Author: Traveller
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iOS App Launch Time – React Native Sample Project
Measure iOS app launch time for React Native Expo projects. Set up UI Testing Bundle with XCTest to benchmark cold and warm launch performance on real devices.
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Useful GitHub Actions for iOS CI/CD
Practical GitHub Actions workflows for iOS development. Trigger builds from PR comments, share IPA files, and automate CI/CD for your Swift projects.
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How to install IPA file on iPhone device
To install IPA file on iPhone device, use Apple Configurator app
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iOS Security: Certificates, Code Signing, ATS, and CryptoKit
Security topics are common interview question. I summarized what is Certificate, Provisioning, Code Signing, App Transport Security and CryptoKit.
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Laid Off at 40: My Senior iOS Interviews with Google, Meta, and Amazon
My experience interviewing for senior iOS roles at Google, Meta, and Amazon after being laid off at 40, including preparation and interview rounds.
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Core Animation Basics
Core Animation fundamentals for iOS developers. Learn how bitmap-based rendering, layers, and animation work together to create smooth visual effects in your apps.
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Socket Programming using Vapor and URLSessionWebSocketTask
Build a real-time Swift chat app with a Vapor WebSocket server, URLSessionWebSocketTask client, and shared Xcode workspace.
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iOS, Useful Bit Manipulation Techniques
Learn practical bit manipulation in Swift, including AND, OR, XOR, shifts, bit checks, counting set bits, and reversing bits.
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Learn Mobile System Design from Apple’s UIKit Samples
Learn mobile system design from Apple’s UIKit sample projects, including state restoration, data management, and multi-window architecture.
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