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AVAudioSessionCategory注意：除了 AVAudioSessionCategoryMultiRoute 外，其他的 Category 都遵循 last in wins 原则，即最后接入的音频设备作为输入或输出的主设备。AVAudioSessionCategoryOptionsAVAudioSessionModeSwift实现iOS录音与播放音频功能 狂奔的胖蜗牛 关注 2017.05.01 15:41* 字数 97 阅读 4275评论 2喜欢 6 自己写的一个类，用于swift实现了录音与播放录制的音频的功能。详细的注意点见注释： import Foundation import AVFoundation
class RecordManager {
var recorder: AVAudioRecorder? var player: AVAudioPlayer? let file_path = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first?.appending("/record.wav")
//开始录音 func beginRecord() { let session = AVAudioSession.sharedInstance() //设置session类型 do { try session.setCategory(AVAudioSessionCategoryPlayAndRecord) } catch let err{ print("设置类型失败:\(err.localizedDescription)") } //设置session动作 do { try session.setActive(true) } catch let err { print("初始化动作失败:\(err.localizedDescription)") } //录音设置，注意，后面需要转换成NSNumber，如果不转换，你会发现，无法录制音频文件，我猜测是因为底层还是用OC写的原因 let recordSetting: [String: Any] = [AVSampleRateKey: NSNumber(value: 16000),//采样率 AVFormatIDKey: NSNumber(value: kAudioFormatLinearPCM),//音频格式 AVLinearPCMBitDepthKey: NSNumber(value: 16),//采样位数 AVNumberOfChannelsKey: NSNumber(value: 1),//通道数 AVEncoderAudioQualityKey: NSNumber(value: AVAudioQuality.min.rawValue)//录音质量 ]; //开始录音 do { let url = URL(fileURLWithPath: file_path!) recorder = try AVAudioRecorder(url: url, settings: recordSetting) recorder!.prepareToRecord() recorder!.record() print("开始录音") } catch let err { print("录音失败:\(err.localizedDescription)") } }
//结束录音 func stopRecord() { if let recorder = self.recorder { if recorder.isRecording { print("正在录音，马上结束它，文件保存到了：\(file_path!)") }else { print("没有录音，但是依然结束它") } recorder.stop() self.recorder = nil }else { print("没有初始化") } }
//播放 func play() { do { player = try AVAudioPlayer(contentsOf: URL(fileURLWithPath: file_path!)) print("歌曲长度：\(player!.duration)") player!.play() } catch let err { print("播放失败:\(err.localizedDescription)") } }
} 使用的时候，只需要在要录音的地方导入该类，初始化后，使用即可 let recoder_manager = RecordManager()//初始化 recoder_manager.beginRecord()//开始录音 recoder_manager.stopRecord()//结束录音 recoder_manager.play()//播放录制的音频 更多的功能，就需要看各自的项目需求，然后去做相应的修改了。
将原生社交分享整合到应用中 import UIKit import Social class ViewController: UIViewController {
override func viewDidLoad() { super.viewDidLoad() let serviceType = SLServiceTypeTwitter if SLComposeViewController.isAvailable(forServiceType: serviceType) { let controller = SLComposeViewController(forServiceType: serviceType) controller?.setInitialText("设置想与别人分享的文字") controller?.add(UIImage(named: "风向文章中附带的图片")) controller?.add(NSURL(string: "为分享文字和图片添加一个URL")! as URL) controller?.completionHandler = { (result: SLComposeViewControllerResult) in print("completed") } }
}
}
播放音频文件和录音
// // ViewController.swift // SwiftExample // // Created by administrator on 2019/2/15. // Copyright © 2019 administrator. All rights reserved. //
import UIKit import AVFoundation
class ViewController: UIViewController,AVAudioPlayerDelegate,AVAudioRecorderDelegate {
var audioPlayer: AVAudioPlayer? var audioRecoder: AVAudioRecorder?
/**通知消息,播放器完成播放音频文件的通知**/ func audioPlayerDidFinishPlaying(player: AVAudioPlayer!, successfully flay: Bool) { print("Finish playing the song") }
override func viewDidLoad() { super.viewDidLoad()
DispatchQueue.global().async {[weak self] in self?.playAudio() } let workItem = DispatchWorkItem{ self.playAudio() } DispatchQueue.global().async(execute: workItem)
//录音 let session = AVAudioSession.sharedInstance() do { if #available(iOS 10.0, *) { try session.setCategory(.playAndRecord, mode: .default, options: .duckOthers) } else { try session.setMode(.default) try session.setActive(true, options: .notifyOthersOnDeactivation) } session.requestRecordPermission { [weak self](allowed: Bool) in if allowed { self?.startRecordingAudio() }else{ print("have no permission") } } } catch let error as NSError { print("error \(error)") }
}
func playAudio() { let mainBundle = Bundle.main let filePath = mainBundle.path(forResource: "MySong", ofType: ".mp3") if let path = filePath { let fileData = NSData(contentsOf: URL(fileURLWithPath: path)) var error: NSError
do { self.audioPlayer = try AVAudioPlayer(data: fileData! as Data) // try AVAudioPlayer(contentsOf: URL(fileURLWithPath: path)) if let player = self.audioPlayer{ player.delegate = self if player.prepareToPlay() && player.play(){ print("play success") } else { print("play failor") } } }catch let error as NSError{ if error != nil{ print("创建播放器失败") self.audioPlayer = nil }
} }
} func audioRecodingPath() -> NSURL { let fileManager = FileManager() var documentsFolderUrl:URL?
do { documentsFolderUrl = try fileManager.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false) } catch let error as NSError { print("error \(error)") } return documentsFolderUrl?.appendingPathComponent("recording.m4a") as! NSURL
} func audioRecordingSettings() -> NSDictionary { //音频录制选项 return [AVFormatIDKey : kAudioFormatMPEG4AAC, AVSampleRateKey : 16000.0 as NSNumber, AVNumberOfChannelsKey : 1 as NSNumber, AVEncoderAudioQualityKey : AVAudioQuality.low.rawValue as NSNumber] } func startRecordingAudio() { let audioRecordingURL = self.audioRecodingPath() do { audioRecoder = try AVAudioRecorder(url: audioRecordingURL as URL, settings: self.audioRecordingSettings() as! [String : Any]) if let recorder = audioRecoder { recorder.delegate = self if recorder.prepareToRecord() && recorder.record(){ let delayInSeconds = 5.0 DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + delayInSeconds) { self.audioRecoder?.stop() } // DispatchQueue.global().asyncAfter(deadline: DispatchTime.now() + delayInSeconds){}
}else{ print("error") } } } catch let error as NSError { print("error \(error)") } }
}
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