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[英]'[NSObject]' is not convertible to '[AnyObject]'
[英]`NSDictionary` is not implicitly convertible to `[NSObject : AnyObject]`
我有这个功能:
func audioRecordingSettings() -> NSDictionary {
return [
AVFormatIDKey : kAudioFormatMPEG4AAC as NSNumber,
AVSampleRateKey : 16000.0 as NSNumber,
AVNumberOfChannelsKey : 1 as NSNumber,
AVEncoderAudioQualityKey : AVAudioQuality.Medium.rawValue as NSNumber
]
}
然后我定义了另一个:
func startRecordingAudio() {
var error: NSError?
let audioRecordingURL = self.audioRecordingPath()
audioRecorder = AVAudioRecorder(URL: audioRecordingURL, settings: audioRecordingSettings(), error: &error)
//Here the error comes.
}
它要求我在audioRecordingSetthings()
之后添加[NSObject: AnyObject]
,我不认为这是正确的解决方案。 因为当我在另一个class
调用startRecordingAudio()
时,它会在Unexpectedly found nil
时崩溃。
你只需要添加audioRecordingSettings() as [NSObject : AnyObject]
在AVAudioRecorderDelegate
:
AVAudioRecorder(URL: audioRecordingURL, settings: audioRecordingSettings() as [NSObject : AnyObject], error: &error)
另外,我会将您的方法更改为:
func audioRecordingSettings() -> [NSObject : AnyObject] {
return [
AVFormatIDKey : kAudioFormatMPEG4AAC,
AVSampleRateKey : 16000.0,
AVNumberOfChannelsKey : 1,
AVEncoderAudioQualityKey : AVAudioQuality.Medium.rawValue
]
}
您需要检查"AVAudioRecorder"
初始化程序,它指定:
init!(URL url: NSURL!, settings: [NSObject : AnyObject]!, error outError: NSErrorPointer)
因此,您需要将设置转换为[NSObject : AnyObject]
。
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