Скачать или смотреть How to Create and Write to a Subdirectory in Swift 5

Struggling to write a text file to a subdirectory of your Documents folder in Swift 5? This guide explains how to do it successfully, highlighting common issues and their fixes.
---
This video is based on the question https://stackoverflow.com/q/69576739/ asked by the user 'ICL1901' ( https://stackoverflow.com/u/542019/ ) and on the answer https://stackoverflow.com/a/69576948/ provided by the user 'Joakim Danielson' ( https://stackoverflow.com/u/9223839/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Problem creating and writing a subdirectory in Swift 5

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
How to Create and Write to a Subdirectory in Swift 5: A Step-by-Step Guide

If you've ever faced difficulties writing a text file to a subdirectory of your Documents folder in Swift 5, you're not alone. Many developers encounter this problem and receive console errors such as "No such file or directory." In this guide, we'll explore the solution to this common issue and provide you with a comprehensive guide to creating and writing files in a subdirectory efficiently.

Understanding the Problem

When trying to create a directory and write to a file within it, you might get a console message that reads:

[[See Video to Reveal this Text or Code Snippet]]

This error indicates that the directory you’re trying to access or create doesn’t exist, or that there's an issue with your directory path.

Breaking Down the Solution

To solve this problem, we will focus on a few key areas:

1. Directory Creation

The process to create a subdirectory using Swift's FileManager typically involves:

Accessing the documents directory.

Creating a new directory within that path.

In your original code, you mistakenly checked whether the directory exists before trying to create it. However, when using createDirectory(at:withIntermediateDirectories:attributes:) with withIntermediateDirectories set to true, it won’t throw an error if the directory already exists.

2. Improved Code Implementation

Let’s refine your existing function for saving a file to enhance its functionality. Here’s an improved version of your saveToDirectory function:

[[See Video to Reveal this Text or Code Snippet]]

3. Using the Function

You can use the improved saveToDirectory function within your button action method like:

[[See Video to Reveal this Text or Code Snippet]]

Summary

By removing the existence check for the directory, you can streamline folder creation and avoid unnecessary errors. To recap, follow these steps:

Use createDirectory with withIntermediateDirectories set to true without an existence check.

Ensure the content you want to save is not empty.

Use proper error handling to troubleshoot any issues that arise during file operations.

With this guide, you should now have a clearer understanding of how to create and manipulate subdirectories and files in Swift 5 effectively. Happy coding!