Book Image

An iOS Developer's Guide to SwiftUI

By : Michele Fadda
Book Image

An iOS Developer's Guide to SwiftUI

By: Michele Fadda

Overview of this book

– SwiftUI transforms Apple Platform app development with intuitive Swift code for seamless UI design. – Explore SwiftUI's declarative programming: define what the app should look like and do, while the OS handles the heavy lifting. – Hands-on approach covers SwiftUI fundamentals and often-omitted parts in introductory guides. – Progress from creating views and modifiers to intricate, responsive UIs and advanced techniques for complex apps. – Focus on new features in asynchronous programming and architecture patterns for efficient, modern app design. – Learn UIKit and SwiftUI integration, plus how to run tests for SwiftUI applications. – Gain confidence to harness SwiftUI's full potential for building professional-grade apps across Apple devices.
Table of Contents (25 chapters)
Free Chapter
1
Part 1: Simple Views
5
Part 2: Scrollable Views
8
Part 3: SwiftUI Navigation
11
Part 4: Graphics and Animation
14
Part 5: App Architecture
17
Part 6: Beyond Basics

The SQLite data file

When you compile an iOS app and execute it in the simulator, the SQLite file containing the storage for Core Data gets copied to the sandbox folder belonging to the application. This file physically contains the database objects and gets written to persist data. On some occasions, SQLite will also use additional temp files and, if write ahead is enabled, a WAL file for data not already persisted to the main .sqlite file.

You need to know the path of the sandbox directory, in order to access the .sqlite database file.

There are a many few ways to achieve this; the simplest is halting the execution of the app on a breakpoint and executing the following command on the debug console:

po NSHomeDirectory()

po stands for print object, and NSHomeDirectory() is an Objective-C function that returns the path to the sandbox folder of the app. You can open this folder with the finder, using its menu’s Go/Go to folder.

Your .sqlite file will be found inside...