我希望你能帮助我。我尝试编写一个简单的小程序，将音频录制 5 秒并将其保存在文档目录中。
我已经用模拟器对其进行了测试，我可以在输出中看到路径，还可以看到sound.wav创建的文件。我可以打开那个sound.wav文件。
这是我使用模拟器获得的路径：
(file:///Users/Username/Library/Developer/CoreSimulator/Devices/3721A435-C765-4C8D-BA59-04477B070F80/data/Containers/Data/PluginKitPlugin/476CD646-D534-46C0-B5D2-88D7429DFF8F/Documents/sound.wav)
但是，当我在实际的智能手表上运行它时，Xcode 的输出中没有任何内容。即使我将打印命令放入代码中，它们也没有显示出来。我不知道问题是什么。
我还想获取音频文件并将其发送到服务器（mysql）。如何获得实际的音频文件，wav在这种情况下是文件？以及如何从应该保存音频文件的文档目录中获取路径。
这是我的代码的样子：
我希望你能帮助我。非常感谢。
import WatchKit
import Foundation
import AVFoundation
class InterfaceController: WKInterfaceController, AVAudioRecorderDelegate{
@IBOutlet weak var btn: WKInterfaceButton!
var recordingSession : AVAudioSession!
var audioRecorder : AVAudioRecorder!
var settings = [String : Any]()
override func awake(withContext context: Any?) {
super.awake(withContext: context)
recordingSession = AVAudioSession.sharedInstance()
do{
try recordingSession.setCategory(AVAudioSession.Category.playAndRecord)
try recordingSession.setActive(true)
recordingSession.requestRecordPermission(){[unowned self] allowed in
DispatchQueue.main.async {
if allowed{
print("Allow")
} else{
print("Don't Allow")
}
}
}
}
catch{
print("failed to record!")
}
// Configure interface objects here.
// Audio Settings
settings = [
AVFormatIDKey:Int(kAudioFormatLinearPCM),
AVSampleRateKey:44100.0,
AVNumberOfChannelsKey:1,
AVLinearPCMBitDepthKey:8,
AVLinearPCMIsFloatKey:false,
AVLinearPCMIsBigEndianKey:false,
AVEncoderAudioQualityKey:AVAudioQuality.max.rawValue
]
}
override func willActivate() {
// This method is called when watch view controller is about to be visible to user
super.willActivate()
}
override func didDeactivate() {
// This method is called when watch view controller is no longer visible
super.didDeactivate()
}
func directoryURL() -> NSURL? {
let fileManager = FileManager.default
let urls = fileManager.urls(for: .documentDirectory, in: .userDomainMask)
let documentDirectory = urls[0] as NSURL
let soundUrl = documentDirectory.appendingPathComponent("sound.wav")
print(soundUrl)
return soundUrl as NSURL?
}
func startRecording(){
let audioSession = AVAudioSession.sharedInstance()
do{
audioRecorder = try AVAudioRecorder(url: self.directoryURL()! as URL,
settings: settings)
audioRecorder.delegate = self
audioRecorder.prepareToRecord()
audioRecorder.record(forDuration: 5.0)
}
catch {
finishRecording(success: false)
}
do {
try audioSession.setActive(true)
audioRecorder.record()
} catch {
}
}
func finishRecording(success: Bool) {
audioRecorder.stop()
if success {
print(success)
} else {
audioRecorder = nil
print("Somthing Wrong.")
}
}
@IBAction func recordAudio() {
if audioRecorder == nil {
print("Pressed")
self.btn.setTitle("Stop")
self.btn.setBackgroundColor(UIColor(red: 119.0/255.0, green: 119.0/255.0, blue: 119.0/255.0, alpha: 1.0))
self.startRecording()
} else {
self.btn.setTitle("Record")
print("Pressed2")
self.btn.setBackgroundColor(UIColor(red: 221.0/255.0, green: 27.0/255.0, blue: 50.0/255.0, alpha: 1.0))
self.finishRecording(success: true)
}
}
func audioRecorderDidFinishRecording(_ recorder: AVAudioRecorder, successfully flag: Bool) {
if !flag {
finishRecording(success: false)
}
}
}
