![\"Rubber](\"mallet.png\"\n)
\n\nHello World
\n \n" }, { "title": "Adding declarativeNetRequest permission", "language": "json", "startTimeSeconds": 498, "code": "{\n \"manifest_version\": 3,\n \"name\": \"Shiny OnTrack\",\n \"description\": \"Stay on track while you browse the web\",\n \"version\": 1.0,\n\n \"icons\": {\n \"512\": \"images/icon.svg\"\n },\n\n \"options_ui\": {\n \"page\": \"options.html\"\n },\n\n \"permissions\": [ \"declarativeNetRequest\" ]\n}" }, { "title": "Blocking network requests", "language": "javascript", "startTimeSeconds": 502, "code": "// block rule\n{\n id: 1,\n priority: 1,\n action: {\n type: \"block\"\n },\n condition: {\n urlFilter: \"||webkit.org\",\n resourceTypes: [ \"main_frame\" ]\n }\n}" }, { "title": "Modifying network requests", "language": "json", "startTimeSeconds": 521, "code": "{\n \"manifest_version\": 3,\n \"name\": \"Shiny OnTrack\",\n \"description\": \"Stay on track while you browse the web\",\n \"version\": 1.0,\n\n \"icons\": {\n \"512\": \"images/icon.svg\"\n },\n\n \"options_ui\": {\n \"page\": \"options.html\"\n },\n\n \"permissions\": [ \"declarativeNetRequest\" ],\n\n \"declarativeNetRequest\": {\n \"rule_resources\": [\n {\n \"id\": \"ruleset_id\",\n \"enabled\": true,\n \"path\": \"rules.json\"\n }\n ]\n }\n}" }, { "title": "Updating dynamic rules", "language": "javascript", "startTimeSeconds": 530, "code": "await browser.declarativeNetRequest.updateDynamicRules({\n addRules: [ rule ]\n})" }, { "title": "Wiring up the static declarativeNetRequest rules", "language": "json", "startTimeSeconds": 559, "code": "{\n \"manifest_version\": 3,\n \"name\": \"Shiny OnTrack\",\n \"description\": \"Stay on track while you browse the web\",\n \"version\": 1.0,\n\n \"icons\": {\n \"512\": \"images/icon.svg\"\n },\n\n \"options_ui\": {\n \"page\": \"options.html\"\n },\n\n \"permissions\": [ \n \"declarativeNetRequest\" \n ]\n}" }, { "title": "Adding block rules dynamically", "language": "javascript", "startTimeSeconds": 580, "code": "// A helper function to map the host to the declarative net request rule ID.\nexport function hostToRuleID(host) {\n\tlet hash = 0;\n\tfor (let i = 0; i < host.length; i++) {\n\t\thash = ((hash << 5) + hash) + host.charCodeAt(i);\n\t\thash |= 0;\n\t}\n\treturn Math.abs(hash) || 1;\n}\n\nfunction createBlockRule(host) {\n\treturn {\n\t\tid: hostToRuleID(host),\n\t\tpriority: 1,\n\t\taction: {\n\t\t\ttype: \"block\"\n\t\t},\n\t\tcondition: {\n\t\t\turlFilter: `||${host}`,\n\t\t\tresourceTypes: [\"main_frame\"]\n\t\t}\n\t}\n}\n\nexport async function createRules(hosts) {\n\ttry {\n\t\tawait browser.declarativeNetRequest.updateDynamicRules({\n\t\t\taddRules: hosts.map(createBlockRule)\n\t\t})\n\t} catch {\n\t\tconsole.log(\"Failed to create declarative net request rules\")\n\t}\n}" }, { "title": "Handling adding hosts to the settings", "language": "javascript", "startTimeSeconds": 610, "code": "import { createRules, removeAllRules, removeRule } from './rules.js'\n\nexport async function addHost(host, blockingMode) {\n if (!host)\n return\n\n if (blockingMode === \"full\")\n await createRules([host])\n}" }, { "title": "Redirecting network requests", "language": "javascript", "startTimeSeconds": 648, "code": "{\n id: 1,\n priority: 1,\n action: {\n type: \"redirect\",\n redirect: {\n extensionPath: \"/blocked.html\"\n }\n },\n condition: {\n urlFilter: \"||webkit.org\",\n resourceTypes: [ \"main_frame\" ]\n }\n}" }, { "title": "Declaring optional host permissions", "language": "json", "startTimeSeconds": 677, "code": "{\n \"manifest_version\": 3,\n \"name\": \"Shiny OnTrack\",\n \"description\": \"Stay on track while you browse the web\",\n \"version\": 1.0,\n\n \"icons\": {\n \"512\": \"images/icon.svg\"\n },\n\n \"options_ui\": {\n \"page\": \"options.html\"\n },\n\n \"permissions\": [ \"declarativeNetRequestWithHostAccess\" ],\n \"optional_host_permissions\": [ \"https://webkit.org/*\" ]\n\n}" }, { "title": "Declaring optional host permissions for all sites", "language": "json", "startTimeSeconds": 714, "code": "{\n \"manifest_version\": 3,\n \"name\": \"Shiny OnTrack\",\n \"description\": \"Stay on track while you browse the web\",\n \"version\": 1.0,\n\n \"icons\": {\n \"512\": \"images/icon.svg\"\n },\n\n \"options_ui\": {\n \"page\": \"options.html\"\n },\n\n \"permissions\": [ \"declarativeNetRequestWithHostAccess\" ],\n \"optional_host_permissions\": [ \"*://*/*\" ]\n\n}" }, { "title": "Add the redirect rule", "language": "javascript", "startTimeSeconds": 792, "code": "// A helper function to map the host to the declarative net request rule ID.\nexport function hostToRuleID(host) {\n\tlet hash = 0;\n\tfor (let i = 0; i < host.length; i++) {\n\t\thash = ((hash << 5) + hash) + host.charCodeAt(i);\n\t\thash |= 0;\n\t}\n\treturn Math.abs(hash) || 1;\n}\n\nfunction createBlockRule(host) {\n\treturn {\n\t\tid: hostToRuleID(host),\n\t\tpriority: 1,\n\t\taction: {\n\t\t\ttype: \"block\"\n\t\t},\n\t\tcondition: {\n\t\t\turlFilter: `||${host}`,\n\t\t\tresourceTypes: [\"main_frame\"]\n\t\t}\n\t}\n}\n\nfunction createRedirectRule(host) {\n\treturn {\n\t\tid: hostToRuleID(host),\n\t\tpriority: 1,\n\t\taction: {\n\t\t\ttype: \"redirect\",\n\t\t\tredirect: { extensionPath: \"/blocked.html\" }\n\t\t},\n\t\tcondition: {\n\t\t\turlFilter: `||${host}`,\n\t\t\tresourceTypes: [\"main_frame\"]\n\t\t}\n\t}\n}\n\nexport async function createRules(hosts) {\n\ttry {\n\t\tawait browser.declarativeNetRequest.updateDynamicRules({\n\t\t\taddRules: hosts.map(createRedirectRule)\n\t\t})\n\t} catch {\n\t\tconsole.log(\"Failed to create declarative net request rules\")\n\t}\n}" }, { "title": "Dynamically ask for host permissions", "language": "javascript", "startTimeSeconds": 822, "code": "import { createRules, removeAllRules, removeRule } from './rules.js'\n\nexport async function addHost(host, blockingMode) {\n if (!host)\n return\n\n const granted = await browser.permissions.request({\n origins: [`*://${host}/*`, `*://*.${host}/*`]\n })\n if (!granted)\n return\n\n if (blockingMode === \"full\")\n await createRules([host])\n}" }, { "title": "Defining content scripts", "language": "json", "startTimeSeconds": 895, "code": "{\n \"manifest_version\": 3,\n \"name\": \"Shiny OnTrack\",\n \"description\": \"Stay on track while you browse the web\",\n \"version\": 1.0,\n\n \"icons\": {\n \"512\": \"images/icon.svg\"\n },\n\n \"options_ui\": {\n \"page\": \"options.html\"\n },\n\n \"permissions\": [ \"declarativeNetRequestWithHostAccess\" ],\n \"optional_host_permissions\": [ \"*://*/*\" ],\n\n \"content_scripts\": [\n {\n \"js\": [ \"content.js\" ],\n \"css\": [ \"content.css\" ],\n \"matches\": [ \"*://*.webkit.org/*\" ]\n }\n ]\n}" }, { "title": "Dynamically registering content scripts", "language": "javascript", "startTimeSeconds": 913, "code": "let script = {\n id: \"id\",\n js: [ \"content.js\" ],\n css: [ \"content.css\" ],\n matches: [ \"*://*.webkit.org/*\" ],\n persistAcrossSessions: true\n}\n\nawait browser.scripting.registerContentScripts([ script ])" }, { "title": "Adding the scripting permission", "language": "json", "startTimeSeconds": 931, "code": "{\n \"manifest_version\": 3,\n \"name\": \"Shiny OnTrack\",\n \"description\": \"Stay on track while you browse the web\",\n \"version\": 1.0,\n\n \"icons\": {\n \"512\": \"images/icon.svg\"\n },\n\n \"options_page\": \"options.html\",\n\n \"permissions\": [\n \"declarativeNetRequestWithHostAccess\",\n \"scripting\"\n ],\n\n \"optional_host_permissions\": [ \"*://*/*\" ]\n}" }, { "title": "Registering content scripts", "language": "javascript", "startTimeSeconds": 941, "code": "// scripting.js\n\nfunction contentScript(host) {\n return {\n id: `cs-${host}`,\n js: [ \"content.js\" ],\n css: [ \"content.css\" ],\n matches: [ `*://${host}/*`, `*://*.${host}/*` ],\n persistAcrossSessions: true\n }\n}\n\nexport function registerScripts(hosts) {\n const scripts = hosts.map(contentScript)\n try {\n await browser.scripting.registerContentScripts(scripts)\n } catch {\n console.log(\"Failed to register content scripts\")\n }\n}" }, { "title": "Adding a host", "language": "javascript", "startTimeSeconds": 962, "code": "// host.js\n\nexport async function addHost(host, blockMode) {\n if (!host)\n return\n\n const granted = await browser.permissions.request({\n origins: [`*://${host}/*`, `*://*.${host}/*`]\n })\n\n if (!granted)\n return\n\n if (blockingMode === \"full\")\n await createRules([ host ])\n\n await registerScripts([ host ])\n}" }, { "title": "Web extensions storage APIs", "language": "javascript", "startTimeSeconds": 1026, "code": "await browser.session.storage.set({\n key: value\n})\n\nawait browser.local.storage.set({\n key: value\n})" }, { "title": "Adding storage permission to the web extension manifest.json", "language": "json", "startTimeSeconds": 1041, "code": "{\n \"manifest_version\": 3,\n \"name\": \"Shiny OnTrack\",\n \"description\": \"Stay on track while you browse the web\",\n \"version\": 1.0,\n\n \"icons\": {\n \"512\": \"images/icon.svg\"\n },\n\n \"options_page\": \"options.html\",\n\n \"permissions\": [\n \"declarativeNetRequestWithHostAccess\",\n \"scripting\",\n \"storage\"\n ],\n\n \"optional_host_permissions\": [ \"*://*/*\" ]\n}" }, { "title": "Saving data with storage", "language": "javascript", "startTimeSeconds": 1050, "code": "// storage.js\n\nexport async function updateHosts(hosts) {\n await browser.storage.local.set({ hosts: hosts })\n}\n\nexport async function getHosts() {\n const { hosts = [] } = await browser.storage.local.get(\"hosts\")\n return hosts\n}\n\nexport async function saveBlockMode(mode) {\n await browser.storage.local.set({ blockMode: mode })\n}\n\nexport async function getBlockMode() {\n const { blockMode = \"full\" } = await browser.storage.local.get(\"blockMode\")\n return blockMode\n}" }, { "title": "Persisting hosts to storage", "language": "javascript", "startTimeSeconds": 1061, "code": "// host.js\n\nexport async function addHost(host, blockMode) {\n if (!host)\n return\n\n const granted = await browser.permissions.request({\n origins: [`*://${host}/*`, `*://*.${host}/*`]\n })\n\n if (!granted)\n return\n\n if (blockingMode === \"full\")\n await createRules([ host ])\n\n await registerScripts([ host ])\n\n let existingHosts = await getHosts()\n let updatedHosts = [ ...existingHosts, host ]\n await updateHosts(updatedHosts)\n}" }, { "title": "Reading from storage", "language": "javascript", "startTimeSeconds": 1071, "code": "// options.js\n\nlet existingHosts = await getHosts()\nlet blockMode = await getBlockMode()\n\ndisplayBlocklist(existingHosts)" }, { "title": "Switching block modes", "language": "javascript", "startTimeSeconds": 1080, "code": "// host.js\n\nexport async function userDidSwitchMode(blockMode) {\n await saveBlockMode(blockMode)\n\n if (blockMode === \"full\") {\n let hosts = await getHosts()\n await createRules(hosts)\n } else\n await removeAllRules()\n}" }, { "title": "Adding a background script", "language": "json", "startTimeSeconds": 1141, "code": "{\n \"manifest_version\": 3,\n \"name\": \"Shiny OnTrack\",\n \"description\": \"Stay on track while you browse the web\",\n \"version\": 1.0,\n\n \"icons\": {\n \"512\": \"images/icon.svg\"\n },\n\n \"options_page\": \"options.html\",\n\n \"permissions\": [\n \"declarativeNetRequestWithHostAccess\",\n \"scripting\",\n \"storage\"\n ],\n\n \"optional_host_permissions\": [ \"*://*/*\" ],\n\n \"background\": {\n \"scripts\": [ \"background.js\" ],\n \"type\": \"module\"\n }\n}" }, { "title": "Background script", "language": "javascript", "startTimeSeconds": 1179, "code": "// background.js\n\nimport { registerScripts } from \"./utilities/scripting.js\"\nimport { getHosts } from \"./utilities/storage.js\"\n\nbrowser.runtime.onInstalled.addListener(async (details) => {\n if (details.reason !== \"update\")\n return\n\n const hosts = await getHosts()\n await registerScripts(hosts)\n})" }, { "title": "Package your web extension into an app for Xcode", "language": "bash", "startTimeSeconds": 1369, "code": "xcrun safari-web-extension-packager --copy-resources /path/to/ShinyOnTrack" }, { "title": "Adding the nativeMessaging permission", "language": "json", "startTimeSeconds": 1412, "code": "{\n \"manifest_version\": 3,\n \"name\": \"Shiny OnTrack\",\n \"description\": \"Stay on track while you browse the web\",\n \"version\": 1.0,\n\n \"icons\": {\n \"512\": \"images/icon.svg\"\n },\n\n \"options_page\": \"options.html\",\n\n \"permissions\": [\n \"declarativeNetRequestWithHostAccess\",\n \"scripting\",\n \"storage\",\n \"nativeMessaging\"\n ],\n\n \"optional_host_permissions\": [ \"*://*/*\" ],\n\n \"background\": {\n \"scripts\": [ \"background.js\" ],\n \"type\": \"module\"\n }\n}" }, { "title": "Sending a native message", "language": "javascript", "startTimeSeconds": 1420, "code": "// background.js\n\nimport { registerScripts } from \"./utilities/scripting.js\"\nimport { getHosts } from \"./utilities/storage.js\"\n\nbrowser.runtime.onInstalled.addListener(async (details) => {\n if (details.reason !== \"update\")\n return\n\n const hosts = await getHosts()\n await registerScripts(hosts)\n})\n\nexport async function requestBioAuth() {\n const message = { message: \"requestBioAuth\" }\n const response = await browser.runtime.sendNativeMessage(message)\n return response?.success\n}" }, { "title": "Handling native messages", "language": "swift", "startTimeSeconds": 1435, "code": "// SafariWebExtensionHandler.swift\n\nimport LocalAuthentication\n\nclass SafariWebExtensionHandler: NSObject, NSExtensionRequestHandling {\n func beginRequest(with context: NSExtensionContext) {\n let request = context.inputItems.first as? NSExtensionItem\n let message = request?.userInfo?[SFExtensionMessageKey] as? [String: Any]\n\n if message?[\"message\"] as? String == \"requestBioAuth\" {\n let lAContext = LAContext()\n Task {\n do {\n let success = try await lAContext.evaluatePolicy(\n .deviceOwnerAuthenticationWithBiometrics,\n localizedReason: \"Authenticate to change blocked sites\"\n )\n self.reply(context: context, success: success)\n } catch {\n self.reply(context: context, success: false)\n }\n }\n }\n }\n}" }, { "title": "Replying to a native message", "language": "swift", "startTimeSeconds": 1465, "code": "// SafariWebExtensionHandler.swift\n\nimport LocalAuthentication\n\nclass SafariWebExtensionHandler: NSObject, NSExtensionRequestHandling {\n func beginRequest(with context: NSExtensionContext) {\n let request = context.inputItems.first as? NSExtensionItem\n let message = request?.userInfo?[SFExtensionMessageKey] as? [String: Any]\n\n if message?[\"message\"] as? String == \"requestBioAuth\" {\n let lAContext = LAContext()\n Task {\n do {\n let success = try await lAContext.evaluatePolicy(\n .deviceOwnerAuthenticationWithBiometrics,\n localizedReason: \"Authenticate to change blocked sites\"\n )\n self.reply(context: context, success: success)\n } catch {\n self.reply(context: context, success: false)\n }\n }\n }\n }\n\n private func reply(context: NSExtensionContext, success: Bool) {\n let response = NSExtensionItem()\n response.userInfo = [SFExtensionMessageKey: [\"success\": success]]\n context.completeRequest(returningItems: [response], completionHandler: nil)\n }\n}" } ], "resources": [ { "title": "w3.org — W3C WebExtensions Community Group", "url": "https://www.w3.org/community/webextensions/", "type": "documentation", "description": "The WebExtensions Community Group specifies the model, permissions, and common core of APIs for web browser extensions." }, { "title": "Packaging and distributing Safari Web Extensions with App Store Connect", "url": "https://developer.apple.com/documentation/SafariServices/packaging-and-distributing-safari-web-extensions-with-app-store-connect", "type": "documentation", "description": "Upload and distribute Safari Web Extensions without using a Mac or Xcode.", "sosumiURL": "https://sosumi.ai/documentation/SafariServices/packaging-and-distributing-safari-web-extensions-with-app-store-connect", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/SafariServices/packaging-and-distributing-safari-web-extensions-with-app-store-connect.json" }, { "title": "WebKit.org – Report issues to the WebKit open-source project", "url": "https://bugs.webkit.org", "type": "documentation", "description": "Bug tracking for WebKit open source project" }, { "title": "Submit feedback", "url": "http://feedbackassistant.apple.com", "type": "documentation", "description": null }, { "title": "MDN Web Docs - Web Extensions API", "url": "https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API", "type": "documentation", "description": "JavaScript APIs for web extensions." } ], "path": "sessions/wwdc2026/216-create-web-extensions-for-safari/", "files": { "metadata": "sessions/wwdc2026/216-create-web-extensions-for-safari/metadata.json", "readme": "sessions/wwdc2026/216-create-web-extensions-for-safari/README.md", "transcript": "sessions/wwdc2026/216-create-web-extensions-for-safari/transcript.md", "transcriptJSON": "sessions/wwdc2026/216-create-web-extensions-for-safari/transcript.json" } }, { "$schema": "https://raw.githubusercontent.com/guitaripod/wwdc-sessions/master/schema/session.schema.json", "schemaVersion": 1, "id": "wwdc2026-219", "event": "wwdc2026", "eventName": "WWDC26", "year": 2026, "eventContentId": 219, "title": "Enhance the accessibility of your reading app", "description": "Learn how to create robust reading experiences for VoiceOver, Speak Screen, and more. Find out how to provide intuitive text selection, clear navigation between lines and paragraphs, and continuous reading across individual elements and multiple pages.", "url": "https://developer.apple.com/videos/play/wwdc2026/219", "sosumiURL": "https://sosumi.ai/videos/play/wwdc2026/219", "type": "Video", "publishedAt": "2026-06-08T14:00:00-07:00", "platforms": [ "iOS", "iPadOS" ], "keywords": [], "topics": [ "SwiftUI & UI Frameworks", "Accessibility & Inclusion" ], "primaryTopic": "Accessibility & Inclusion", "duration": 1200, "hasTranscript": true, "transcriptWordCount": 2752, "availableLanguages": [ "eng", "fra", "jpn", "kor", "por", "spa", "zho" ], "media": { "hls": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/219/4/da70a3a7-e193-4513-904f-991788c1fa81/cmaf.m3u8", "downloadHLS": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/219/4/da70a3a7-e193-4513-904f-991788c1fa81/cmaf-download.m3u8", "downloadSD": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/219/4/da70a3a7-e193-4513-904f-991788c1fa81/downloads/wwdc2026-219_sd.mp4", "downloadHD": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/219/4/da70a3a7-e193-4513-904f-991788c1fa81/downloads/wwdc2026-219_hd.mp4", "duration": 1200 }, "codeSnippets": [ { "title": "Link text elements together with navigation APIs", "language": "swift", "startTimeSeconds": 449, "code": "// Link text elements together with navigation APIs\n\nimport UIKit\n\nclass TravelGuidePageController: UIViewController {\n\n var paragraphs: [TravelGuideParagraph]\n\n func configureNavigationElements() {\n for (index, paragraph) in paragraphs.enumerated() {\n if index + 1 < paragraphs.count {\n paragraph.accessibilityNextTextNavigationElement = paragraphs[index + 1]\n }\n if index - 1 >= 0 {\n paragraph.accessibilityPreviousTextNavigationElement = paragraphs[index - 1]\n }\n }\n }\n}" }, { "title": "Link text elements together with a linked group", "language": "swift", "startTimeSeconds": 479, "code": "// Link text elements together with a linked group\n\nimport SwiftUI\n\nstruct PageView : View {\n @Namespace private var pageNamespace\n var paragraphs: [String\n var pageNumber: Int\n\n var body: some View {\n Text(paragraphs[0])\n .textSelection(.enabled)\n .accessibilityLinkedGroup(id: pageNumber, in: pageNamespace)\n\n Text(paragraphs[1])\n .textSelection(.enabled)\n .accessibilityLinkedGroup(id: pageNumber, in: pageNamespace)\n }\n}" }, { "title": "Turn pages automatically after reading", "language": "swift", "startTimeSeconds": 590, "code": "// Turn pages automatically after reading\n\nimport UIKit\n\nclass TravelGuidePageController: UIViewController {\n\n override func viewDidLoad() {\n super.viewDidLoad()\n self.lastParagraphView.accessibilityTraits.insert(.causesPageTurn)\n }\n\n override func accessibilityScroll(_ direction: UIAccessibilityScrollDirection) -> Bool {\n moveToPage(direction)\n var scrollString = \"Page \\(currentPage) of \\(pages.count)\"\n UIAccessibility.post(notification: .pageScrolled, argument: scrollString)\n return true\n }\n}" }, { "title": "Add actions to the editor rotor", "language": "swift", "startTimeSeconds": 705, "code": "// Add actions to the editor rotor\n\nimport UIKit\n\nclass TravelGuideParagraph: UITextView {\n\n override var accessibilityCustomActions: [UIAccessibilityCustomAction]? {\n get {\n let saveAction = UIAccessibilityCustomAction(name: \"Save Recommendation\") { _ in\n self.saveRecommendation()\n }\n saveAction.category = UIAccessibilityCustomAction.editCategory\n return (super.accessibilityCustomActions ?? []) + [saveAction]\n }\n set { }\n }\n\n private func saveRecommendation() -> Bool {\n ...\n return true\n }\n}" }, { "title": "Adopt UITextInput", "language": "swift", "startTimeSeconds": 970, "code": "// Adopt UITextInput\n\nimport UIKit\n\nclass ScannedPage: UIView, UITextInput {\n\n override init(frame: CGRect) {\n super.init(frame: frame)\n let interaction = UITextInteraction(for: .nonEditable)\n interaction.textInput = self\n addInteraction(interaction)\n }\n\n func selectionRects(for range: UITextRange) -> [UITextSelectionRect] {\n var rects: [UITextSelectionRect] = []\n\n let startLine = lineIndex(for: range.start)\n let endLine = lineIndex(for: range.end)\n\n for line in startLine...endLine {\n let rect = selectionRectFromImage(for: range, in: line)\n rects.append(rect)\n }\n\n return rects\n }\n\n func text(in range: UITextRange) -> String? {\n let nsRange = nsRange(from: range)\n guard let range = Range(nsRange, in: scannedText) else {\n return nil\n }\n return String(scannedText[range])\n }\n\n var tokenizer: any UITextInputTokenizer { CustomHandwritingTokenizer(textInput: self) }\n\n weak var inputDelegate: UITextInputDelegate?\n\n var selectedTextRange: UITextRange? {\n // Update visuals when assistive technologies change selection\n willSet { inputDelegate?.selectionWillChange(self) }\n didSet { inputDelegate?.selectionDidChange(self) }\n }\n\n}" } ], "resources": [ { "title": "accessibilityNextTextNavigationElement", "url": "https://developer.apple.com/documentation/ObjectiveC/NSObject-swift.class/accessibilityNextTextNavigationElement", "type": "documentation", "description": "An accessibility element that contains text that semantically follows this element’s text.", "sosumiURL": "https://sosumi.ai/documentation/ObjectiveC/NSObject-swift.class/accessibilityNextTextNavigationElement", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/ObjectiveC/NSObject-swift.class/accessibilityNextTextNavigationElement.json" }, { "title": "editCategory", "url": "https://developer.apple.com/documentation/UIKit/UIAccessibilityCustomAction/editCategory", "type": "documentation", "description": "A constant that an app specifies through the category property on a UIKit accessibility custom action.", "sosumiURL": "https://sosumi.ai/documentation/UIKit/UIAccessibilityCustomAction/editCategory", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/UIKit/UIAccessibilityCustomAction/editCategory.json" }, { "title": "accessibilityLinkedGroup(id:in:)", "url": "https://developer.apple.com/documentation/SwiftUI/View/accessibilityLinkedGroup(id:in:)", "type": "documentation", "description": "Links multiple accessibility elements so that the user can quickly", "sosumiURL": "https://sosumi.ai/documentation/SwiftUI/View/accessibilityLinkedGroup(id:in:)", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/SwiftUI/View/accessibilityLinkedGroup(id:in:).json" }, { "title": "causesPageTurn", "url": "https://developer.apple.com/documentation/SwiftUI/AccessibilityTraits/causesPageTurn", "type": "documentation", "description": "The accessibility element causes an automatic page turn when VoiceOver", "sosumiURL": "https://sosumi.ai/documentation/SwiftUI/AccessibilityTraits/causesPageTurn", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/SwiftUI/AccessibilityTraits/causesPageTurn.json" }, { "title": "UITextInput", "url": "https://developer.apple.com/documentation/UIKit/UITextInput", "type": "documentation", "description": "A set of methods for interacting with the text input system and enabling features in documents.", "sosumiURL": "https://sosumi.ai/documentation/UIKit/UITextInput", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/UIKit/UITextInput.json" }, { "title": "Accessibility for UIKit", "url": "https://developer.apple.com/documentation/UIKit/accessibility-for-uikit", "type": "documentation", "description": "Make your UIKit apps accessible to everyone who uses iOS and tvOS.", "sosumiURL": "https://sosumi.ai/documentation/UIKit/accessibility-for-uikit", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/UIKit/accessibility-for-uikit.json" } ], "path": "sessions/wwdc2026/219-enhance-the-accessibility-of-your-reading-app/", "files": { "metadata": "sessions/wwdc2026/219-enhance-the-accessibility-of-your-reading-app/metadata.json", "readme": "sessions/wwdc2026/219-enhance-the-accessibility-of-your-reading-app/README.md", "transcript": "sessions/wwdc2026/219-enhance-the-accessibility-of-your-reading-app/transcript.md", "transcriptJSON": "sessions/wwdc2026/219-enhance-the-accessibility-of-your-reading-app/transcript.json" } }, { "$schema": "https://raw.githubusercontent.com/guitaripod/wwdc-sessions/master/schema/session.schema.json", "schemaVersion": 1, "id": "wwdc2026-220", "event": "wwdc2026", "eventName": "WWDC26", "year": 2026, "eventContentId": 220, "title": "Refine accessibility for custom controls", "description": "Unlock the full potential of your app’s interactive elements by making them accessible to everyone. We’ll break down how people understand and use controls with VoiceOver and other assistive technologies, exploring a variety of input methods like actions, the passthrough gesture, and direct touch. Join us for an in-depth exploration of several example controls as we refine and elevate the accessibility experience in each one.", "url": "https://developer.apple.com/videos/play/wwdc2026/220", "sosumiURL": "https://sosumi.ai/videos/play/wwdc2026/220", "type": "Video", "publishedAt": "2026-06-08T14:00:00-07:00", "platforms": [ "iOS", "iPadOS", "macOS", "tvOS", "visionOS", "watchOS" ], "keywords": [], "topics": [ "SwiftUI & UI Frameworks", "Accessibility & Inclusion" ], "primaryTopic": "Accessibility & Inclusion", "duration": 985, "hasTranscript": true, "transcriptWordCount": 2192, "availableLanguages": [ "eng", "fra", "jpn", "kor", "por", "spa", "zho" ], "media": { "hls": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/220/4/945f8d34-8427-4476-ae75-34edc4a9c3f9/cmaf.m3u8", "downloadHLS": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/220/4/945f8d34-8427-4476-ae75-34edc4a9c3f9/cmaf-download.m3u8", "downloadSD": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/220/4/945f8d34-8427-4476-ae75-34edc4a9c3f9/downloads/wwdc2026-220_sd.mp4", "downloadHD": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/220/4/945f8d34-8427-4476-ae75-34edc4a9c3f9/downloads/wwdc2026-220_hd.mp4", "duration": 985 }, "codeSnippets": [ { "title": "Improve accessibility for coffee dispenser", "language": "swift", "startTimeSeconds": 301, "code": "// Improve accessibility for coffee dispenser\n\nimport SwiftUI\n\nstruct CoffeeDispenserView: View {\n @State var coffee: Double = 0.0\n var body: some View {\n CoffeeSlider(value: coffee)\n .accessibilityElement()\n .accessibilityLabel(\"Coffee Dispenser\")\n .accessibilityValue(\"\\(Int(coffee)) ounces\")\n .accessibilityAddTraits(.adjustable)\n .accessibilityAdjustableAction { direction in\n switch direction {\n case .increment:\n increaseCoffeeAmount()\n case .decrement:\n decreaseCoffeeAmount()\n }\n }\n }\n}" }, { "title": "Set the accessibility activation point", "language": "swift", "startTimeSeconds": 425, "code": "// Set the accessibility activation point\nimport SwiftUI\n\nstruct CoffeeDispenserView: View {\n @State var coffee: Double = 0.0\n\n var body: some View {\n CoffeeSlider(value: coffee)\n .accessibilityActivationPoint(\n UnitPoint(x: 0.5, y: 1 - coffee)\n )\n }\n}" }, { "title": "Post accessibility announcements", "language": "swift", "startTimeSeconds": 447, "code": "// Post accessibility announcements \n\nimport SwiftUI\n\nstruct CoffeeDispenserView: View {\n @State var coffee: Double = 0.0\n\n var body: some View {\n CoffeeSlider(value: coffee)\n // ...\n .onChange(of: coffee) { _, newValue in\n if sufficientTimeSinceLastAnnouncement() && valueHasChanged() {\n cacheLastSpokenValue(newValue)\n AccessibilityNotification\n .Announcement(newValue)\n .post()\n }\n }\n }\n}" }, { "title": "Add custom actions", "language": "swift", "startTimeSeconds": 613, "code": "// Add custom actions\n\nimport SwiftUI\n\nstruct EqualizerView: View {\n var body: some View {\n EqualizerPad()\n .accessibilityActions(\"Move Up\") {\n increaseY(by: 10)\n }\n .accessibilityActions(\"Move Right\") {\n increaseX(by: 10)\n }\n .accessibilityActions(\"Move Down\") {\n decreaseY(by: 10)\n }\n .accessibilityActions(\"Move Left\") {\n decreaseX(by: 10)\n }\n }\n }" }, { "title": "Customize accessibility for the interactive cat surface", "language": "swift", "startTimeSeconds": 767, "code": "// Customize accessibility for the interactive cat surface\n\nimport SwiftUI\n\nstruct VirtualCat: View {\n var cat: CatModel\n var body: some View {\n InteractiveCatSurface()\n .accessibilityLabel(\"Virtual Cat\")\n .accessibilityValue(cat.currentReaction.description)\n .accessibilityDirectTouch([.requiresActivation])\n }\n}" } ], "resources": [ { "title": "Accessible controls", "url": "https://developer.apple.com/documentation/SwiftUI/Accessible-controls", "type": "documentation", "description": "Improve access to actions that your app can undertake.", "sosumiURL": "https://sosumi.ai/documentation/SwiftUI/Accessible-controls", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/SwiftUI/Accessible-controls.json" }, { "title": "Accessible descriptions", "url": "https://developer.apple.com/documentation/SwiftUI/Accessible-descriptions", "type": "documentation", "description": "Describe interface elements to help people understand what they represent.", "sosumiURL": "https://sosumi.ai/documentation/SwiftUI/Accessible-descriptions", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/SwiftUI/Accessible-descriptions.json" }, { "title": "Accessibility fundamentals", "url": "https://developer.apple.com/documentation/SwiftUI/Accessibility-fundamentals", "type": "documentation", "description": "Make your SwiftUI apps accessible to everyone, including people with", "sosumiURL": "https://sosumi.ai/documentation/SwiftUI/Accessibility-fundamentals", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/SwiftUI/Accessibility-fundamentals.json" }, { "title": "Creating accessible views", "url": "https://developer.apple.com/documentation/SwiftUI/creating-accessible-views", "type": "samplecode", "description": "Make your app accessible to everyone by applying accessibility modifiers to your SwiftUI views.", "sosumiURL": "https://sosumi.ai/documentation/SwiftUI/creating-accessible-views", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/SwiftUI/creating-accessible-views.json" } ], "path": "sessions/wwdc2026/220-refine-accessibility-for-custom-controls/", "files": { "metadata": "sessions/wwdc2026/220-refine-accessibility-for-custom-controls/metadata.json", "readme": "sessions/wwdc2026/220-refine-accessibility-for-custom-controls/README.md", "transcript": "sessions/wwdc2026/220-refine-accessibility-for-custom-controls/transcript.md", "transcriptJSON": "sessions/wwdc2026/220-refine-accessibility-for-custom-controls/transcript.json" } }, { "$schema": "https://raw.githubusercontent.com/guitaripod/wwdc-sessions/master/schema/session.schema.json", "schemaVersion": 1, "id": "wwdc2026-221", "event": "wwdc2026", "eventName": "WWDC26", "year": 2026, "eventContentId": 221, "title": "Prepare your tvOS apps for Dynamic Type", "description": "Dynamic Type empowers people to comfortably read and interact with your app by letting them choose the text size that works best for them. You’ll learn how to get your app ready for Dynamic Type on tvOS through practical techniques for implementing font scaling and adapting your layouts for larger content. You’ll also discover how to optimize your media-focused interfaces like grids and carousels, ensuring a great experience for everyone who relies on different text sizes.", "url": "https://developer.apple.com/videos/play/wwdc2026/221", "sosumiURL": "https://sosumi.ai/videos/play/wwdc2026/221", "type": "Video", "publishedAt": "2026-06-08T14:00:00-07:00", "platforms": [ "tvOS" ], "keywords": [], "topics": [ "Audio & Video", "Accessibility & Inclusion" ], "primaryTopic": "Accessibility & Inclusion", "duration": 608, "hasTranscript": true, "transcriptWordCount": 1406, "availableLanguages": [ "eng", "fra", "jpn", "kor", "por", "spa", "zho" ], "media": { "hls": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/221/5/ada10ebd-34f8-4f57-92b5-4b3cd6281267/cmaf.m3u8", "downloadHLS": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/221/5/ada10ebd-34f8-4f57-92b5-4b3cd6281267/cmaf-download.m3u8", "downloadSD": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/221/5/ada10ebd-34f8-4f57-92b5-4b3cd6281267/downloads/wwdc2026-221_sd.mp4", "downloadHD": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/221/5/ada10ebd-34f8-4f57-92b5-4b3cd6281267/downloads/wwdc2026-221_hd.mp4", "duration": 608 }, "codeSnippets": [ { "title": "Adopt standard text styles", "language": "swift", "startTimeSeconds": 298, "code": "// Adopt standard text styles\n\nVStack(spacing: 20) {\n Text(\"Signup information\")\n .font(.caption.bold())\n .lineLimit(1)\n .foregroundStyle(.secondary)\n .frame(width: 300, alignment: .leading)\n HStack(alignment: .top, spacing: 40) { \n //* ... *//\n }\n}" }, { "title": "Use flexible constraints", "language": "swift", "startTimeSeconds": 310, "code": "// Adopt standard text styles\n\nVStack(spacing: 20) {\n Text(\"Signup information\")\n .font(.caption.bold())\n .lineLimit(1)\n .foregroundStyle(.secondary)\n .frame(maxWidth: .infinity, alignment: .leading)\n HStack(alignment: .top, spacing: 40) { \n /* ... */\n }\n}" }, { "title": "Dynamic Type with text styles in UIKit", "language": "swift", "startTimeSeconds": 355, "code": "// Hard coded text size in UIKit\n\ntitleLabel.font = UIFont.boldSystemFont(ofSize: 28)\n\n// Dynamic Type with text styles in UIKit\n\ntitleLabel.font = UIFont.preferredFont(forTextStyle: .headline)\ntitleLabel.adjustsFontForContentSizeCategory = true" }, { "title": "Adapt layout in response to dynamic type", "language": "swift", "startTimeSeconds": 429, "code": "// A view that shows a collection of movie posters\n\nstruct MovieShelf: View {\n @Environment(\\.dynamicTypeSize) private var dynamicTypeSize\n var body: some View {\n ScrollView(.horizontal) {\n LazyHStack(spacing: 40) {\n ForEach(Asset.allCases) { asset in\n Button { \n /* ... */\n } label: {\n asset.portraitImage\n Text(asset.title)\n }\n .containerRelativeFrame(\n .horizontal,\n count: dynamicTypeSize.isAccessibilitySize ? 4 : 6,\n spacing: 40)\n }\n }\n }\n }\n}" }, { "title": "Provide a conditional layout for when larger sizes are turned on", "language": "swift", "startTimeSeconds": 487, "code": "// A view that shows content in a card\n\nstruct CardContentView: View {\n @Environment(\\.dynamicTypeSize) private var dynamicTypeSize\n var asset: Asset\n\n var body: some View {\n let layout = dynamicTypeSize.isAccessibilitySize ?\n AnyLayout(VStackLayout(alignment: .leading, spacing: 10)) :\n AnyLayout(HStackLayout(alignment: .top, spacing: 10))\n layout {\n /* ... */\n }\n }\n}" }, { "title": "UIKit adaptive layout that responds to content size changes", "language": "swift", "startTimeSeconds": 511, "code": "// UIKit adaptive layout that responds to content size changes\n\nclass AdaptiveLayoutViewController: UIViewController {\n let stackView = UIStackView()\n\n override func viewDidLoad() {\n super.viewDidLoad()\n updateLayout()\n\n let sizeTraits: [UITrait] = [UITraitPreferredContentSizeCategory.self]\n registerForTraitChanges(sizeTraits, action: #selector(updateLayout))\n }\n\n private func updateLayout() {\n if traitCollection.preferredContentSizeCategory.isAccessibilityCategory {\n stackView.axis = .vertical\n } else {\n stackView.axis = .horizontal\n }\n }\n\n}" } ], "resources": [ { "title": "Applying custom fonts to text", "url": "https://developer.apple.com/documentation/SwiftUI/Applying-Custom-Fonts-to-Text", "type": "documentation", "description": "Add and use a font in your app that scales with Dynamic Type.", "sosumiURL": "https://sosumi.ai/documentation/SwiftUI/Applying-Custom-Fonts-to-Text", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/SwiftUI/Applying-Custom-Fonts-to-Text.json" }, { "title": "Scaling fonts automatically", "url": "https://developer.apple.com/documentation/UIKit/scaling-fonts-automatically", "type": "documentation", "description": "Scale text in your interface automatically using Dynamic Type.", "sosumiURL": "https://sosumi.ai/documentation/UIKit/scaling-fonts-automatically", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/UIKit/scaling-fonts-automatically.json" } ], "path": "sessions/wwdc2026/221-prepare-your-tvos-apps-for-dynamic-type/", "files": { "metadata": "sessions/wwdc2026/221-prepare-your-tvos-apps-for-dynamic-type/metadata.json", "readme": "sessions/wwdc2026/221-prepare-your-tvos-apps-for-dynamic-type/README.md", "transcript": "sessions/wwdc2026/221-prepare-your-tvos-apps-for-dynamic-type/transcript.md", "transcriptJSON": "sessions/wwdc2026/221-prepare-your-tvos-apps-for-dynamic-type/transcript.json" } }, { "$schema": "https://raw.githubusercontent.com/guitaripod/wwdc-sessions/master/schema/session.schema.json", "schemaVersion": 1, "id": "wwdc2026-222", "event": "wwdc2026", "eventName": "WWDC26", "year": 2026, "eventContentId": 222, "title": "Meet the new MetricKit", "description": "Find and fix performance problems faster than ever. Join us to explore how MetricKit equips you with vital performance metrics and actionable diagnostics to help you understand exactly where your app has opportunities for improvements. We’ll also cover how to intersect your app’s metrics and diagnostics by app state by using the StateReporting framework, providing you with the full picture to investigate optimizations in your app’s experience.", "url": "https://developer.apple.com/videos/play/wwdc2026/222", "sosumiURL": "https://sosumi.ai/videos/play/wwdc2026/222", "type": "Video", "publishedAt": "2026-06-08T14:00:00-07:00", "platforms": [ "iOS", "iPadOS", "macOS" ], "keywords": [], "topics": [ "Developer Tools", "System Services" ], "primaryTopic": "System Services", "duration": 1063, "hasTranscript": true, "transcriptWordCount": 2668, "availableLanguages": [ "eng", "fra", "jpn", "kor", "por", "spa", "zho" ], "media": { "hls": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/222/4/86b76599-f095-4bd8-8004-f1dbd1bacb84/cmaf.m3u8", "downloadHLS": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/222/4/86b76599-f095-4bd8-8004-f1dbd1bacb84/cmaf-download.m3u8", "downloadSD": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/222/4/86b76599-f095-4bd8-8004-f1dbd1bacb84/downloads/wwdc2026-222_sd.mp4", "downloadHD": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/222/4/86b76599-f095-4bd8-8004-f1dbd1bacb84/downloads/wwdc2026-222_hd.mp4", "duration": 1063 }, "codeSnippets": [ { "title": "Receive metrics from MetricKit", "language": "swift", "startTimeSeconds": 299, "code": "// Receive metrics from MetricKit\n\nimport MetricKit\n\nlet manager = MetricManager()\n\nfor await report in manager.metricReports {\n processReport(report)\n}" }, { "title": "Send your metrics to the server", "language": "swift", "startTimeSeconds": 325, "code": "// Send your metrics to the server\n\nimport MetricKit\n\nfor await report in manager.metricReports {\n let jsonData = try JSONEncoder().encode(report)\n sendToServer(jsonData)\n}" }, { "title": "Access your performance metrics", "language": "swift", "startTimeSeconds": 344, "code": "// Access your performance metrics\n\nimport MetricKit\n\nfor await report in manager.metricReports {\n let intervalEntries = report.intervalEntries\n let fullDayEntry = intervalEntries.fullDayEntry\n\n for entry in intervalEntries {\n let memoryMetrics = entry.values.filter { $0.metricGroup == .memory }\n\n for metric in memoryMetrics {\n switch metric {\n case .peakMemory(let peak):\n processPeakMemory(peak)\n default: break\n }\n }\n }\n}" }, { "title": "Receive diagnostics", "language": "swift", "startTimeSeconds": 539, "code": "// Receive diagnostics\n\nimport MetricKit\n\nlet manager = MetricManager()\n\nfor await report in manager.diagnosticReports {\n processReport(report)\n}" }, { "title": "Send your diagnostic data to the server", "language": "swift", "startTimeSeconds": 554, "code": "// Send your diagnostic data to the server\n\nimport MetricKit\n\nfor await report in manager.diagnosticReports {\n let jsonData = try JSONEncoder().encode(report)\n sendToServer(jsonData)\n}" }, { "title": "Access your diagnostic data", "language": "swift", "startTimeSeconds": 579, "code": "// Access your diagnostic data\n\nimport MetricKit\n\nfor await report in manager.diagnosticReports {\n switch report.result {\n case .crash(let crash):\n let backtrace = crash.callStackTree\n let reason = crash.terminationReason\n let category = crash.terminationCategory\n processCrash(backtrace: backtrace, reason: reason, category: category)\n case .hang(let hang):\n processHangDiagnostic(hang)\n default: break\n }\n}" }, { "title": "Receive MetricKit data with states", "language": "swift", "startTimeSeconds": 837, "code": "// Receive MetricKit data with states\n\nimport MetricKit\nimport StateReporting\n\nlet domain = StateReportingDomain(\"com.metrickitsample.tabs\")\nlet manager = MetricManager(enabledStateReportingDomains: [domain])\n\n\n// Report transitions throughout the app\n\nlet reporter = StateReporter.reporter(for: domain.rawValue)\nreporter.reportTransition(to: \"Reports\")" }, { "title": "Define custom structured types", "language": "swift", "startTimeSeconds": 861, "code": "// Define custom structured types\n\nimport StateReporting\n\n@ReportableMetadata\nstruct ViewConfiguration {\n let listSize: String\n let isSorted: Bool\n}\n\nlet reporter = StateReporter.reporter(\n for: domain.rawValue,\n stableMetadata: ViewConfiguration.self\n)\n\nreporter.reportTransition(\n to: \"Reports\",\n stableMetadata: ViewConfiguration(listSize: \"large\", isSorted: false)\n)" }, { "title": "Send encoded metric reports to the server", "language": "swift", "startTimeSeconds": 929, "code": "// Send encoded metric reports to the server\n\nimport MetricKit\n\nfor await report in manager.metricReports {\n let encoder = JSONEncoder()\n\n let formatKey = MetricReport.encodingFormatKey\n encoder.userInfo[formatKey] = MetricReport.EncodingFormat.byStateReportingDomain\n\n let jsonData = try encoder.encode(report)\n sendToServer(jsonData)\n}" } ], "resources": [ { "title": "Getting started with StateReporting", "url": "https://developer.apple.com/documentation/StateReporting/getting-started-with-statereporting", "type": "documentation", "description": "Define reportable metadata types, obtain a state reporter for your domain, and report transitions at the right call sites in your app.", "sosumiURL": "https://sosumi.ai/documentation/StateReporting/getting-started-with-statereporting", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/StateReporting/getting-started-with-statereporting.json" }, { "title": "Analyzing app performance with MetricKit", "url": "https://developer.apple.com/documentation/MetricKit/analyzing-app-performance-with-metrickit", "type": "documentation", "description": "Work with the metric values, diagnostic data, and environments in MetricKit reports.", "sosumiURL": "https://sosumi.ai/documentation/MetricKit/analyzing-app-performance-with-metrickit", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/MetricKit/analyzing-app-performance-with-metrickit.json" }, { "title": "Monitoring app performance with MetricKit", "url": "https://developer.apple.com/documentation/MetricKit/monitoring-app-performance-with-metrickit", "type": "documentation", "description": "Receive daily performance and diagnostic reports from real device usage.", "sosumiURL": "https://sosumi.ai/documentation/MetricKit/monitoring-app-performance-with-metrickit", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/MetricKit/monitoring-app-performance-with-metrickit.json" }, { "title": "Track performance by app state using MetricKit", "url": "https://developer.apple.com/documentation/MetricKit/track-performance-by-app-state-using-metrickit", "type": "samplecode", "description": "Collect performance metrics, diagnostic reports, and experiment data related to your app’s current state using the MetricKit framework.", "sosumiURL": "https://sosumi.ai/documentation/MetricKit/track-performance-by-app-state-using-metrickit", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/MetricKit/track-performance-by-app-state-using-metrickit.json" }, { "title": "MetricKit", "url": "https://developer.apple.com/documentation/MetricKit", "type": "documentation", "description": "Measure your app’s performance using daily metric and diagnostic reports from real users.", "sosumiURL": "https://sosumi.ai/documentation/MetricKit", "doccJSON": "https://developer.apple.com/tutorials/data/documentation/MetricKit.json" } ], "path": "sessions/wwdc2026/222-meet-the-new-metrickit/", "files": { "metadata": "sessions/wwdc2026/222-meet-the-new-metrickit/metadata.json", "readme": "sessions/wwdc2026/222-meet-the-new-metrickit/README.md", "transcript": "sessions/wwdc2026/222-meet-the-new-metrickit/transcript.md", "transcriptJSON": "sessions/wwdc2026/222-meet-the-new-metrickit/transcript.json" } }, { "$schema": "https://raw.githubusercontent.com/guitaripod/wwdc-sessions/master/schema/session.schema.json", "schemaVersion": 1, "id": "wwdc2026-223", "event": "wwdc2026", "eventName": "WWDC26", "year": 2026, "eventContentId": 223, "title": "Live Activities essentials", "description": "Elevate your app experience with Live Activities. Explore many of the places where Live Activities appear, including a new style in the Dynamic Island that delivers more information when iPhone is used in landscape. Learn how to tailor your Live Activity for each space, structure your content and data, and drive real time updates from start to finish using ActivityKit and push notifications.", "url": "https://developer.apple.com/videos/play/wwdc2026/223", "sosumiURL": "https://sosumi.ai/videos/play/wwdc2026/223", "type": "Video", "publishedAt": "2026-06-08T14:00:00-07:00", "platforms": [ "iOS", "iPadOS" ], "keywords": [], "topics": [ "SwiftUI & UI Frameworks", "App Services" ], "primaryTopic": "App Services", "duration": 916, "hasTranscript": true, "transcriptWordCount": 2205, "availableLanguages": [ "eng", "fra", "jpn", "kor", "por", "spa", "zho" ], "media": { "hls": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/223/4/9098c495-ea8b-44f9-b852-f6eb64840161/cmaf.m3u8", "downloadHLS": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/223/4/9098c495-ea8b-44f9-b852-f6eb64840161/cmaf-download.m3u8", "downloadSD": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/223/4/9098c495-ea8b-44f9-b852-f6eb64840161/downloads/wwdc2026-223_sd.mp4", "downloadHD": "https://devstreaming-cdn.apple.com/videos/wwdc/2026/223/4/9098c495-ea8b-44f9-b852-f6eb64840161/downloads/wwdc2026-223_hd.mp4", "duration": 916 }, "codeSnippets": [ { "title": "Define initial Live Activity", "language": "swift", "startTimeSeconds": 256, "code": "// Define initial Live Activity.\n\nimport ActivityKit\nimport Foundation\n\npublic struct DrinkOrderAttributes: ActivityAttributes {\n let shopName: String\n let drink: Drink\n let orderID: UUID\n\n public struct ContentState: Codable, Hashable {\n var phase: DrinkOrder.Phase = .waiting\n var estimatedReadyDate: Date\n var rating: DrinkOrder.Rating?\n }\n}" }, { "title": "Create each Live Activity view", "language": "swift", "startTimeSeconds": 335, "code": "// Create each Live Activity view\n\nimport ActivityKit\nimport SwiftUI\nimport WidgetKit\n\nstruct DrinkOrderLiveActivity: Widget {\n var body: some WidgetConfiguration {\n ActivityConfiguration(for: DrinkOrderAttributes.self) { context in\n ActivityView(context: context)\n } dynamicIsland: { context in\n DynamicIsland {\n DynamicIslandExpandedRegion(.leading) {\n ExpandedLeadingView(context: context)\n }\n DynamicIslandExpandedRegion(.center) {\n ExpandedCenterView(context: context)\n }\n DynamicIslandExpandedRegion(.trailing) {\n ExpandedTrailingView(context: context)\n }\n DynamicIslandExpandedRegion(.bottom) {\n ExpandedBottomView(context: context)\n }\n } compactLeading: {\n CompactLeadingView(context: context)\n } compactTrailing: {\n CompactTrailingView(context: context)\n } minimal: {\n MinimalView(context: context)\n }\n }\n }\n}" }, { "title": "Start and update a Live Activity", "language": "swift", "startTimeSeconds": 463, "code": "// Start a Live Activity\n\nfunc launchLiveActivity(order: DrinkOrder) throws {\n guard ActivityAuthorizationInfo().areActivitiesEnabled else { return }\n let attributes = DrinkOrderAttributes(shopName: \"Coffee Shop\", drink: order.drink, orderID: order.id)\n let estimatedReadyDate = Date.now + (15 * 60)\n let contentState = DrinkOrderAttributes.ContentState(phase: .waiting, estimatedReadyDate: estimatedReadyDate)\n let activityContent = ActivityContent(state: contentState, staleDate: nil)\n let activity = try Activity.request(attributes: attributes, content: activityContent)\n\n}\n\n// Update a Live Activity\n\nawait activity.update(\n ActivityContent(\n state: DrinkOrderAttributes.ContentState(\n phase: .preparing,\n estimatedReadyDate: estimatedReadyDate\n ),\n staleDate: nil\n )\n)" }, { "title": "Optimize for limited width in the Dynamic Island", "language": "swift", "startTimeSeconds": 633, "code": "// Optimize for limited width in the Dynamic Island\n\nstruct CompactTrailingView: View {\n @Environment(\\.isDynamicIslandLimitedInWidth) var isDynamicIslandLimitedInWidth\n var context: ActivityViewContext