WidgetKitで良い体験を作るには / Good experience with WidgetKit

by Tatsuya Tanaka

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©︎ 2021 Yahoo Japan Corporation All rights reserved. WidgetKit ΢ΟδΣοτΛ࡞੒͢Δʹ͸WidgetKitϑϨʔϜϫʔΫΛ࢖͏ ΢ΟδΣοτͷUI͸SwiftUIͰ࡞Δ @main struct WidgetExtension: Widget { let kind: String = "CatWidget" var body: some WidgetConfiguration { StaticConfiguration(kind: kind, provider: Provider()) { entry in WidgetEntryView(entry: entry) } .configurationDisplayName("ೣ΢ΟδΣοτ") .description("ೣͷࣸਅ͕ϥϯμϜͰ੾ΓସΘΔ΢ΟδΣοτ") } }

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©︎ 2021 Yahoo Japan Corporation All rights reserved. ΢ΟδΣοτͷ༧ࢉ ༧ࢉ͸֤΢ΟδΣοτ͝ͱʹҟͳΓɺར༻ঢ়گʹΑܾͬͯ·Δ IUUQTEFWFMPQFSBQQMFDPNEPDVNFOUBUJPOXJEHFULJULFFQJOHBXJEHFUVQUPEBUF ༧ࢉ: X ʹ ໿40ʙ70ճ/day → ໿15ʙ30෼ִؒͷϦϩʔυ͕ݶք Α͘දࣔ͞ΕΔ΢ΟδΣοτͷ৔߹

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©︎ 2021 Yahoo Japan Corporation All rights reserved. ΢ΟδΣοτͷ༧ࢉର৅֎ ҎԼͷ৔߹ʹ͸༧ࢉΛ࢖ΘͣʹϦϩʔυͰ͖Δ IUUQTEFWFMPQFSBQQMFDPNEPDVNFOUBUJPOXJEHFULJULFFQJOHBXJEHFUVQUPEBUF ɾΞϓϦຊମ͕ϑΥΞάϥ΢ϯυ࣌ ɾΞϓϦຊମͰԻָ࠶ੜத΍Ґஔ৘ใऔಘத ɾγεςϜʹΑΔߋ৽ ɹɾ୺຤ͷݴޠมߋ࣌ ɹɾDynamicType΍Accessibilityͷઃఆมߋ࣌ ɹɾσʔλ͕ݹ͍Մೳੑͷ͋Δ΢ΟδΣοτͷදࣔ࣌

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©︎ 2021 Yahoo Japan Corporation All rights reserved. ΢ΟδΣοτʹඞཁͳσʔλ͚ͩΛѻ͓͏ ɾ΢ΟδΣοτ༻ʹσʔλྔͷগͳ͍Web APIΛ༻ҙ͢Δ ɾ΢ΟδΣοτ༻ʹ੾Γग़ͨ͠σʔλΛอଘͯͦ͠ΕΛಡΈࠐΉ ΢ΟδΣοτ͸ϝϞϦ੍ݶ͕ݫ͍͠ (࠷େ30MB) IUUQTEFWFMPQFSBQQMFDPNGPSVNTUISFBE ※࣮ػͰಈ͔͢ͱྫ֎ʹͳΔ ޻෉͕ඞཁ

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©︎ 2021 Yahoo Japan Corporation All rights reserved. όοΫάϥ΢ϯυηογϣϯ ࣌ؒͷ͔͔Δ௨৴΍ѱ͍௨৴؀ڥ౳Λαϙʔτ͢ΔͨΊʹ   όοΫάϥ΢ϯυ௨৴΋׆༻Ͱ͖Δ @main struct WidgetExtension: Widget { private let kind = "CatWidget" var body: some WidgetConfiguration { StaticConfiguration(kind: kind, provider: Provider()) { entry in CatWidget(entry: entry) } .onBackgroundURLSessionEvents(matching: "get_huge_data") { identifier, completion in BackgroundFetcher.shared.completion = completion BackgroundFetcher.shared.restoreURLSessionIfNeeded() } .configurationDisplayName("ೣ΢ΟδΣοτ") .description("ೣͷࣸਅ͕ϥϯμϜͰ੾ΓସΘΔ΢ΟδΣοτ") } }

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final class BackgroundFetcher: NSObject, URLSessionDownloadDelegate { static let shared = BackgroundFetcher() var completion: (() -> Void)? private lazy var session: URLSession = { let config = URLSessionConfiguration.background(withIdentifier: "get_huge_data") config.isDiscretionary = true // ిݯ઀ଓத΍WiFi઀ଓதͳͲͷྑ͍λΠϛϯάͰDL return URLSession(configuration: config, delegate: self, delegateQueue: nil) }() func restoreURLSessionIfNeeded() { _ = session } // getTimeline౳͔Βݺͼग़͢ func setDownloadSchedule(completion: (() -> Void)? = nil) { session.getTasksWithCompletionHandler { _, _, downloadTasks in defer { completion?() } guard downloadTasks.isEmpty else { return } let task = Self.shared.session.downloadTask(with: URL(string: "https://****")!) task.earliestBeginDate = <࣍ͷϦϩʔυλΠϛϯάΑΓલʹઃఆ> task.countOfBytesClientExpectsToSend = 500 task.countOfBytesClientExpectsToReceive = 8 * 1024 * 1024 task.resume() } } func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didFinishDownloadingTo location: URL) { // DLͨ͠σʔλΛDocumentsσΟϨΫτϦͳͲʹҠಈͯ͠ޙ͔ΒऔಘͰ͖ΔΑ͏ʹ͢Δ } func urlSessionDidFinishEvents(forBackgroundURLSession session: URLSession) { completion?() completion = nil WidgetCenter.shared.reloadTimelines(ofKind: "CatWidget") } } ɾσʔλΛࣄલDL͢ΔͱಡΈࠐΈ଴ͪΛ࡟ݮͰ͖Δ   ɾϦτϥΠॲཧ౳ͰΑΓ࣮֬ʹϑΣονͰ͖Δ

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©︎ 2021 Yahoo Japan Corporation All rights reserved. ద੾ͳߋ৽࣮૷Λ͠Α͏ ɾEntry   ɹɹɾͰ͖Δ͚ͩઌ·Ͱઃఆ͢Δ   ɹɹɾEntry͸ִؒΛ௕Ίʹ (࠷௿5෼ִؒҎ্)     ɾϦϩʔυϙϦγʔ IUUQTEFWFMPQFSBQQMFDPNEPDVNFOUBUJPOXJEHFULJULFFQJOHBXJEHFUVQUPEBUF ΢ΟδΣοτʹ͓͍ͯେ੾ͳͷ͸৘ใͷߋ৽ ͨͩ͠ɺա౓ͳߋ৽͸௨৴ྔ΍όοςϦʔফඅɺαʔόʔෛՙʹؔΘΔ

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©︎ 2021 Yahoo Japan Corporation All rights reserved. ϦϩʔυϙϦγʔ (afterDate) .afterDate Timeline 6:00 19:00 12:00 19:00 6:00 12:00 let nextDate = [6, 12, 19].compactMap { calendar.nextDate(after: Date(), matching: .init(hour: $0, minute: 0), matchingPolicy: .nextTime) } .min()! let timeline = Timeline(entries: entries, policy: .after(nextDate))

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©︎ 2021 Yahoo Japan Corporation All rights reserved. Human Interface GuidelinesΛ֬ೝ͠Α͏ ɾΞϓϦͷϝΠϯػೳʹؔ࿈ͨ͠৘ใΛఏڙ͢Δ ɾΞϓϦΛىಈ͢Δ͚ͩͷ΢ΟδΣοτ͸ආ͚Δ ɾҰ೔Λ௨ͯ͠มԽ͢Δίϯςϯπ͕͓͢͢Ί ɾΠϯλϥΫγϣϯ෦෼͸গͳΊʹ ɾϑΥϯτ͸SF ProɺαΠζ͸11ptҎ্ਪ঑ IUUQTEFWFMPQFSBQQMFDPNEFTJHOIVNBOJOUFSGBDFHVJEFMJOFTXJEHFUTPWFSWJFXJOUSPEVDUJPO ͔ͳΓ۩ମతʹࢦ਑͕ࣔ͞Ε͍ͯΔ

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©︎ 2021 Yahoo Japan Corporation All rights reserved. Ϋϥογϡ΍λΠϜΞ΢τʹىҼ͍ͯ͠Δ͜ͱ͕ଟ͍ Image(uiImage: UIImage(data: try! Data(contentsOf: .imageURL))!) .resizable() .scaledToFill() ௨৴౳ͷ஗ԆͳͲͰgetTimeline͕λΠϜΞ΢τͨ͠Γɺ   ࣮૷ͷ໰୊౳ͰΫϥογϡͨ͠Γ͢Δͱൃੜ͢Δ ΦϑϥΠϯ࣌ʹΫϥογϡͯ͠͠·͏ʂ   Data(contentsOf:_)͸஗͍௨৴؀ڥͷ৔߹ɺ   ਺ेඵεϨουΛࢭΊͯ͠·͍ɺϓϩηε͕མͱ͞Εͯ͠·͏͜ͱ΋... IUUQTEFWFMPQFSBQQMFDPNEPDVNFOUBUJPOGPVOEBUJPOOTEBUBJOJU

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©︎ 2021 Yahoo Japan Corporation All rights reserved. ΤϥʔϋϯυϦϯά͸େࣄ ΢ΟδΣοτ͸Ϣʔβʔʹ࢖͍ํΛઆ໌͠ʹ͍͘ جຊ͸ઃஔ͢Δ͚ͩͰಈ͘Α͏ʹ͠ɺ   ਖ਼͘͠ಈ͍͍ͯͳ͍࣌͸ݪҼΛ఻͑ΒΕΔ࣮૷ʹ͠·͠ΐ͏ ɾઃఆ͕଍Γͳ͍or௨৴Τϥʔ౳ͷ৔߹͸   ɹঢ়گ͝ͱʹద੾ͳରॲํ๏·ͨ͸ݪҼΛදࣔ͢Δ ɾData(contentsOf:_)͸Ͱ͖Δ͚ͩආ͚ͯɺgetTimeline౳Ͱ   ɹURLSessionΛ࢖ͬͯϦϞʔτͷը૾౳Λऔಘ͢Δ ಛʹ

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©︎ 2021 Yahoo Japan Corporation All rights reserved. γεςϜͱΞϓϦͷ࿈ܞ ɾεϚʔτϩʔςʔγϣϯ ɾ΢ΟδΣοτͷఏҊ ɾϩοΫը໘ͰͷఏҊ ɾεϙοτϥΠτͰͷఏҊ ɾSiriγϣʔτΧοτͷఏҊ ɾQuick Note ࠷ۙ͸γεςϜʹΑΔϨίϝϯυ͕ڧԽ͞Ε͍ͯΔ εϚʔτελοΫ NSUserActivity΍Intents ExtensionͰ࣮૷

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©︎ 2021 Yahoo Japan Corporation All rights reserved. ࢀߟจݙ ɾKeeping a Widget Up To Date   ɹɹɾhttps://developer.apple.com/documentation/widgetkit/keeping-a-widget-up-to-date   ɾPrinciples of great widgets   ɹɹɾhttps://developer.apple.com/videos/play/wwdc2021/10048/ ɾAdd con fi guration and intelligence to your widgets ɹɹɾhttps://developer.apple.com/videos/play/wwdc2020/10194 ɾAdd intelligence to your widgets ɹɹɾhttps://developer.apple.com/videos/play/wwdc2021/10049/ ɾDonate intents and expand your app’s presence ɹɹɾhttps://developer.apple.com/videos/play/wwdc2021/10231 ɾDownloading Files in the Background ɹɹɾhttps://developer.apple.com/documentation/foundation/url_loading_system/downloading_ fi les_in_the_background   ɾHuman Interface Guidelines   ɹɹɾhttps://developer.apple.com/design/human-interface-guidelines/widgets/overview/introduction/