Launch Control

A focused daily planner for iPhone, built with SwiftUI and SwiftData. Plan what you're getting done today, check things off with a swipe, keep a streak going, and see how your week and month are tracking. You can also do it hands-free through Siri and Shortcuts.

Case study: How Launch Control is designed and built on my portfolio, covering the architecture, code decisions and trade-offs.

The repository is named Daily-Protocol. The app and Xcode project are named Launch Control.

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Features

Three screens, one swipe apart

The app is a vertical pager. Swipe up or down to move between screens. The pager only takes over once the current screen's content has scrolled to its edge, so it doesn't fight with scrolling inside a screen.

Screen	What it does
Protocol	Today's events, the date, and your current 🔥 streak
Calendar	Pick any date to see, add, and manage its events
Completion	Weekly bar chart of completed vs. total events, plus a 4-week monthly view and remaining-event counts

Events

• Add events with an optional time and reminder
• Swipe right to mark an event complete and swipe left to undo it
• Long-press to add notes (a dot shows on events that have notes)
• Double-tap to set a category: Work, Health, Education, Personal, or Social
• Delete with a confirmation alert

Streaks

StreakCalculator counts consecutive days that have at least one completed event. If you haven't completed anything yet today, the count starts from yesterday, so your streak doesn't reset to 0 the moment a new day starts.

Reminders with a "Mark Complete" action

Reminders are scheduled with UNCalendarNotificationTrigger and use a custom notification category. Tapping Mark Complete on the notification updates the event in SwiftData without opening the app.

Siri & Shortcuts (App Intents)

Intent	Example phrase
Add Event for Today	"Add event for today in Launch Control"
Mark Event Complete	"Mark [event] done in Launch Control"
Remove Event	"Remove [event] in Launch Control"
Today's Events	"What do I have today in Launch Control"

Events are exposed to Siri as an AppEntity with an EntityQuery / EntityStringQuery, so Siri can suggest today's open events and search events by title.

Settings

• Appearance: System, Light, or Dark
• Action button side: puts the floating add button on the left or the right for one-handed use

Accessibility

• Full VoiceOver support: custom labels, hints, values, and named actions (mark complete, edit notes, choose category) so every gesture also works without gestures
• Pages that aren't on screen are removed from the accessibility tree, and the pager responds to VoiceOver's three-finger scroll
• Respects Reduce Motion

Privacy

All data stays on the device. The app has no accounts, no network calls, and no analytics. It ships with a PrivacyInfo.xcprivacy privacy manifest that declares no collected data types.

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Architecture

SwiftUI Views ──► EventEditor (editing state + actions) ──► SwiftData ModelContext
      │                                                         ▲
      └── CompletionCalculator / StreakCalculator (pure logic)  │
                                                                │
App Intents (Siri) ──► IntentContainer (actor) ─────────────────┤
Notification action ──► EventNotificationDelegate ──────────────┘
                     Shared store in the App Group: group.AA.Launch-Control

• One shared SwiftData store. The app, the App Intents, and the notification delegate all open the same LaunchControl.store file in an App Group container, so changes made through Siri or a notification show up in the app right away.
• Actor-isolated container for intents. App Intents call EntityQuery methods outside the main actor. A private IntentContainer actor creates the ModelContainer once and safely hands it to any async context.
• Self-healing persistence. If the store fails to load, the app logs the error, deletes the store files, and tries again. If that also fails, it falls back to an in-memory store instead of crashing.
• Pure, testable logic. Streaks, week and month ranges, and completion counts live in stateless enums that take an injectable Calendar and reference date.

Project structure

Launch Control/
├── Launch_ControlApp.swift      # App entry, ModelContainer setup + recovery
├── ContentView.swift            # Vertical pager across the three screens
├── SiriIntents.swift            # App Intents, AppEntity, EntityQuery, Shortcuts
├── Models/
│   ├── Event.swift              # SwiftData @Model
│   ├── EventEditor.swift        # Add / edit / complete / delete logic
│   ├── StreakCalculator.swift
│   ├── CompletionCalculator.swift
│   ├── AppearanceMode.swift
│   └── ActionButtonSide.swift
├── Features/
│   ├── Protocol/                # Today
│   ├── Calendar/
│   ├── Completion/              # Weekly + monthly views
│   └── Settings/
└── Components/                  # Sheets, buttons, notifications, colors, pager helpers
Launch ControlTests/             # Unit tests (Swift Testing)
Launch ControlUITests/           # UI tests (XCUITest)

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Testing

• Unit tests use the Swift Testing framework (@Test). They cover EventEditor, event display formatting, appearance and button-side settings, and the pager's scroll-edge logic.
• UI tests use XCUITest and cover the main flows: adding and deleting events, adding notes, adding events from the calendar, switching between weekly and monthly views, settings that persist across relaunches, and accessibility of off-screen pages.
• When launched with -uiTestReset, the app wipes its SwiftData store and UserDefaults so every UI test starts from the same empty state.

Run them in Xcode with ⌘U, or from the command line:

xcodebuild test \
  -project "Launch Control.xcodeproj" \
  -scheme "Launch Control" \
  -destination "platform=iOS Simulator,name=iPhone 17"

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Getting Started

Requirements

• Xcode 26 or later
• iOS 26.2 or later

Run it

git clone https://github.com/arturoa925/Daily-Protocol.git
cd Daily-Protocol
open "Launch Control.xcodeproj"

1. Select the Launch Control target and set your own Team under Signing & Capabilities.
2. Change the bundle identifier (AA.Launch-Control) and the App Group (group.AA.Launch-Control) to IDs your team owns, and update the App Group ID in Launch_ControlApp.swift and SiriIntents.swift to match.
3. Build and run with ⌘R.

Siri phrases can take a moment to register after the first install. You can also find the actions in the Shortcuts app.

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Tech Stack

SwiftUI · SwiftData · App Intents · UserNotifications · Swift Concurrency (actors) · OSLog · Swift Testing · XCUITest

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Author

Arturo Ayala: GitHub · LinkedIn