getDocumentsDirectory Swift5替代方案

Question

Swift 5.0上的Swift 3.0出现错误

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代码：

//Create audio file name URL
let audioFilename = getDocumentsDirectory().appendingPathComponent("audioRecording.m4a")

//Create the audio recording, and assign ourselves as the delegate
audioRecorder = try AVAudioRecorder(url: audioFilename, settings: settings)

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在我看来，应该是这样的：

   func getDocumentsDirectory() -> URL
    {
        let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
        let documentsDirectory = paths[0]
        return documentsDirectory
    }

这是正确的吗？还是不想？

Answer 1

您可以使用以下代码：

func getDocumentsDirectory() throws -> URL {
     return try FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false)
}

别忘了处理异常情况。

try {
   let documents = try? getDocumentsDirectory()
   ...
} catch let error {
   print("something went wrong: \(error)")
}