Developer__Rob's profile picture. iOS indie dev 🚀 Building ComingUp in public | Sharing every win, mistake, and lesson along the way.

Robert

@Developer__Rob

iOS indie dev 🚀 Building ComingUp in public | Sharing every win, mistake, and lesson along the way.

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The latest version of ComingUp just hit the App Store! New features: •Add attachments to events (tickets, photos, notes) •Share events privately via iCloud (CloudKit sharing) •Improved design + performance throughout #indiedev #buildinpublic apps.apple.com/gb/app/comingu…


Robert 已轉發

🏆 Congratulations to the winners of the 2025 App Store Awards! 🏆 Let’s celebrate these groundbreaking apps and games from around the world. apple.co/ASA2025 #AppStoreAwards2025


Swift Interview Tip💡 #14 async/await in plain English Write async code that looks like sync code. No more callback hell. Just clean, readable flow.

Developer__Rob's tweet image. Swift Interview Tip💡 #14

async/await in plain English  

Write async code that looks like sync code.  

No more callback hell. Just clean, readable flow.

Always feel like I wish away the week to get back to my side projects..


Swift Interview Tip💡 .task {} vs .onAppear {} .task: async-safe, cancels automatically .onAppear: sync only, runs once Prefer .task for async work in SwiftUI.


Swift Interview Tip l💡 @ EnvironmentObject: Inject shared data through your SwiftUI hierarchy. Perfect for app-wide settings, sessions, or themes. Set once, access anywhere.


Was going to try and use TikTok for marketing my app. Truthfully not even sure where to start / if it's worth it. Anyone had success with it?


Swift Interview Tip 💡 State vs Binding in SwiftUI 🧩 State owns the data. Binding references someone else’s state. Ownership is everything in SwiftUI.


Swift Interview Tip💡 Codable in one line: “Easiest way to turn JSON into Swift types (and back).” Codable = Encodable + Decodable.


New version of ComingUp released this morning, just some bugs fixes and an app icon change. feel free to check it out: apps.apple.com/gb/app/comingu…


Swift Interview Tip 💡 #8 map, compactMap, flatMap — the trio map: transform each element compactMap: transform + remove nil flatMap: flatten nested arrays Same concept, different depth. #swift #swifttips #swiftdevelopers


Time for the weekend. Continuing to build the initial UI for my new app Rehearse. Hoping to share some images of it soon.


Swift Interview Tip 💡 #7 @ MainActor — the concurrency safety net 🧠 Guarantees code runs on the main thread. Use it anywhere you touch UI in SwiftUI. Cleaner than DispatchQueue.main.async.


Swift Interview Tip💡#6 `@ escaping` closures — simplified 👇 Non-escaping = runs before the function ends Escaping = runs after (e.g. async callbacks) If it’s stored or called later → mark it @ escaping. #Swift #swiftdevelopers


Swift Interview Tip💡#5 lazy properties explained 💤 They’re initialized only when first used. Perfect for heavy setup like images or network managers. Swift only does the work when you actually need it. #Swift #swiftdevelopers


Swift Interview Tip💡#4 Weak vs Strong vs Unowned strong = keeps it alive weak = breaks retain cycles, become nil unowned = no retain, assumes alive Use weak for delegates. Always.


Swift Interview Tip💡#3 let vs var inside structs. If your struct is declared with let, all properties become immutable — even if they’re var. let locks the whole struct.


Starting my second indie app: Rehearse — built in SwiftUI. This time, I'm going to try and share more of my journey through the build process.


Swift Interview Tip💡 #2 When should you use a class instead of a struct? 🤔 ✅ Need inheritance ✅ Shared mutable state ✅ Identity matters If not… stick with structs. Default to value types.


United States 趨勢

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