To run the example project, clone the repo, and run pod install from the Example directory first.

swift 5.0+

ASAudioWaveformView is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'ASAudioWaveformView'

1. init with frame. completion is Optional

   let wave = ASAudioWaveformView.create(frame: CGRect(x: 0, y: 40, width: 200, height: 100)) { (config) in
       let url = Bundle.main.url(forResource: "test", withExtension: "mp3")
       config.audioURL(url).maxSamplesCount(500).fillColor(.systemTeal)
   } completion: { (empty) in
       print("-->draw Complete ,empty: \(empty)")
   }

2. if you use Autolayout or set the frame later. completion is Optional

   let wave = ASAudioWaveformView()
   wave.createWaveform { (config) in
           let url = Bundle.main.url(forResource: "test", withExtension: "mp3")
           config.audioURL(url).positionType(.top).fillColor(.green)
   } completion: { (empty) in
       print("-->draw Complete ,empty: \(empty)")
   }

    /// config waveform postion, the default is center
    public func positionType(_ type: ASAudioWaveformView.PositionType) -> ASAudioWaveformConfig

    /// config waveform content style, the default is polyline
    public func contentType(_ type: ASAudioWaveformView.ContentType) -> ASAudioWaveformConfig

    /// config waveform fill color, the default is yellow
    public func fillColor(_ color: UIColor) -> ASAudioWaveformConfig

    /// config waveform audio source
    public func audioURL(_ URL: URL?) -> ASAudioWaveformConfig

    /// config max samples count, the default is 1000
    public func maxSamplesCount(_ count: Int) -> ASAudioWaveformConfig
    
    /// Specifies a range of time that may limit the temporal portion of the receiver's asset from which media data will be read.The default value of timeRange is CMTimeRangeMake(kCMTimeZero, kCMTimePositiveInfinity).
    public func timeRange(_ range: CMTimeRange) -> ASAudioWaveformConfig

1. position type center, content type polyLine

   

2. position type top, content type polyLine

   

3. position type bottom, content type polyLine

   

4. position type center, content type singleLine

   

waveform will adjust to fit the frame automatically

/// Refresh waveform by audio url
public func refreshWaveform(with audioURL: URL?)

Andrew Shen, [email protected]

ASAudioWaveformView is available under the MIT license. See the LICENSE file for more info.