AVFoundation
AVAudioRecorder
import UIKit
import AVFoundation
class ViewController: UIViewController {
lazy var recordUrl:URL = {
var path = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first!
path = path.appending("/record.caf")
print(path)
let url = URL(string: path)
return url!
}()
lazy var record:AVAudioRecorder = {
// setting : 录音的设置项
// 录音参数设置(不需要掌握, 一些固定的配置)
let configDic: [String: AnyObject] = [
// 编码格式
AVFormatIDKey: NSNumber(value: Int32(kAudioFormatLinearPCM)),
// 采样率
AVSampleRateKey: NSNumber(value: 11025.0),
// 通道数
AVNumberOfChannelsKey: NSNumber(value: 2),
// 录音质量
AVEncoderAudioQualityKey: NSNumber(value: Int32(AVAudioQuality.min.rawValue))
]
let record = try? AVAudioRecorder(url: self.recordUrl, settings: configDic)
// 准备录音(系统会给我们分配一些资源)
record?.prepareToRecord()
// 从未来的某个时间点, 开始录音(需要我们手动通过代码结束录音)
// record.recordAtTime(record.deviceCurrentTime + 3)
// 从现在开始录音, 录多久
record?.record(forDuration: 10)
return record!
}()
lazy var player:AVPlayer = {
let player = AVPlayer(url: self.recordUrl)
return player
}()
@IBAction func startRecord(_ sender: Any) {
player.pause()
record.record()
print("开始录音")
}
@IBAction func stopRecord(_ sender: Any) {
//模仿微信，如果录音时间太短则视为放弃录音
if (record.currentTime.isLess(than: 2.0)) {
print("录音时间太短")
record.stop()
record.deleteRecording()
} else {
record.stop()
print("结束录音")
player.play()
}
}
}
AudioServices 音效播放
import UIKit
import AVFoundation
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
guard let url = Bundle.main.url(forResource: "m_17.wav", withExtension: nil) else { return }
let urlCF = url as CFURL
//创建SystemSoundID
var soundId:SystemSoundID = 0
AudioServicesCreateSystemSoundID(urlCF, &soundId)
//带振动的音效播放，真机测试
AudioServicesPlayAlertSound(soundId)
//单纯的音效播放
AudioServicesPlaySystemSound(soundId)
//带振动的音效播放播放完毕的回调，真机测试
AudioServicesPlayAlertSoundWithCompletion(soundId) {
print("带振动的播放完毕")
//释放
AudioServicesDisposeSystemSoundID(soundId)
}
//单纯的音效播放完毕的回调
AudioServicesPlayAlertSoundWithCompletion(soundId) {
print("播放完毕")
//释放
AudioServicesDisposeSystemSoundID(soundId)
}
}
}
封装一个音效播放的工具类
import UIKit
import AVFoundation
class AudioServiceTool: NSObject {
class func AudioPlayWithAlert(forResource:String,soundId:Int,inCompletionBlock:@escaping (() -> Void)) {
guard let url = Bundle.main.url(forResource: forResource, withExtension: nil) else { return }
let urlCF = url as CFURL
//创建SystemSoundID
var soundId:SystemSoundID = SystemSoundID(soundId)
AudioServicesCreateSystemSoundID(urlCF, &soundId)
//带振动的音效播放，真机测试
AudioServicesPlayAlertSound(soundId)
//带振动的音效播放播放完毕的回调，真机测试
AudioServicesPlayAlertSoundWithCompletion(soundId) {
inCompletionBlock()
print("播放完毕")
//释放
AudioServicesDisposeSystemSoundID(soundId)
}
}
class func AudioPlayWithSystem(forResource:String,soundId:Int,inCompletionBlock:@escaping (() -> Void)) {
guard let url = Bundle.main.url(forResource: forResource, withExtension: nil) else { return }
let urlCF = url as CFURL
//创建SystemSoundID
var soundId:SystemSoundID = SystemSoundID(soundId)
AudioServicesCreateSystemSoundID(urlCF, &soundId)
//单纯的音效播放
AudioServicesPlaySystemSound(soundId)
//单纯的音效播放完毕的回调
AudioServicesPlaySystemSoundWithCompletion(soundId) {
inCompletionBlock()
print("播放完毕")
//释放
AudioServicesDisposeSystemSoundID(soundId)
}
}
}
AVAudioPlayer
import UIKit
import AVFoundation
class ViewController: UIViewController {
lazy var player:AVAudioPlayer = {
let player = try! AVAudioPlayer(contentsOf: Bundle.main.url(forResource: "music", withExtension: "mp3")!)
player.enableRate = true//是否支持倍速播放
player.delegate = self
return player
}()
//播放
@IBAction func play(_ sender: Any) {
player.play()
}
//暂停
@IBAction func pause(_ sender: Any) {
player.pause()
}
//快进
@IBAction func forward(_ sender: Any) {
player.currentTime += 15
}
//快退
@IBAction func rewind(_ sender: Any) {
player.currentTime -= 15
}
//停止
@IBAction func stop(_ sender: Any) {
player.stop()
}
//倍速播放
@IBAction func fastPlay(_ sender: Any) {
player.rate = 4
}
//音量调整
@IBAction func volume(_ sender: UISlider) {
player.volume = sender.value
}
}
extension ViewController: AVAudioPlayerDelegate {
//检测音乐播放完毕
func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) {
print("音乐播放完毕")
}
}
音乐后台播放
先勾选后台模式
调用如下方法即可
func playBackground() -> () {
// 1. 获取音频会话
let audioSession: AVAudioSession = AVAudioSession.sharedInstance()
do {
// 2. 设置会话类型
try audioSession.setCategory(AVAudioSessionCategoryPlayback )
// 3. 激活会话
try audioSession.setActive(true)
}catch {
print(error)
}
}
听筒模式和扬声器模式切换
听筒模式
UIDevice.current.isProximityMonitoringEnabled = true //开启红外线功能
let session = AVAudioSession()
do{
try session.setCategory(AVAudioSessionCategoryPlayAndRecord, with: [])
try session.setActive(true)
}catch{
}
扬声器模式
UIDevice.current.isProximityMonitoringEnabled = true //开启红外线功能
let session = AVAudioSession()
do{
try session.setCategory(AVAudioSessionCategoryPlayback, with: [])
try session.setActive(true)
}catch{
}