如何在我的自定义目录中创建文件夹并提前在 /myapp/documents 中创建一个文件夹（当我构建应用程序时）？

Question

I'm making a vocabulary application for iOS and ipadOS. The structure is

Folders(IELTS, TOPFL, etc) -> Vocabularies(Cambridge IELTS, Oxford IELTS, etc) -> words(play, sleep, etc)

The Vocabularies file will be .txt file, so I can make it like

["word1" : "meaning1"], ["word1", "meaning2"], ....

And I want to make Folders file when users install the app.

So it would be my app/documents/folders

But when I install the app, it becomes my app/documents/, no folders.

Is there something like install script on iOS?

And the second question is when I create folder

let paths = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)
let documentsDirectory = paths[0]
let docURL = URL(string: documentsDirectory)!
let dataPath = docURL.appendingPathComponent(String(AddNewFolder.text!)) // AddNewFolder is a Text Field
if !FileManager.default.fileExists(atPath: dataPath.absoluteString) {
    do {
        try FileManager.default.createDirectory(atPath: dataPath.absoluteString, withIntermediateDirectories: true, attributes: nil)
    } catch {
        print(error.localizedDescription);
    }
}

How can I create new folder in myapp/documents/folders, not /myapp/documents?

Third question is about UIKit vs SwiftUI. What is faster and what is easier to use?

And in SwiftUI, there are SwiftUI App and UIKit delegate and what is UIKit delegate?(Does that mean that I use UIKit in SwiftUI?)

Answer 1

I googled a whole week. The answer is

// make subdirectory "vocabFolder" if it doesn't exist
let VocabFolderPath = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0].appendingPathComponent("vocabFolder")

if !FileManager.default.fileExists(atPath: VocabFolderPath.absoluteString) {
    try! FileManager.default.createDirectory(at: VocabFolderPath, withIntermediateDirectories: true, attributes: nil)
}
    
// create custom vocab folder
let CustomVocabFolderPath = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0].appendingPathComponent("vocabFolder/\(String(AddNewFolder.text!))")
    
if !FileManager.default.fileExists(atPath: CustomVocabFolderPath.absoluteString) {
    try! FileManager.default.createDirectory(at: CustomVocabFolderPath, withIntermediateDirectories: true, attributes: nil)
}

and to navigate a Simualtor device, execute open 'xcrun simctl get_app_container booted BUNDLE_IDENTIFIER data' -a Finder