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -16),
addButton.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor, constant: -16),
emptyStateLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor),
emptyStateLabel.centerYAnchor.constraint(equalTo: view.centerYAnchor),
emptyStateLabel.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 32),
emptyStateLabel.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -32)
])
updateEmptyState()
}
private func loadGIFs() {
gifs = GIFStorageService.shared.fetchGIFs()
collectionView.reloadData()
updateEmptyState()
}
private func updateEmptyState() {
emptyStateLabel.isHidden = !gifs.isEmpty
}
@objc private func addButtonTapped() {
let addGIFVC = AddGIFViewController()
addGIFVC.onSaveGIF = { [weak self] gif in
GIFStorageService.shared.saveGIF(gif)
self?.loadGIFs()
}
addGIFVC.onCancel = { [weak self] in
self?.dismiss(animated: true)
}
let navController = UINavigationController(rootViewController: addGIFVC)
navController.modalPresentationStyle = .formSheet
present(navController, animated: true)
}
}
extension GIFCollectionViewController: UICollectionViewDelegate, UICollectionViewDataSource {
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return gifs.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
guard let cell = collectionView.dequeueReusableCell(withReuseIdentifier: reuseIdentifier, for: indexPath) as? GIFCollectionViewCell else {
return UICollectionViewCell()
}
let gif = gifs[indexPath.item]
cell.configure(with: gif.urlString)
return cell
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let gif = gifs[indexPath.item]
onSelectGIF?(gif)
}
}

179
GIFCollector MessagesExtension/Views/GIFPlayerView.swift Normal file
View File

@@ -0,0 +1,179 @@
import UIKit
import ImageIO
class GIFPlayerView: UIView {
private var imageView: UIImageView!
private var displayLink: CADisplayLink?
private var imageSource: CGImageSource?
private var frameCount: Int = 0
private var currentFrameIndex: Int = 0
private var frameDurations: [TimeInterval] = []
private var totalDuration: TimeInterval = 0
private var currentTime: TimeInterval = 0
private var previousTimestamp: TimeInterval = 0
// Default configuration
private var loopCount: Int = 0 // 0 means loop forever
private var currentLoopCount: Int = 0
// Public properties
var isPlaying: Bool = false
override init(frame: CGRect) {
super.init(frame: frame)
commonInit()
}
required init?(coder: NSCoder) {
super.init(coder: coder)
commonInit()
}
deinit {
stopAnimating()
}
private func commonInit() {
imageView = UIImageView()
imageView.contentMode = .scaleAspectFit
imageView.clipsToBounds = true
addSubview(imageView)
imageView.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
imageView.topAnchor.constraint(equalTo: topAnchor),
imageView.leadingAnchor.constraint(equalTo: leadingAnchor),
imageView.trailingAnchor.constraint(equalTo: trailingAnchor),
imageView.bottomAnchor.constraint(equalTo: bottomAnchor)
])
}
// MARK: - Public Methods
func loadGIF(from data: Data) {
stopAnimating()
guard let source = CGImageSourceCreateWithData(data as CFData, nil) else { return }
imageSource = source
// Get frame count
frameCount = CGImageSourceGetCount(source)
guard frameCount > 0 else { return }
// Calculate frame durations
frameDurations.removeAll()
totalDuration = 0
for i in 0..<frameCount {
let duration = frameDurationAtIndex(i)
frameDurations.append(duration)
totalDuration += duration
}
// Reset state
currentFrameIndex = 0
currentTime = 0
// Display first frame
if let image = imageAtIndex(0) {
imageView.image = image
}
}
func startAnimating() {
guard !isPlaying, frameCount > 1 else { return }
isPlaying = true
previousTimestamp = CACurrentMediaTime()
displayLink = CADisplayLink(target: self, selector: #selector(updateFrame))
displayLink?.add(to: .main, forMode: .common)
}
func stopAnimating() {
isPlaying = false
displayLink?.invalidate()
displayLink = nil
}
func loadGIF(from url: URL, completion: @escaping (Bool) -> Void) {
URLSession.shared.dataTask(with: url) { [weak self] data, _, error in
guard let self = self, let data = data, error == nil else {
DispatchQueue.main.async {
completion(false)
}
return
}
DispatchQueue.main.async {
self.loadGIF(from: data)
completion(true)
}
}.resume()
}
// MARK: - Private Methods
@objc private func updateFrame(displayLink: CADisplayLink) {
let timestamp = CACurrentMediaTime()
let elapsed = timestamp - previousTimestamp
previousTimestamp = timestamp
currentTime += elapsed
// Check if we need to show the next frame
while currentTime >= frameDurations[currentFrameIndex], frameCount > 0 {
currentTime -= frameDurations[currentFrameIndex]
currentFrameIndex = (currentFrameIndex + 1) % frameCount
// Handle loop count
if currentFrameIndex == 0 && loopCount > 0 {
currentLoopCount += 1
if currentLoopCount >= loopCount {
stopAnimating()
break
}
}
// Update the image
if let image = imageAtIndex(currentFrameIndex) {
imageView.image = image
}
}
}
private func imageAtIndex(_ index: Int) -> UIImage? {
guard let source = imageSource, index < frameCount,
let cgImage = CGImageSourceCreateImageAtIndex(source, index, nil) else {
return nil
}
return UIImage(cgImage: cgImage)
}
private func frameDurationAtIndex(_ index: Int) -> TimeInterval {
guard let source = imageSource, index < frameCount else {
return 0.1 // Default duration
}
// Get frame properties
guard let properties = CGImageSourceCopyPropertiesAtIndex(source, index, nil) as? [String: Any],
let gifProperties = properties[kCGImagePropertyGIFDictionary as String] as? [String: Any] else {
return 0.1 // Default duration
}
// Get delay time
var delayTime: TimeInterval = 0.1 // Default duration
if let unclampedDelay = gifProperties[kCGImagePropertyGIFUnclampedDelayTime as String] as? TimeInterval,
unclampedDelay > 0 {
delayTime = unclampedDelay
} else if let delay = gifProperties[kCGImagePropertyGIFDelayTime as String] as? TimeInterval,
delay > 0 {
delayTime = delay
}
// Clamp to minimum delay (ensures reasonable frame rate)
return max(delayTime, 0.02)
}
}

486
GIFCollector.xcodeproj/project.pbxproj Normal file
View File

@@ -0,0 +1,486 @@
// !$*UTF8*$!
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buildConfigurations = (
1B3192932DEDCF87007850B9 /* Debug */,
1B3192942DEDCF87007850B9 /* Release */,
);
defaultConfigurationIsVisible = 0;
defaultConfigurationName = Release;
};
1B3192982DEDCF87007850B9 /* Build configuration list for PBXNativeTarget "GIFCollector" */ = {
isa = XCConfigurationList;
buildConfigurations = (
1B3192992DEDCF87007850B9 /* Debug */,
1B31929A2DEDCF87007850B9 /* Release */,
);
defaultConfigurationIsVisible = 0;
defaultConfigurationName = Release;
};
/* End XCConfigurationList section */
};
rootObject = 1B3192722DEDCF83007850B9 /* Project object */;
}

7
GIFCollector.xcodeproj/project.xcworkspace/contents.xcworkspacedata generated Normal file
View File

@@ -0,0 +1,7 @@
<?xml version="1.0" encoding="UTF-8"?>
<Workspace
version = "1.0">
<FileRef
location = "self:">
</FileRef>
</Workspace>

35
GIFCollector/Assets.xcassets/AppIcon.appiconset/Contents.json Normal file
View File

@@ -0,0 +1,35 @@
{
"images" : [
{
"idiom" : "universal",
"platform" : "ios",
"size" : "1024x1024"
},
{
"appearances" : [
{
"appearance" : "luminosity",
"value" : "dark"
}
],
"idiom" : "universal",
"platform" : "ios",
"size" : "1024x1024"
},
{
"appearances" : [
{
"appearance" : "luminosity",
"value" : "tinted"
}
],
"idiom" : "universal",
"platform" : "ios",
"size" : "1024x1024"
}
],
"info" : {
"author" : "xcode",
"version" : 1
}
}

6
GIFCollector/Assets.xcassets/Contents.json Normal file
View File

@@ -0,0 +1,6 @@
{
"info" : {
"author" : "xcode",
"version" : 1
}
}