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Building 5 Calls for iOS
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Ben Scheirman
April 27, 2017
Programming
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96
Building 5 Calls for iOS
A talk I gave in Barcelona. About 1/3 political, 1/3 technical, and 1/3 tactical.
Ben Scheirman
April 27, 2017
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Transcript
Building
Ben Scheirman benscheirman.com @subdigital
ficklebits.com
260+ screencasts on iOS development nsscreencast.com
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What do we do?
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What do we do?
What can we do?
What can I do?
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United States Congress House of Representatives Senate 435 Members 100
Members
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5calls.org
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Launch ASAP
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Wanted it to be a GOOD iOS app
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github.com/5calls/ios
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Let people help you!
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Built on NSOperation Storyboards UITableView CocoaPods Vibrancy / Blur Dynamic
Type Custom UIViewController Containment Local Push Notifications Fastlane Pantry Swift 3 Universal app (split view) Fabric / Crashlytics R.swift Buddybuild
NSOperations class BaseOperation : Operation { override var isAsynchronous: Bool
{ return true } private var _executing = false { willSet { willChangeValue(forKey: "isExecuting") } didSet { didChangeValue(forKey: "isExecuting") } } override var isExecuting: Bool { return _executing } private var _finished = false { willSet { willChangeValue(forKey: "isFinished") } didSet { didChangeValue(forKey: "isFinished") } } override var isFinished: Bool { return _finished } class BaseOperation : Operation { func execute() { fatalError("You must override this") } func finish() { _executing = false _finished = true } }
NSOperations class FetchIssuesOperation : BaseOperation { let location: UserLocation? init(location:
UserLocation?) { self.location = location } ... }
NSOperations override func execute() { let task = session.dataTask(with: url)
{ (data, response, error) in if let e = error { print("Error fetching issues: \ (e.localizedDescription)”) } else { self.handleResponse(data: data, response: response) } self.finish() } task.resume() }
NSOperations self.issuesList = IssuesList(dictionary: json)
NSOperations func fetchIssues(completion: @escaping (IssuesLoadResult) -> Void) { let operation
= FetchIssuesOperation(location: userLocation) operation.completionBlock = { [weak self, weak operation] in if let issuesList = operation?.issuesList { self?.issuesList = issuesList DispatchQueue.main.async { completion(.success) } } else { // … } } OperationQueue.main.addOperation(operation) }
NSOperations FetchIssuesOperation FetchStatsOperation ReportOutcomeOperation
NSOperations Composable Dependencies Cancellable Control Concurrency Quality of Service
NSOperations https://developer.apple.com/videos/play/wwdc2015/226/ WWDC Session 226 - Advanced NSOperations http://nsscreencast.com/ NSScreencast
Episodes 175-177, 180
Dynamic Type Dynamic Type Dynamic Type
Using a custom font made this more difficult
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Getting Dynamic Type to work with UITableViewCells Define height with
constraints
Getting Dynamic Type to work with UITableViewCells
Respond to Dynamic Type Changes UIContentSizeCategoryDidChangeNotification adjustsFontsForContentSizeCategory iOS 10.0
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Getting dynamic fonts in code headline.font = UIFont.preferredFont( forTextStyle: UIFontTextStyleHeadline)
subhead.font = UIFont.preferredFont( forTextStyle: UIFontTextStyleSubheadline) body.font = UIFont.preferredFont( forTextStyle: UIFontTextStyleBody)
https://github.com/nickoneill/Pantry if let available: Bool = Pantry.unpack("promptAvailable") { completion(available: available)
} else { anExpensiveOperationToDetermineAvailability({ (available) -> () in Pantry.pack(available, key: "promptAvailable", expires: .Seconds(60 * 10)) completion(available: available) }) }
var autopersist: String? { set { if let newValue =
newValue { Pantry.pack(newValue, key: "autopersist") } } get { return Pantry.unpack("autopersist") } } ...later... autopersist = "Hello!" // restart app, reboot phone, etc print(autopersist) // Hello!
SIMPLE MODEL OBJECT…
CONFORM TO STORABLE
USAGE IS REALLY SIMPLE:
CAREFUL YOU DON’T STORE USER DATA IN CACHES
R.swift
R.swift let icon = UIImage(named: "settings-icon") let icon = R.image.settingsIcon()
becomes…
R.swift let viewController = CustomViewController(nibName: "CustomView", bundle: nil) let viewController
= CustomViewController(nib: R.nib.customView) becomes…
R.swift let string = String(format: NSLocalizedString("welcome.withName", comment: ""), locale:
NSLocale.current, "Arthur Dent") let string = R.string.localizable.welcomeWithName("Arthur Dent") becomes…
R.swift
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# Fastfile desc "Runs all the tests" lane :test
do scan(workspace: workspace, scheme: scheme) end
$ fastlane test
desc "Increments build number" lane :increment_build do increment_build_number(xcodeproj: xcodeproj) end
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desc "Submit a new Beta Build to Apple TestFlight" lane
:beta do ensure_git_status_clean increment_build commit_version_bump badge(shield: "Version-#{app_version}-red", shield_no_resize: true) gym(workspace: workspace, scheme: scheme) changelog = prompt_for_release_notes pilot(changelog: changelog) git_commit(path: 'fastlane/changelog.txt', message: 'Updated changelog.txt') reset_git_repo(files: app_icon_files) add_git_tag push_git_tags end
desc "Submit a new Beta Build to Apple TestFlight" lane
:beta do ensure_git_status_clean increment_build commit_version_bump badge(shield: "Version-#{app_version}-red", shield_no_resize: true) gym(workspace: workspace, scheme: scheme) changelog = prompt_for_release_notes pilot(changelog: changelog) git_commit(path: 'fastlane/changelog.txt', message: 'Updated changelog.txt') reset_git_repo(files: app_icon_files) add_git_tag push_git_tags end
desc "Submit a new Beta Build to Apple TestFlight" lane
:beta do ensure_git_status_clean increment_build commit_version_bump badge(shield: "Version-#{app_version}-red", shield_no_resize: true) gym(workspace: workspace, scheme: scheme) changelog = prompt_for_release_notes pilot(changelog: changelog) git_commit(path: 'fastlane/changelog.txt', message: 'Updated changelog.txt') reset_git_repo(files: app_icon_files) add_git_tag push_git_tags end
desc "Submit a new Beta Build to Apple TestFlight" lane
:beta do ensure_git_status_clean increment_build commit_version_bump badge(shield: "Version-#{app_version}-red", shield_no_resize: true) gym(workspace: workspace, scheme: scheme) changelog = prompt_for_release_notes pilot(changelog: changelog) git_commit(path: 'fastlane/changelog.txt', message: 'Updated changelog.txt') reset_git_repo(files: app_icon_files) add_git_tag push_git_tags end
desc "Submit a new Beta Build to Apple TestFlight" lane
:beta do ensure_git_status_clean increment_build commit_version_bump badge(shield: "Version-#{app_version}-red", shield_no_resize: true) gym(workspace: workspace, scheme: scheme) changelog = prompt_for_release_notes pilot(changelog: changelog) git_commit(path: 'fastlane/changelog.txt', message: 'Updated changelog.txt') reset_git_repo(files: app_icon_files) add_git_tag push_git_tags end
def prompt_for_release_notes `open changelog.txt -W` File.read('changelog.txt') end
desc "Submit a new Beta Build to Apple TestFlight" lane
:beta do ensure_git_status_clean increment_build commit_version_bump badge(shield: "Version-#{app_version}-red", shield_no_resize: true) gym(workspace: workspace, scheme: scheme) changelog = prompt_for_release_notes pilot(changelog: changelog) git_commit(path: 'fastlane/changelog.txt', message: 'Updated changelog.txt') reset_git_repo(files: app_icon_files) add_git_tag push_git_tags end
desc "Submit a new Beta Build to Apple TestFlight" lane
:beta do ensure_git_status_clean increment_build commit_version_bump badge(shield: "Version-#{app_version}-red", shield_no_resize: true) gym(workspace: workspace, scheme: scheme) changelog = prompt_for_release_notes pilot(changelog: changelog) git_commit(path: 'fastlane/changelog.txt', message: 'Updated changelog.txt') reset_git_repo(files: app_icon_files) add_git_tag push_git_tags end
Automatic Screenshots # Snapfile devices([ "iPhone 7" "iPhone 7 Plus",
"iPhone SE", "iPad Pro (12.9 inch)" ]) languages(["en-US"]) workspace "./FiveCalls/FiveCalls.xcworkspace" scheme "FiveCallsUITests" output_directory "./screenshots" clear_previous_screenshots true launch_arguments(["-hasShownWelcomeScreen false"])
Automatic Screenshots
Deterministic Data? How do we ALWAYS choose the same item,
despite the server changing?
Stubs! { “issues”: [ … ] } issues.json INTERNET
GET /issues UI TESTING? YES NO
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SeededURLSession SeededDataTask dataTask(with:completion:)
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HOST APP TESTS ENV
TESTS
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The Stats
Week 1 6,300 downloads
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Month 1 76,916 downloads
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All Time (4/21/2017) 105,000 downloads
44.2k Monthly Active Users 2.4k Daily Active Users
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Over 1 million calls to congress
Final Thoughts
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Track Useful Analytics *but don’t be scummy
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REDMAP
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Software Development is an incredibly valuable skill.
Software Development is an incredibly valuable skill. Use your powers
for good, not evil.
Ben Scheirman benscheirman.com @subdigital nsscreencast.com ¡Gracias!