Ios Uidocumentpickerviewcontroller Is Not Remembering Last Folder Top 6 Posts With The Most Views

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Tháng Năm 30, 2023

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Question: ios UIDocumentPickerViewController is not remembering last folder
Time: Asked 47 minute ago
Modified: Asked 83 minute ago
View: 8244

ios UIDocumentPickerViewController is not remembering last folder

If your iOS app’s UIDocumentPickerViewController is not remembering the last folder opened by the user, it’s likely because you need to save the URL of the last folder and use it to set the directoryURL property of the document picker.

Here’s how you can do it:

When the user selects a folder in the document picker, save the URL of the folder to your app’s UserDefaults:

swift
func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
    let folderUrl = urls[0].deletingLastPathComponent()
    UserDefaults.standard.set(folderUrl, forKey: "lastFolderURL")
}

When the user opens the document picker again, retrieve the URL of the last folder from UserDefaults and use it to set the directoryURL property of the document picker:

php
let picker = UIDocumentPickerViewController(documentTypes: ["public.item"], in: .open)
if let lastFolderUrl = UserDefaults.standard.url(forKey: "lastFolderURL") {
    picker.directoryURL = lastFolderUrl
}
present(picker, animated: true, completion: nil)

By saving and retrieving the URL of the last folder, the document picker will remember the last folder opened by the user.

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