Question

我已成功获取存储在iCloud驱动器中的文件列表。当我检查路径中存在的文件时，它返回true。

但是当我尝试获取文件的内容时，它不允许我读取文件并提供一些垃圾数据。

我可以直接从iCloud读取文件，还是需要先将其移至app的文档文件夹？在此先感谢您的帮助。

这是我的代码

iCloud网址

static let iCloudDocumentsURL: URL? = FileManager.default.url(forUbiquityContainerIdentifier: nil)?.appendingPathComponent("Documents")

文件路径

let filePath =DocumentsDirectory.iCloudDocumentsURL?.appendingPathComponent(file).path

检查文件是否存在及其显示＆＃34;文件可用＆＃34;

if FileManager().fileExists(atPath: filePath)
        {
            print("File Available")
        }
        else
        {
            print("Not Available")
        }

获取文件数据并显示 176 字节，实际上是 76756 字节

let fileData = NSData.init(contentsOfFile: filePath)

Answer 1

此目标C代码可以帮助您从iCloud中读取文件......

UIDocumentPickerViewController *documentPicker = [[UIDocumentPickerViewController alloc] initWithDocumentTypes:@[@"public.content"] inMode:UIDocumentPickerModeImport];    //public.composite-content
documentPicker.delegate = self;
[documentPicker setModalPresentationStyle:UIModalPresentationFormSheet];
[self presentViewController:documentPicker animated:YES completion:nil];

实施UIDocumentPickerDelegate方法

- (void)documentPicker:(UIDocumentPickerViewController *)controller didPickDocumentAtURL:(NSURL *)url {

    NSLOG(@"controller.documentPickerMode = %d", controller.documentPickerMode);

    if (controller.documentPickerMode == UIDocumentPickerModeImport) {
        //here you can download your file and store in document dir.
        //in "url" you get url of the file to be downloaded
       //so you can check here whether file is already available or not
    }
}

- (void)documentPickerWasCancelled:(UIDocumentPickerViewController *)controller {

    NSLOG(@"documentPickerWasCancelled");
}

从iCloud中读取文件内容

1 个答案: