ストリーミングはほとんどのブラウザと
Developerアプリで視聴できます。
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Xcodeの基本
編集、デバッグ、コミットし、反復するプロセスを加速。アプリ開発におけるイテレーションを高速化する、Xcodeの各種ツールをご紹介します。開発ワークフローの最適化と強化に役立つヒントやコツもお教えします。
関連する章
- 0:00 - Introduction
- 1:31 - Find the right content
- 1:45 - Filter navigators
- 3:05 - The Find navigator
- 5:43 - Move between files
- 5:47 - The tab bar
- 7:41 - The jump bar
- 8:38 - Tricks for creating new files
- 9:34 - Warnings and error annotations
- 10:42 - Using bookmarks
- 10:56 - Using Mark comments
- 11:15 - Leverage shortcuts
- 11:22 - Open Quickly
- 12:12 - Useful commands and shortcuts
- 14:19 - Code completion
- 15:10 - VIM mode
- 15:25 - Common emacs commands
- 15:43 - Get the most out of git
- 15:47 - Show the last change for a line
- 16:07 - Changes navigator
- 16:55 - Debugging
- 17:21 - Setting breakpoints
- 21:40 - Using the console
- 23:01 - Testing
- 23:51 - Test Navigator
- 26:09 - Running tests
- 27:42 - Using Test plans
- 28:38 - Code coverage
- 29:36 - Explore the Test report
- 30:23 - Distributing your app
- 30:48 - TestFlight
- 31:26 - Archiving
- 33:26 - Explore the Organizer
- 35:41 - Wrap up
リソース
- Forum: Developer Tools & Services
- Including notes for testers with a beta release of your app
- Test coverage
- Xcode updates
関連ビデオ
WWDC24
WWDC23
WWDC22
Tech Talks
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ダウンロードArray
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10:26 - Warning and error annotations
#warning("This is a warning annotation") #error("This is an error annotation")
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10:58 - Mark comments
// MARK: This is a section title
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14:09 - Placeholder
<#placeholder#>
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17:30 - showStarView()
showStarView()
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17:51 - Breakpoint #1
let task = URLSession.shared.dataTask(with: cloudURL, completionHandler: handleUpdatesFromCloud)
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17:53 - Breakpoint #2
videos = loadVideosFromCloud()
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18:17 - Swift error breakpoint
let url = try! getVideoResourceFilePath()
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18:34 - Swift error throw
throw URLLoadError.fileNotFound
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18:59 - Conditional breakpoint
cloudURL.scheme == "https"
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19:18 - Print statement in conditional breakpoint
p "Username is \(cloudURL.user())"
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19:44 - guard clause
guard cloudURLs.allSatisfy({ $0. scheme == "https" }), session.configuration.networkServiceType == .video else { return }
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19:56 - p session
p session
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19:58 - p first part of guard clause
cloudURLs.allSatisfy({ $0. scheme == "https" })
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20:02 - p second part of guard clause
p session.configuration.networkServiceType == .video
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20:11 - Random star rating
var starRating: Int { let randomStarRating = Int.random(n: 1..<5) return randomStarRating }
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21:16 - Converting starRatingPercentage to Int
var starRating: Int { return Int((starRatingPercentage * 5).rounded()) }
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21:46 - print statements for debugging
var releaseDate: Date { print("🎬 Entering func \(#function) in \(#fileID)...") let currentDate = Date() let gregorianCal = Calendar(identifier: .gregorian) var components = DateComponents() components.year = releaseYear print("\(#fileID)@\(#line) \(#function): 📅 releaseYear is \(releaseYear)") if releaseYear == gregorianCal.component(.year, from: currentDate) { components.month = Int(releaseMonth) isNewRelease = true print("\(#fileID)@\(#line) \(#function): 🆕 this is a new release!") } if releaseYear < 2000 { isClassicMovie = true print("\(#fileID)@\(#line) \(#function): 🎻 this one is a classic!") } let calendar = Calendar(identifier: .gregorian) return calendar.date(from: components)! }
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22:09 - os_log statements for debugging
var releaseDate: Date { os_log(.debug, "🎬 Entering func \(#function) in \(#file)...") let currentDate = Date() let gregorianCal = Calendar(identifier: .gregorian) var components = DateComponents() components.year = releaseYear os_log(.info, "📅 releaseYear is \(releaseYear)") if releaseYear == gregorianCal.component(.year, from: currentDate) { components.month = Int(releaseMonth) isNewRelease = true os_log(.info, "🆕 this is a new release!") } if releaseYear < 2000 { isClassicMovie = true os_log(.info, "🎻 this one is a classic!") } let calendar = Calendar(identifier: .gregorian) return calendar.date(from: components)! }
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23:19 - Sample unit tests
import Testing @testable import Destination_Video struct DestinationVideo_UnitTests { private var library = VideoLibrary() // Make sure starRating is returning a percentage @Test func testStarRating() async throws { for video in library.videos { #expect(video.info.starRating > 0) #expect(video.info.starRating <= 5) } } // Make sure the library loads data from the json file @Test func testLibraryLoaded() async throws { #expect(library.videos.count > 1) } }
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24:15 - Sample UI tests
import XCTest final class Destination_VideoUITests: XCTestCase { private var app: XCUIApplication! @MainActor override func setUpWithError() throws { // UI tests must launch the application that they test. app = XCUIApplication() app.launch() // In UI tests it is usually best to stop immediately when a failure occurs. continueAfterFailure = false } @MainActor func testABeach() throws { // Tap the button to load the detail view for the "A Beach" video let aBeachButton = app.buttons["A Beach"].firstMatch aBeachButton.tap() // Make sure it has a Play Video button after going to that view let playButton = app.buttons["Play Video"] XCTAssert(playButton.exists) // Make sure the star rating for this video contains 4 stars to avoid issue we saw previously where it was only a single star because starRating was incorrectly a percentage instead of an Int let theRatingView = app.staticTexts["TheRating"] XCTAssert(theRatingView.label.contains("⭐️⭐️⭐️⭐️⭐️")) } @MainActor func testMainView() throws { // We should have at least 10 buttons for the various videos let buttons = app.buttons XCTAssert(buttons.count >= 10) // Check that the most popular videos have buttons for them for expectedVideo in ["By the Lake", "Camping in the Woods", "Ocean Breeze"] { XCTAssert(app.buttons[expectedVideo].exists) } } @MainActor func testLaunchPerformance() throws { if #available(macOS 10.15, iOS 13.0, tvOS 13.0, watchOS 7.0, *) { // This measures how long it takes to launch your application. measure(metrics: [XCTApplicationLaunchMetric()]) { XCUIApplication().launch() } } } }
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24:19 - Swift Testing tags
@Test(.tags(.stars)) func testStarRating() async throws { for video in library.videos { #expect(video.info.starRating > 0) #expect(video.info.starRating <= 5) } } @Test(.tags(.library)) func testLibraryLoaded() async throws { #expect(library.videos.count > 1) } extension Tag { @Tag static var stars: Tag @Tag static var library: Tag }
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26:35 - Running xcodebuild test from the command line
xcodebuild test -scheme DestinationVideo xcodebuild test -scheme DestinationVideo -testPlan TestAllTheThings xcodebuild test -scheme DestinationVideo -testPlan TestAllTheThings -only-testing "Destination VideoUITests/testABeach"
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29:03 - Missing Code Coverage
func toggleUpNextState(for video: Video) { if !upNext.contains(video) { // Insert the video at the beginning of the list. upNext.insert(video, at: 0) } else { // Remove the entry with the matching identifier. upNext.removeAll(where: { $0.id == video.id }) } // Persist the Up Next state to disk. saveUpNext() }
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29:19 - Code Coverage executed 5 times
init() { // Load all videos available in the library. videos = loadVideos() // The first time the app launches, set the last three videos as the default Up Next items. upNext = loadUpNextVideos(default: Array(videos.suffix(3))) }
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特定のトピックをお探しの場合は、上にトピックを入力すると、関連するトピックにすばやく移動できます。
クエリの送信中にエラーが発生しました。インターネット接続を確認して、もう一度お試しください。