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@ -2,17 +2,16 @@ import Accelerate
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@objc(LKVoiceMessageView2)
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final class VoiceMessageView2 : UIView {
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private let audioFileURL: URL
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private let player: AVAudioPlayer
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private var duration: Double = 1
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private let voiceMessage: TSAttachment
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private var isAnimating = false
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private var volumeSamples: [Float] = [] { didSet { updateShapeLayer() } }
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private var volumeSamples: [Float] = [] { didSet { updateShapeLayers() } }
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private var progress: CGFloat = 0
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private var duration: CGFloat = 1 // Not initialized at 0 to avoid division by zero
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// MARK: Components
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private lazy var loader: UIView = {
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let result = UIView()
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result.backgroundColor = Colors.text.withAlphaComponent(0.2)
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result.layer.cornerRadius = Values.messageBubbleCornerRadius
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return result
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}()
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@ -29,34 +28,41 @@ final class VoiceMessageView2 : UIView {
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}()
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// MARK: Settings
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private let margin = Values.smallSpacing
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private let margin: CGFloat = 4
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private let sampleSpacing: CGFloat = 1
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// MARK: Initialization
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init(audioFileURL: URL) {
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self.audioFileURL = audioFileURL
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player = try! AVAudioPlayer(contentsOf: audioFileURL)
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@objc(initWithVoiceMessage:)
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init(voiceMessage: TSAttachment) {
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self.voiceMessage = voiceMessage
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super.init(frame: CGRect.zero)
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initialize()
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}
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override init(frame: CGRect) {
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preconditionFailure("Use init(audioFileURL:) instead.")
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preconditionFailure("Use init(voiceMessage:associatedWith:) instead.")
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}
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required init?(coder: NSCoder) {
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preconditionFailure("Use init(audioFileURL:) instead.")
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preconditionFailure("Use init(voiceMessage:associatedWith:) instead.")
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}
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private func initialize() {
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setUpViewHierarchy()
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AudioUtilities.getVolumeSamples(for: audioFileURL).done(on: DispatchQueue.main) { [weak self] duration, volumeSamples in
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guard let self = self else { return }
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self.duration = duration
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self.volumeSamples = volumeSamples
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self.stopAnimating()
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}.catch(on: DispatchQueue.main) { error in
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print("[Loki] Couldn't sample audio file due to error: \(error).")
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if voiceMessage.isDownloaded {
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loader.alpha = 0
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guard let url = (voiceMessage as? TSAttachmentStream)?.originalMediaURL else {
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return print("[Loki] Couldn't get URL for voice message.")
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}
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AudioUtilities.getVolumeSamples(for: url).done(on: DispatchQueue.main) { [weak self] volumeSamples in
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guard let self = self else { return }
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self.volumeSamples = volumeSamples
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self.stopAnimating()
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}.catch(on: DispatchQueue.main) { error in
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print("[Loki] Couldn't sample audio file due to error: \(error).")
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}
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} else {
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showLoader()
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}
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}
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@ -65,16 +71,11 @@ final class VoiceMessageView2 : UIView {
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set(.height, to: 40)
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addSubview(loader)
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loader.pin(to: self)
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backgroundColor = Colors.sentMessageBackground
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layer.cornerRadius = Values.messageBubbleCornerRadius
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layer.insertSublayer(backgroundShapeLayer, at: 0)
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layer.insertSublayer(foregroundShapeLayer, at: 1)
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let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(togglePlayback))
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addGestureRecognizer(tapGestureRecognizer)
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showLoader()
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}
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// MARK: User Interface
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// MARK: UI & Updating
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private func showLoader() {
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isAnimating = true
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loader.alpha = 1
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@ -98,10 +99,17 @@ final class VoiceMessageView2 : UIView {
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override func layoutSubviews() {
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super.layoutSubviews()
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updateShapeLayer()
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updateShapeLayers()
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}
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@objc(updateForProgress:duration:)
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func update(for progress: CGFloat, duration: CGFloat) {
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self.progress = progress
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self.duration = duration
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updateShapeLayers()
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}
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private func updateShapeLayer() {
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private func updateShapeLayers() {
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guard !volumeSamples.isEmpty else { return }
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let max = CGFloat(volumeSamples.max()!)
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let min = CGFloat(volumeSamples.min()!)
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@ -117,20 +125,11 @@ final class VoiceMessageView2 : UIView {
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let y = margin + (h - sH) / 2
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let subPath = UIBezierPath(roundedRect: CGRect(x: x, y: y, width: sW, height: sH), cornerRadius: sW / 2)
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backgroundPath.append(subPath)
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if player.currentTime / duration > Double(i) / Double(volumeSamples.count) { foregroundPath.append(subPath) }
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if progress / duration > CGFloat(i) / CGFloat(volumeSamples.count) { foregroundPath.append(subPath) }
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}
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backgroundPath.close()
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foregroundPath.close()
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backgroundShapeLayer.path = backgroundPath.cgPath
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foregroundShapeLayer.path = foregroundPath.cgPath
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}
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@objc private func togglePlayback() {
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player.play()
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Timer.scheduledTimer(withTimeInterval: 0.5, repeats: true) { [weak self] timer in
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guard let self = self else { return timer.invalidate() }
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self.updateShapeLayer()
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if !self.player.isPlaying { timer.invalidate() }
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}
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}
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}
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nielsandriesse
5 years ago