Make iOS app files saved to Documents directory visible in the Files app

README.md

Documentation is very limited online, but apparently you need both Info.plist flags UIFileSharingEnabled and LSSupportsOpeningDocumentsInPlace to get the Documents directory visible in the Files app in the "On My iPhone" section.

Info.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	
  <key>UIFileSharingEnabled</key>
  <true/>
	
  <key>LSSupportsOpeningDocumentsInPlace</key>
  <true/>
	
</dict>
</plist>

test.swift

import Foundation

func writeTextToFile() {
    // The text you want to write
    let text = "Hello, world!"
    
    // Getting the URL of the Documents directory
    if let documentsDirectory = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first {
        // Creating the full URL by appending the text file name
        let fileURL = documentsDirectory.appendingPathComponent("MyTextFile.txt")
        
        do {
            // Writing the text to the file
            try text.write(to: fileURL, atomically: true, encoding: String.Encoding.utf8)
            print("Successfully wrote text to file at \(fileURL)")
        } catch {
            // Handle the error
            print("An error occurred: \(error)")
        }
    }
}