在swift（iOS）中实施文档选择器_Ios_Swift_Uidocumentpickervc

在swift（iOS）中实施文档选择器

ios swift

在swift（iOS）中实施文档选择器,ios,swift,uidocumentpickervc,Ios,Swift,Uidocumentpickervc,我想在我的iOS应用程序中选择任何类型（.pdf、.docs、.xlsx、.jpeg、.txt、.rtf等）功能的文件。单击上载按钮，我希望我的应用程序打开一个目录并选择文件（DocumentsPicker）在Swift中执行此操作的任何方法？您可以使用NSURLSession实现您所描述的内容您必须将显示的目标目录限制为应用程序的文档目录。应用程序无法完全访问文件系统。这将帮助您实现下载/上载功能 UIDocumentMenuViewController *importMenu = [[U

我想在我的iOS应用程序中选择任何类型（.pdf、.docs、.xlsx、.jpeg、.txt、.rtf等）功能的文件。单击上载按钮，我希望我的应用程序打开一个目录并选择文件（

DocumentsPicker

）

在

Swift

中执行此操作的任何方法？

您可以使用

NSURLSession

实现您所描述的内容

您必须将显示的目标目录限制为应用程序的文档目录。应用程序无法完全访问文件系统。

这将帮助您实现下载/上载功能

UIDocumentMenuViewController *importMenu = [[UIDocumentMenuViewController alloc] initWithDocumentTypes:@[@"public.item"] inMode:UIDocumentPickerModeImport | UIDocumentPickerModeExportToService];

有关更多信息，请阅读iOS 14更新：您不需要任何功能。只要用适当的类型创建一个

UIDocumentPickerViewController

，实现委托，就完成了

更多信息。代码如下：


导入UIKit
进口流动储备
导入UniformTypeIdentifiers
func selectFiles（）{
让types=UTType.types（标记：“json”，
tagClass:UTTagClass.filenameExtension，
符合：无）
让documentPickerController=UIDocumentPickerViewController(
用于打开内容类型：类型）
documentPickerController.delegate=self
self.present（documentPickerController，动画：true，完成：nil）
}

从项目的功能中，启用

iCloud

和

密钥共享

在类中导入

MobileCoreServices

，然后在

UIViewController

中扩展以下三个类：

UIDocumentMenuDelegate,UIDocumentPickerDelegate,UINavigationControllerDelegate

执行以下功能：

public func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
    guard let myURL = urls.first else {
        return
    }
    print("import result : \(myURL)")
}
      

public func documentMenu(_ documentMenu:UIDocumentMenuViewController, didPickDocumentPicker documentPicker: UIDocumentPickerViewController) {
    documentPicker.delegate = self
    present(documentPicker, animated: true, completion: nil)
}


func documentPickerWasCancelled(_ controller: UIDocumentPickerViewController) {
    print("view was cancelled")
    dismiss(animated: true, completion: nil)
}

你怎么称呼这一切？向单击函数添加以下代码位：

func clickFunction(){

let importMenu = UIDocumentMenuViewController(documentTypes: [String(kUTTypePDF)], in: .import)
    importMenu.delegate = self
    importMenu.modalPresentationStyle = .formSheet       
    self.present(importMenu, animated: true, completion: nil)
}

点击你的按钮。将弹出以下菜单

就Dropbox而言。单击任何项目时。您将被重定向回您的应用程序，URL将登录到您的终端

根据需要操作文档类型。在我的应用程序中，用户只允许使用Pdf。所以，随你的便

kuttypeppdf

kUTTypePNG

kUTTypeJPEG

如果你想定制你自己的菜单栏。添加以下代码并在处理程序中自定义自己的函数

importMenu.addOption(withTitle: "Create New Document", image: nil, order: .first, handler: { print("New Doc Requested") })

享受它。

您可以使用

UIDocumentPickerViewController

从文件应用程序或iCloud驱动器获取文件

从

iCloud

功能激活

键值存储

和

iCloud文档

：

在要打开文档选择器的视图控制器上导入以下框架：

import MobileCoreServices

从

UIDocumentPickerDelegate

执行以下方法：

func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
     // you get from the urls parameter the urls from the files selected
}

创建

UIDocumentPickerViewController

以显示文件选择器或iCloud驱动器：

let types: [String] = [kUTTypePDF as String]
let documentPicker = UIDocumentPickerViewController(documentTypes: types, in: .import)
documentPicker.delegate = self
documentPicker.modalPresentationStyle = .formSheet
self.present(documentPicker, animated: true, completion: nil)

如果您希望用户可以将更多类型的文件导入到您的应用程序中，您必须将更多的

UTType

s添加到

types

NSArray

。要查看所有可用的类型，可以检查

当文档选择器在iOS 11上打开时，您尝试选择Google驱动器中的一个文件时，该文件可能由于错误而被禁用：

UIDocumentMenuViewController自iOS 11以来已被弃用。当从模态视图控制器显示时，我还发现它有问题。以下是使用选择器的直接方法：

import MobileCoreServices

private func attachDocument() {
    let types = [kUTTypePDF, kUTTypeText, kUTTypeRTF, kUTTypeSpreadsheet]
    let importMenu = UIDocumentPickerViewController(documentTypes: types as [String], in: .import)

    if #available(iOS 11.0, *) {
        importMenu.allowsMultipleSelection = true
    }

    importMenu.delegate = self
    importMenu.modalPresentationStyle = .formSheet

    present(importMenu, animated: true)
}

extension AViewController: UIDocumentPickerDelegate, UINavigationControllerDelegate {
    func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
        viewModel.attachDocuments(at: urls)
    }

     func documentPickerWasCancelled(_ controller: UIDocumentPickerViewController) {
        controller.dismiss(animated: true, completion: nil)
    }
}

像往常一样，不要忘记添加iCloud支持：

iCloud访问所有类型的文件#

我遇到的难题是如何为PickerView指定一些特定格式，例如.pptx和.xlsx文件。下面是一些代码，用于创建具有一些常见必需类型的PickerView

let types: [String] = [
    kUTTypeJPEG as String,
    kUTTypePNG as String,
    "com.microsoft.word.doc",
    "org.openxmlformats.wordprocessingml.document",
    kUTTypeRTF as String,
    "com.microsoft.powerpoint.ppt",
    "org.openxmlformats.presentationml.presentation",
    kUTTypePlainText as String,
    "com.microsoft.excel.xls",
    "org.openxmlformats.spreadsheetml.sheet",
    kUTTypePDF as String,
    kUTTypeMP3 as String
]
let documentPicker = UIDocumentPickerViewController(documentTypes: types, in: .import)
documentPicker.delegate = self
documentPicker.modalPresentationStyle = .formSheet
self.present(documentPicker, animated: true, completion: nil)

我发现有两个地方在整理这个列表时很有用：

希望这能帮助别人

UIDocumentPickerMode中的UIDocumentPickerController（documentTypes:[字符串]）在iOS 14.0中被弃用

let docsTypes = ["public.text", "com.apple.iwork.pages.pages", "public.data", "kUTTypeItem", "kUTTypeContent", "kUTTypeCompositeContent", "kUTTypeData", "public.database", "public.calendar-event", "public.message", "public.presentation", "public.contact", "public.archive", "public.disk-image", "public.plain-text", "public.utf8-plain-text", "public.utf16-external-plain-text", "public.utf16-plain-text", "com.apple.traditional-mac-plain-text", "public.rtf", "com.apple.ink.inktext", "public.html", "public.xml", "public.source-code", "public.c-source", "public.objective-c-source", "public.c-plus-plus-source", "public.objective-c-plus-plus-source", "public.c-header", "public.c-plus-plus-header", "com.sun.java-source", "public.script", "public.assembly-source", "com.apple.rez-source", "public.mig-source", "com.apple.symbol-export", "com.netscape.javascript-source", "public.shell-script", "public.csh-script", "public.perl-script", "public.python-script", "public.ruby-script", "public.php-script", "com.sun.java-web-start", "com.apple.applescript.text", "com.apple.applescript.script", "public.object-code", "com.apple.mach-o-binary", "com.apple.pef-binary", "com.microsoft.windows-executable", "com.microsoft.windows-dynamic-link-library", "com.sun.java-class", "com.sun.java-archive", "com.apple.quartz-composer-composition", "org.gnu.gnu-tar-archive", "public.tar-archive", "org.gnu.gnu-zip-archive", "org.gnu.gnu-zip-tar-archive", "com.apple.binhex-archive", "com.apple.macbinary-archive", "public.url", "public.file-url", "public.url-name", "public.vcard", "public.image", "public.fax", "public.jpeg", "public.jpeg-2000", "public.tiff", "public.camera-raw-image", "com.apple.pict", "com.apple.macpaint-image", "public.png", "public.xbitmap-image", "com.apple.quicktime-image", "com.apple.icns", "com.apple.txn.text-multimedia-data", "public.audiovisual-content", "public.movie", "public.video", "com.apple.quicktime-movie", "public.avi", "public.mpeg", "public.mpeg-4", "public.3gpp", "public.3gpp2", "public.audio", "public.mp3", "public.mpeg-4-audio", "com.apple.protected-mpeg-4-audio", "public.ulaw-audio", "public.aifc-audio", "public.aiff-audio", "com.apple.coreaudio-format", "public.directory", "public.folder", "public.volume", "com.apple.package", "com.apple.bundle", "public.executable", "com.apple.application", "com.apple.application-bundle", "com.apple.application-file", "com.apple.deprecated-application-file", "com.apple.plugin", "com.apple.metadata-importer", "com.apple.dashboard-widget", "public.cpio-archive", "com.pkware.zip-archive", "com.apple.webarchive", "com.apple.framework", "com.apple.rtfd", "com.apple.flat-rtfd", "com.apple.resolvable", "public.symlink", "com.apple.mount-point", "com.apple.alias-record", "com.apple.alias-file", "public.font", "public.truetype-font", "com.adobe.postscript-font", "com.apple.truetype-datafork-suitcase-font", "public.opentype-font", "public.truetype-ttf-font", "public.truetype-collection-font", "com.apple.font-suitcase", "com.adobe.postscript-lwfn-font", "com.adobe.postscript-pfb-font", "com.adobe.postscript.pfa-font", "com.apple.colorsync-profile", "public.filename-extension", "public.mime-type", "com.apple.ostype", "com.apple.nspboard-type", "com.adobe.pdf", "com.adobe.postscript", "com.adobe.encapsulated-postscript", "com.adobe.photoshop-image", "com.adobe.illustrator.ai-image", "com.compuserve.gif", "com.microsoft.bmp", "com.microsoft.ico", "com.microsoft.word.doc", "com.microsoft.excel.xls", "com.microsoft.powerpoint.ppt", "com.microsoft.waveform-audio", "com.microsoft.advanced-systems-format", "com.microsoft.windows-media-wm", "com.microsoft.windows-media-wmv", "com.microsoft.windows-media-wmp", "com.microsoft.windows-media-wma", "com.microsoft.advanced-stream-redirector", "com.microsoft.windows-media-wmx", "com.microsoft.windows-media-wvx", "com.microsoft.windows-media-wax", "com.apple.keynote.key", "com.apple.keynote.kth", "com.truevision.tga-image", "com.sgi.sgi-image", "com.ilm.openexr-image", "com.kodak.flashpix.image", "com.j2.jfx-fax", "com.js.efx-fax", "com.digidesign.sd2-audio", "com.real.realmedia", "com.real.realaudio", "com.real.smil", "com.allume.stuffit-archive", "org.openxmlformats.wordprocessingml.document", "com.microsoft.powerpoint.ppt", "org.openxmlformats.presentationml.presentation", "com.microsoft.excel.xls", "org.openxmlformats.spreadsheetml.sheet", ] let documentPicker = UIDocumentPickerViewController(documentTypes: Utils.docsTypes, in: .import) documentPicker.delegate = self documentPicker.allowsMultipleSelection = true present(documentPicker, animated: true, completion: nil)
现在是UIDocumentPickerViewController（用于打开内容类型：[UTType]）
ContentTypes是数组和数组的任意一个或以下组合：（UTType.image、UTType.text、UTType.plainText、UTType.utf8明文、UTType.utf16外部明文、UTType.utf16明文、UTType.delimitedText、UTType.commaSeparatedText、UTType.tabSeparatedText、UTType.utf8TabSeparatedText、UTType.rtf、UTType.pdf、UTType.webArchive、UTType.image、UTType.jpeg、UTType.tiff、UTType.gif、UTType.png、UTTyp、UTTyp.bmp、UTType、 ico，UTType.rawImage，UTType.svg，UTType.livePhoto，UTType.movie，UTType.video，UTType.audio，UTType.quickTimeMovie，UTType.mpeg，UTType.mpeg2Video，UTType.mpeg2TransportStream，UTType.mp3，UTType.mpeg4Movie，UTType.mpeg4Audio，UTType.avi，UTType.aiff，UTType.wav，UTType.midi，UTType.archive，UTType.gzip，UTType.bz2，UTType.appleArchive，UTType.spreadsheet，UTType.epub）
这就是我的工作原理：

let supportedTypes = [myArrayFromAnyOfTheAbove] func openDocument() { let documentPicker = UIDocumentPickerViewController(forOpeningContentTypes: supportedTypes, asCopy: true) documentPicker.delegate = self documentPicker.allowsMultipleSelection = false documentPicker.shouldShowFileExtensions = true present(documentPicker, animated: true, completion: nil) }

iOS应用程序是沙盒式的，因此您无法打开应用程序沙盒外的任何目录。此外，您的问题是如何扩展，并且没有显示您试图自己解决此功能的任何尝试。@Nilesh Pol:如果我必须从这里选择文件并将其上载到服务器，我必须下载文件然后通过多部分发送，还是有其他方法有其他方法吗？请建议。@Ishika document picker为您下载它。您不需要自己完成。无法仅在“public.pdf”显示此错误的情况下设置为pdf传入的类型public.pdf既不符合public.content也不符合public.item。如果要导出新类型，请确保它符合适当的父类型。“为什么我找不到位置available@Alexander我们如何添加不使用默认色调且不超出可用图标大小范围的自定义图像？@Alexander我唯一能使其适合的方法是将我的图标大小减小到25 x 25，但这样做非常困难pixelated@Alexander如果我必须选择文件fr怎么办
let docsTypes = ["public.text", "com.apple.iwork.pages.pages", "public.data", "kUTTypeItem", "kUTTypeContent", "kUTTypeCompositeContent", "kUTTypeData", "public.database", "public.calendar-event", "public.message", "public.presentation", "public.contact", "public.archive", "public.disk-image", "public.plain-text", "public.utf8-plain-text", "public.utf16-external-plain-text", "public.utf16-plain-text", "com.apple.traditional-mac-plain-text", "public.rtf", "com.apple.ink.inktext", "public.html", "public.xml", "public.source-code", "public.c-source", "public.objective-c-source", "public.c-plus-plus-source", "public.objective-c-plus-plus-source", "public.c-header", "public.c-plus-plus-header", "com.sun.java-source", "public.script", "public.assembly-source", "com.apple.rez-source", "public.mig-source", "com.apple.symbol-export", "com.netscape.javascript-source", "public.shell-script", "public.csh-script", "public.perl-script", "public.python-script", "public.ruby-script", "public.php-script", "com.sun.java-web-start", "com.apple.applescript.text", "com.apple.applescript.script", "public.object-code", "com.apple.mach-o-binary", "com.apple.pef-binary", "com.microsoft.windows-executable", "com.microsoft.windows-dynamic-link-library", "com.sun.java-class", "com.sun.java-archive", "com.apple.quartz-composer-composition", "org.gnu.gnu-tar-archive", "public.tar-archive", "org.gnu.gnu-zip-archive", "org.gnu.gnu-zip-tar-archive", "com.apple.binhex-archive", "com.apple.macbinary-archive", "public.url", "public.file-url", "public.url-name", "public.vcard", "public.image", "public.fax", "public.jpeg", "public.jpeg-2000", "public.tiff", "public.camera-raw-image", "com.apple.pict", "com.apple.macpaint-image", "public.png", "public.xbitmap-image", "com.apple.quicktime-image", "com.apple.icns", "com.apple.txn.text-multimedia-data", "public.audiovisual-content", "public.movie", "public.video", "com.apple.quicktime-movie", "public.avi", "public.mpeg", "public.mpeg-4", "public.3gpp", "public.3gpp2", "public.audio", "public.mp3", "public.mpeg-4-audio", "com.apple.protected-mpeg-4-audio", "public.ulaw-audio", "public.aifc-audio", "public.aiff-audio", "com.apple.coreaudio-format", "public.directory", "public.folder", "public.volume", "com.apple.package", "com.apple.bundle", "public.executable", "com.apple.application", "com.apple.application-bundle", "com.apple.application-file", "com.apple.deprecated-application-file", "com.apple.plugin", "com.apple.metadata-importer", "com.apple.dashboard-widget", "public.cpio-archive", "com.pkware.zip-archive", "com.apple.webarchive", "com.apple.framework", "com.apple.rtfd", "com.apple.flat-rtfd", "com.apple.resolvable", "public.symlink", "com.apple.mount-point", "com.apple.alias-record", "com.apple.alias-file", "public.font", "public.truetype-font", "com.adobe.postscript-font", "com.apple.truetype-datafork-suitcase-font", "public.opentype-font", "public.truetype-ttf-font", "public.truetype-collection-font", "com.apple.font-suitcase", "com.adobe.postscript-lwfn-font", "com.adobe.postscript-pfb-font", "com.adobe.postscript.pfa-font", "com.apple.colorsync-profile", "public.filename-extension", "public.mime-type", "com.apple.ostype", "com.apple.nspboard-type", "com.adobe.pdf", "com.adobe.postscript", "com.adobe.encapsulated-postscript", "com.adobe.photoshop-image", "com.adobe.illustrator.ai-image", "com.compuserve.gif", "com.microsoft.bmp", "com.microsoft.ico", "com.microsoft.word.doc", "com.microsoft.excel.xls", "com.microsoft.powerpoint.ppt", "com.microsoft.waveform-audio", "com.microsoft.advanced-systems-format", "com.microsoft.windows-media-wm", "com.microsoft.windows-media-wmv", "com.microsoft.windows-media-wmp", "com.microsoft.windows-media-wma", "com.microsoft.advanced-stream-redirector", "com.microsoft.windows-media-wmx", "com.microsoft.windows-media-wvx", "com.microsoft.windows-media-wax", "com.apple.keynote.key", "com.apple.keynote.kth", "com.truevision.tga-image", "com.sgi.sgi-image", "com.ilm.openexr-image", "com.kodak.flashpix.image", "com.j2.jfx-fax", "com.js.efx-fax", "com.digidesign.sd2-audio", "com.real.realmedia", "com.real.realaudio", "com.real.smil", "com.allume.stuffit-archive", "org.openxmlformats.wordprocessingml.document", "com.microsoft.powerpoint.ppt", "org.openxmlformats.presentationml.presentation", "com.microsoft.excel.xls", "org.openxmlformats.spreadsheetml.sheet", ] let documentPicker = UIDocumentPickerViewController(documentTypes: Utils.docsTypes, in: .import) documentPicker.delegate = self documentPicker.allowsMultipleSelection = true present(documentPicker, animated: true, completion: nil)

let supportedTypes = [myArrayFromAnyOfTheAbove] func openDocument() { let documentPicker = UIDocumentPickerViewController(forOpeningContentTypes: supportedTypes, asCopy: true) documentPicker.delegate = self documentPicker.allowsMultipleSelection = false documentPicker.shouldShowFileExtensions = true present(documentPicker, animated: true, completion: nil) }