Merge pull request #2626 from stuartbreckenridge/widget-performance
Widget Performance
This commit is contained in:
Maurice Parker
GitHub
commit
63d7e179e8
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@ -13,17 +13,34 @@ import UIKit
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import RSCore
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import Articles
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@available(iOS 14, *)
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struct WidgetDataEncoder {
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public final class WidgetDataEncoder {
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private static var log = OSLog(subsystem: Bundle.main.bundleIdentifier!, category: "Application")
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private let log = OSLog(subsystem: Bundle.main.bundleIdentifier!, category: "Application")
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static func encodeWidgetData(refreshTimeline: Bool = true) {
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private var backgroundTaskID: UIBackgroundTaskIdentifier!
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private lazy var appGroup = Bundle.main.object(forInfoDictionaryKey: "AppGroup") as! String
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private lazy var containerURL = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: appGroup)
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private lazy var dataURL = containerURL?.appendingPathComponent("widget-data.json")
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static let shared = WidgetDataEncoder()
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private init () {}
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@available(iOS 14, *)
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func encodeWidgetData() throws {
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os_log(.debug, log: log, "Starting encoding widget data.")
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do {
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// Unread Articles
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let unreadArticles = try SmartFeedsController.shared.unreadFeed.fetchArticles().sorted(by: { $0.datePublished ?? .distantPast > $1.datePublished ?? .distantPast })
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let unreadArticles = Array(try SmartFeedsController.shared.unreadFeed.fetchArticles()).sortedByDate(.orderedDescending)
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let starredArticles = Array(try SmartFeedsController.shared.starredFeed.fetchArticles()).sortedByDate(.orderedDescending)
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let todayArticles = Array(try SmartFeedsController.shared.todayFeed.fetchUnreadArticles()).sortedByDate(.orderedDescending)
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var unread = [LatestArticle]()
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var today = [LatestArticle]()
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var starred = [LatestArticle]()
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for article in unreadArticles {
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let latestArticle = LatestArticle(id: article.sortableArticleID,
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feedTitle: article.sortableName,
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@ -32,13 +49,9 @@ struct WidgetDataEncoder {
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feedIcon: article.iconImage()?.image.dataRepresentation(),
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pubDate: article.datePublished!.description)
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unread.append(latestArticle)
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if unread.count == 7 { break }
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}
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// Starred Articles
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let starredArticles = try SmartFeedsController.shared.starredFeed.fetchArticles().sorted(by: { $0.datePublished ?? .distantPast > $1.datePublished ?? .distantPast })
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var starred = [LatestArticle]()
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for article in starredArticles {
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let latestArticle = LatestArticle(id: article.sortableArticleID,
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feedTitle: article.sortableName,
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@ -50,9 +63,6 @@ struct WidgetDataEncoder {
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if starred.count == 7 { break }
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}
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// Today Articles
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let todayArticles = try SmartFeedsController.shared.todayFeed.fetchUnreadArticles().sorted(by: { $0.datePublished ?? .distantPast > $1.datePublished ?? .distantPast })
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var today = [LatestArticle]()
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for article in todayArticles {
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let latestArticle = LatestArticle(id: article.sortableArticleID,
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feedTitle: article.sortableName,
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@ -72,26 +82,39 @@ struct WidgetDataEncoder {
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todayArticles:today,
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lastUpdateTime: Date())
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let encodedData = try JSONEncoder().encode(latestData)
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os_log(.debug, log: log, "Finished encoding widget data.")
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let appGroup = Bundle.main.object(forInfoDictionaryKey: "AppGroup") as! String
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let containerURL = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: appGroup)
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let dataURL = containerURL?.appendingPathComponent("widget-data.json")
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if FileManager.default.fileExists(atPath: dataURL!.path) {
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try FileManager.default.removeItem(at: dataURL!)
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os_log(.debug, log: log, "Removed widget data from container.")
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}
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if FileManager.default.createFile(atPath: dataURL!.path, contents: encodedData, attributes: nil) {
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os_log(.debug, log: log, "Wrote widget data to container.")
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if refreshTimeline == true {
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WidgetCenter.shared.reloadAllTimelines()
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DispatchQueue.global().async { [weak self] in
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guard let self = self else { return }
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self.backgroundTaskID = UIApplication.shared.beginBackgroundTask (withName: "com.ranchero.NetNewsWire.Encode") {
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UIApplication.shared.endBackgroundTask(self.backgroundTaskID!)
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self.backgroundTaskID = .invalid
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}
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let encodedData = try? JSONEncoder().encode(latestData)
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os_log(.debug, log: self.log, "Finished encoding widget data.")
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if self.fileExists() {
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try? FileManager.default.removeItem(at: self.dataURL!)
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os_log(.debug, log: self.log, "Removed widget data from container.")
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}
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if FileManager.default.createFile(atPath: self.dataURL!.path, contents: encodedData, attributes: nil) {
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os_log(.debug, log: self.log, "Wrote widget data to container.")
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WidgetCenter.shared.reloadAllTimelines()
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UIApplication.shared.endBackgroundTask(self.backgroundTaskID!)
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self.backgroundTaskID = .invalid
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} else {
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UIApplication.shared.endBackgroundTask(self.backgroundTaskID!)
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self.backgroundTaskID = .invalid
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}
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}
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} catch {
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os_log(.error, "%@", error.localizedDescription)
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}
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}
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private func fileExists() -> Bool {
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FileManager.default.fileExists(atPath: dataURL!.path)
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}
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}
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@ -9,11 +9,10 @@ There are _currently_ seven widgets available for iOS:
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## Widget Data
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The widget does not have access to the parent app's database. To surface data to the widget, a small amount of article data is encoded to JSON (see `WidgetDataEncoder`) and saved to the AppGroup container.
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Widget data is written at three points:
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Widget data is written at two points:
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1. After applicationDidFinishLaunching
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2. As part of a background refresh
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3. When the scene enters the background
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1. As part of a background refresh
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2. When the scene enters the background
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The widget timeline is refreshed—via `WidgetCenter.shared.reloadAllTimelines()`—after each of the above.
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@ -115,11 +115,6 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterD
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syncTimer!.update()
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#endif
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if #available(iOS 14, *) {
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WidgetDataEncoder.encodeWidgetData(refreshTimeline: false)
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}
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return true
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}
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@ -382,7 +377,7 @@ private extension AppDelegate {
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AccountManager.shared.refreshAll(errorHandler: ErrorHandler.log) { [unowned self] in
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if !AccountManager.shared.isSuspended {
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if #available(iOS 14, *) {
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WidgetDataEncoder.encodeWidgetData()
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try? WidgetDataEncoder.shared.encodeWidgetData()
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}
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self.suspendApplication()
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os_log("Account refresh operation completed.", log: self.log, type: .info)
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@ -66,7 +66,7 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
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func sceneDidEnterBackground(_ scene: UIScene) {
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if #available(iOS 14, *) {
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WidgetDataEncoder.encodeWidgetData()
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try? WidgetDataEncoder.shared.encodeWidgetData()
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}
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ArticleStringFormatter.emptyCaches()
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appDelegate.prepareAccountsForBackground()
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