1.info.plist里追加两个项目,值都是”YES”。
- UIFileSharingEnabled (Application supports iTunes file sharing)
- LSSupportsOpeningDocumentsInPlace (Supports opening documents in place)
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2.修改代码。
- 在程序加载时在Documents中创建App专属文件夹和文件。
- 取得App专属文件夹里的文件名list。
import UIKit import SwiftUI class SceneDelegate: UIResponder, UIWindowSceneDelegate { var window: UIWindow? func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) { // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`. // If using a storyboard, the `window` property will automatically be initialized and attached to the scene. // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead). // 在Documents里创建App专属文件夹和文件 let fm = FileManager.default let documentsPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first! let filePath = documentsPath + "/myfile.txt" if !fm.fileExists(atPath: filePath) { fm.createFile(atPath: filePath, contents: nil, attributes: [:]) } // 文件名list取得 let documentDirectoryURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0] var files = [""] do { let contentUrls = try FileManager.default.contentsOfDirectory(at: documentDirectoryURL, includingPropertiesForKeys: nil) files = contentUrls.map{$0.lastPathComponent} print(files) //-> ["test1.txt", "test2.txt"] } catch { print(error) } // Create the SwiftUI view that provides the window contents. // 将文件名list传给contentView let contentView = ContentView(filesNameList: files) // Use a UIHostingController as window root view controller. if let windowScene = scene as? UIWindowScene { let window = UIWindow(windowScene: windowScene) window.rootViewController = UIHostingController(rootView: contentView) self.window = window window.makeKeyAndVisible() } }
3.将App文件夹里的文件名显示在画面上。
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4.验证导入文件,所以用iPhone手机测试。
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5.第一次在手机上加载App,需要在手机上开权限。
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6.这是程序启动后的画面,显示了App文件夹下的文件。
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7.手机连接Macbook后,可以向App的文件夹里导入需要的文件。这样App就可以访问这些文件了。手机连接以后,需要先同步。
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