一个好玩的波形声音图
class VoiceWaveView: UIView {
var audioRecorder:AVAudioRecorder!
lazy var audioRecorderDict = Dictionary
var filePath = ""
var audioRecorderTimer : Timer!
let path1 = UIBezierPath()
let layer1 = CAShapeLayer()
let path2 = UIBezierPath()
let layer2 = CAShapeLayer()
/// 波形更新间隔
private let updateFequency = 0.05
/// 声音数据数组
private var soundMeters = [Float]()
/// 声音数据数组容量
private let soundMeterCount = Int((ScreenWidth - 76 - 60)/6)
/// 录音时间
private var recordTime = 0.00
var tip:UILabel! //倾听中提示
var timer_remove:Timer! //3秒没有输入语音自动删除
var timeSecond = 0 //3秒时间计算
override init(frame: CGRect) {
super.init(frame: frame)
}
init(frame: CGRect,froLan:String,Tolan:String) {
super.init(frame: frame)
self.timer_remove = Timer.scheduledTimer(withTimeInterval: 1.0, repeats: true) { (timer) in
//监听3秒后删除
self.timerReduce()
}
self.backgroundColor = UIColor.init(hexString: "EBEEF0") //背景色
self.layer.cornerRadius = 5
self.layer.masksToBounds = true
//根据手机刷新频率刷新曲线
let display = CADisplayLink(target: self, selector: #selector(drawWaveLine))
display.add(to: RunLoop.current, forMode: RunLoop.Mode.common)
layer1.strokeColor = ThemeColor?.cgColor
layer1.fillColor = UIColor.clear.cgColor
layer1.lineWidth = 3
layer2.strokeColor = ThemeColor?.cgColor
layer2.fillColor = UIColor.clear.cgColor
layer2.lineWidth = 3
self.layer.addSublayer(layer1)
self.layer.addSublayer(layer2)
//添加通知，画波形图
NotificationCenter.default.addObserver(self, selector: #selector(updateView(notice:)), name: NSNotification.Name.init("updateMeters"), object: nil)
//开启录音
goRecoder()
//提示
tip = UILabel.init(frame: CGRect.init(x: 0, y: 150, width: ScreenWidth - 76, height: 30))
tip.text = "倾听中.."
tip.textAlignment = .center
tip.textColor = UIColor.init(hexString: "666666")
tip.font = getFont(14)
self.addSubview(tip)
}
func timerReduce()
{
timeSecond = timeSecond + 1
if timeSecond == 3 {
self.removeSelf()
}
}
func removeSelf(){
killtime()
self.timer_remove.invalidate()
Haw.stopDictating()
UIView.animate(withDuration: 0.3, animations: {
self.alpha = 0
}) { (over: Bool) in
if over{
self.removeFromSuperview()
}
}
}
@objc private func updateView(notice: Notification) {
soundMeters = notice.object as! [Float]
path1.removeAllPoints()
path2.removeAllPoints()
if soundMeters.count > 0 {
for i in (0...soundMeters.count - 1 ).reversed() {
let item = soundMeters[i]
var index = 0
index = soundMeters.count - i
// print(item)
var barHeight = 0.0//通过当前声音表计算应该显示的声音表高度
// 声音在 - 46 ～55 之间
// print(barHeight)
if item<0
{
if item < -46.0
{
barHeight = 0.0
}else
{
barHeight = Double(item) + 46.0
timeSecond = 0
}
}else
{
if item > 55
{
barHeight = 55
timeSecond = 0
}else
{
barHeight = Double(item) + 46
timeSecond = 0
}
}
path1.move(to: CGPoint(x: index * 6 + 3 + 30, y: 80))
path1.addLine(to: CGPoint(x: index * 6 + 3 + 30, y: Int(83 - barHeight)))
path2.move(to: CGPoint(x: index * 6 + 3 + 30, y: 80))
path2.addLine(to: CGPoint(x: index * 6 + 3 + 30, y: Int( barHeight + 83)))
}
layer1.path = path1.cgPath
layer2.path = path2.cgPath
}
}
@objc func drawWaveLine() {
path1.removeAllPoints()
path1.move(to: CGPoint(x: 10, y: self.bounds.height / 2))
}
func goRecoder()
{
self.filePath = SYAudioGetFilePathWithDate()
audioRecorderStartWithFilePath(filepatch: filePath)
}
func timerStart()
{
self.audioRecorderTimer = Timer.scheduledTimer(timeInterval: 0.02, target: self, selector: #selector(self.device), userInfo: nil, repeats: true)
}
@objc func device()
{
self.audioRecorder.updateMeters()
recordTime += updateFequency
//获取声音值
addSoundMeter(item: audioRecorder.averagePower(forChannel: 0))
}
//将声音值放在数组中
private func addSoundMeter(item: Float) {
if soundMeters.count < soundMeterCount {
soundMeters.append(item)
} else {
for (index, _) in soundMeters.enumerated() {
if index < soundMeterCount - 1 {
soundMeters[index] = soundMeters[index + 1]
}
}
// 插入新数据
soundMeters[soundMeterCount - 1] = item
NotificationCenter.default.post(name: NSNotification.Name.init("updateMeters"), object: soundMeters)
}
}
//录音设置
func setaudioRecorderDict()->Dictionary
{
self.audioRecorderDict.updateValue(NSNumber.init(value: kAudioFormatMPEG4AAC), forKey: AVFormatIDKey)
self.audioRecorderDict.updateValue(NSNumber.init(value: 11025), forKey: AVSampleRateKey)
self.audioRecorderDict.updateValue(NSNumber.init(value: 2), forKey: AVNumberOfChannelsKey)
self.audioRecorderDict.updateValue(NSNumber.init(value: 16), forKey: AVLinearPCMBitDepthKey)
self.audioRecorderDict.updateValue(NSNumber.init(value: AVAudioQuality.high.rawValue), forKey: AVEncoderAudioQualityKey)
return self.audioRecorderDict
}
func killtime()
{
self.audioRecorderTimer.invalidate()
}
func audioRecorderStartWithFilePath(filepatch:String)
{
let urlAudioRecorder = NSURL.fileURL(withPath: filepatch)
print(urlAudioRecorder)
do {
try self.audioRecorder = AVAudioRecorder.init(url: urlAudioRecorder, settings: setaudioRecorderDict())
}catch
{
}
self.audioRecorder.isMeteringEnabled = true
self.audioRecorder.delegate = self
if (self.audioRecorder != nil) {
let recordSession = AVAudioSession.sharedInstance()
do{
try recordSession.setCategory(.playAndRecord, mode: .default, options: [])
try recordSession.setMode(AVAudioSession.Mode.measurement)
//激活Session
try recordSession.setActive(true, options: .notifyOthersOnDeactivation)
}catch{
print("Throws：\(error)")
}
}
if self.audioRecorder.prepareToRecord() {
self.audioRecorder.record()
timerStart()
print("self.fromeLan\(self.fromeLan)")
}
}
}
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
extension VoiceWaveView:AVAudioRecorderDelegate
{
func audioRecorderEncodeErrorDidOccur(_ recorder: AVAudioRecorder, error: Error?) {
}
func audioRecorderDidFinishRecording(_ recorder: AVAudioRecorder, successfully flag: Bool) {
}
}