Question

这是我的代码：

var fileContent = ""
let baseURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
let fileURL = baseURL.appendingPathComponent("index").appendingPathExtension("html")
do {
    fileContent = try String(contentsOf: fileURL, encoding: String.Encoding.utf8)
} catch let error as NSError {
    print("Failed getting content of the file: \(fileURL), Error: " + error.localizedDescription)
    fileContent = ""
}

editorWebView!.loadHTMLString(fileContent, baseURL: baseURL)

问题是：

<img src='resources/check-box-uncheck.png'>

WKWebView加载html字符串但不显示图像。我使用FileManager复制了documentDirectory中的index.html文件和相关文件。我不想使用mainBundle。请帮忙吗？

baseURL是：文件：/// VAR /移动/容器/数据/应用/ C89D5B66-30FD-4B88-949F-F591E0EA1BE7 /文档/

检查文件和文件夹的功能： func allFilesList（atPath：URL） - ＆gt; [串]？ {

    var allFileNames = [String]()
    do {
        let fullPaths = try self.contentsOfDirectory(at: atPath, includingPropertiesForKeys:[], options: FileManager.DirectoryEnumerationOptions.skipsHiddenFiles)
        for fileName in fullPaths {
            let theFileName = fileName.lastPathComponent
            allFileNames.append(theFileName)
        }
    } catch let error {
        print("Error for list folders OR notes: \(error.localizedDescription)")
    }
    return allFileNames
}

Answer 1

我在代码中发现了这个错误。我没有附加要复制的文件。

let fileURL = urlPath.appendingPathComponent("index").appendingPathExtension("html")

添加以上行解决了问题。

我实施的实际方法是：

//To copy file in userDocuments
    func copyFileFromThisAppMainToUserDocument(fName: String, fExtension:String) -> Bool {
        let fileManager = FileManager.default
        let urlPath = fileManager.urls(for: .documentDirectory, in: .userDomainMask).first!
        let fileURL = urlPath.appendingPathComponent(fName).appendingPathExtension(fExtension)
        if let bundleURL = Bundle.main.url(forResource: fName, withExtension: fExtension) {
            // if file exist, copy it
            do {
                try fileManager.copyItem(at: bundleURL, to: fileURL)
                return true
            } catch let error as NSError { // Handle the error
                print("\(fName) copy failed! Error:\(error.localizedDescription)")
                return false
            }
        } else {
            print("\(fName) not exist in bundle folder")
            return false
        }
    }

WKWebView无法使用FileManager for documentDirectory

1 个答案: