Why I Chose Core Data Over SwiftData for Hive Notes

SwiftData is Apple's modern take on local persistence. It has a cleaner syntax, tighter SwiftUI integration, and less boilerplate. Core Data is the two-decade-old workhorse. For Hive Notes and its 15-entity data model, I needed reliability over novelty. Sometimes boring technology is exactly what you need.

in Core Data

The Technical Debt AI Migration Tools Leave Behind

Beyond Syntax: What AI Misses in Swift Migrations

Six months after your AI-assisted migration, the app is stable. The crashes are fixed. Production is humming along. But your development velocity has slowed to a crawl. Every new feature takes longer to implement than it should. Your team complains that the code "feels wrong."

in Programming

Why AI-Migrated Code Compiles But Breaks in Production

Beyond Syntax: What AI Misses in Swift Migrations

The app launches perfectly. The test suite shows all green. Your code review finds nothing alarming. Three days after shipping to production, users start reporting that their carefully typed messages are getting truncated at seemingly random points. This is the invisible danger of AI-assisted migrations: the code compiles and runs successfully most of the time, but bugs surface with specific data that exposes semantic mismatches between how Objective-C and Swift handle runtime behavior.

in Programming

The Memory Management Mistakes AI Makes in Swift Migrations

Beyond Syntax: What AI Misses in Swift Migrations

Picture this scenario: a freshly migrated app is in production, users are happy, and then the crash reports start rolling in. Not sporadically. Consistently. Every user who tries to view their profile is welcomed with a crash.

in Programming

Runtime Issue Breakpoints

Debugging Apps with Xcode 15

A few years ago, Apple added support for detecting potential issues at runtime. Runtime issues show up as purple issues in Xcode's Issues Navigator. They are easy to miss or ignore, but they are just as important as errors at compile time.

in Xcode

Exception Breakpoints

Debugging Apps with Xcode 15

In the previous video, we used the Swift error breakpoint to suspend the process of the app if an error is thrown in your code or the code of a library or framework. The exception breakpoint works in a similar way. The difference, as you may have guessed, is that the debugger suspends the process of the app if an exception is thrown.

in Xcode

Swift Error Breakpoints

Debugging Apps with Xcode 15

Error handling is a key aspect of the Swift language. In several ways errors in Swift are similar to exceptions in Objective-C and C++. Both errors and exceptions indicate that something didn't go as planned. The Swift error and exception breakpoints are useful to debug scenarios in which errors or exceptions are thrown.

in Xcode

Symbolic Breakpoints

Debugging Apps with Xcode 15

Earlier in this course, we briefly explored the types of breakpoints you can use in Xcode. In the previous video, we focused on file and line breakpoints. This video zooms in on symbolic breakpoints.

in Xcode

Managing and Editing Breakpoints

Debugging Apps with Xcode 15

When you are debugging a complex problem, you quickly end up with dozens of breakpoints scattered across your project or workspace. I would like to start this video by showing you how you can stay on top of the breakpoints in a project or workspace.

in Xcode

Stepping through Code With Breakpoints

Debugging Apps with Xcode 15

In the previous video, you learned what a breakpoint is and what types of breakpoints Xcode supports. In this video, we step through code using a breakpoint and the debug bar we explored earlier in this course.

in Xcode

Debugging with Breakpoints

Debugging Apps with Xcode 15

Breakpoints are indispensable for debugging problems in a software project. Debugging an app with breakpoints can seem complex at first, but it isn't difficult once you understand what is going on. While the underlying concept of debugging with breakpoints is simple, you can make it as complex as you want to fit your needs.

in Xcode

Exploring Xcode's Debugging Tools

Debugging Apps with Xcode 15

Xcode offers developers a mature development environment with a powerful debugger. Under the hood, Xcode's debugging tools take advantage of LLDB, the debugger of the LLVM project. It isn't necessary to have a deep understanding of LLDB or LLVM to make use of Xcode's debugging tools, but it certainly doesn't hurt to become familiar with LLDB or LLVM.

in Xcode