Question

我正在使用xcode 7.1，swift创建一个应用程序。我想播放音频。一切都好。现在我的问题我想听到设备处于静音模式或静音时的声音。我该怎么办？

我使用以下代码播放音频

currentAudio!.stop()
            currentAudio = try? AVAudioPlayer(contentsOfURL: NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("sample_audio", ofType: "mp3")!));

            currentAudio!.currentTime = 0

            currentAudio!.play();

Answer 1

在调用AVPlayer的 play（）方法之前放置此行。

在目标C

[[AVAudioSession sharedInstance]
            setCategory: AVAudioSessionCategoryPlayback
                  error: nil];

在Swift中

do {
    try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
 }
 catch {
    // report for an error
 }

Answer 2

Swift 3.0和Xcode＆gt; 8

当设备处于RINGER模式和SLIENT模式时，在视频中播放声音

 do {
        try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
        //print("AVAudioSession Category Playback OK")
        do {
            try AVAudioSession.sharedInstance().setActive(true)
            //print("AVAudioSession is Active")
        } catch _ as NSError {
            //print(error.localizedDescription)
        }
    } catch _ as NSError {
        //print(error.localizedDescription)
    }

Answer 3

快捷键4

在播放视频之前使用此行

try? AVAudioSession.sharedInstance().setCategory(.playback, mode: .default, options: [])

Answer 4

Swift 4.2

   do {
        try AVAudioSession.sharedInstance().setCategory(.playback, mode: .default, options: [])
    } catch let error {
        print("Error in AVAudio Session\(error.localizedDescription)")
    }

Answer 5

您可以使用AppDelegate类。

要在设备处于静音模式时启用声音（音频或视频），请使用AVAudioSessionCategoryPlayback：

func applicationDidBecomeActive(_ application: UIApplication) {

    do {
        try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
    } catch {
        print("AVAudioSessionCategoryPlayback not work")
    }
}

要在设备处于静音模式（例如我们接听电话）时禁用声音，请使用AVAudioSessionCategorySoloAmbient：

func applicationWillResignActive(_ application: UIApplication) {

    do {
        try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategorySoloAmbient)
    } catch {
        print("AVAudioSessionCategorySoloAmbient not work")
    }
}

Answer 6

你可以通过这个，它会帮助你

使用以下音频会话类别时，iOS上的声音不会静音：AVAudioSessionCategoryPlayback,AVAudioSessionCategoryRecord,AVAudioSessionCategoryPlayAndRecord

示例

func playSound (Sound: String, Type: String) { //Prepare the sound file name & extension var alertSound = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource(Sound, ofType: Type)!) //Preparation to play AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback, error: nil) AVAudioSession.sharedInstance().setActive(true, error: nil) //Play audio var error: NSError? audioPlayer = AVAudioPlayer(contentsOfURL: alertSound, error: &error) audioPlayer.prepareToPlay() audioPlayer.play() }

Answer 7

import AVKit

并将其添加到AppDelegate的applicationDidBecomeActive部分

func applicationDidBecomeActive(_ application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
        do {
            try AVAudioSession.sharedInstance().setCategory(AVAudioSession.Category.playback)
            print("AVAudioSession Category Playback OK")
            do {
                try AVAudioSession.sharedInstance().setActive(true)
                print("AVAudioSession is Active")
            } catch {
                print(error.localizedDescription)
            }
        } catch {
            print(error.localizedDescription)
        }
    }

Answer 8

Swift 5.0.1

try AVAudioSession.sharedInstance().setCategory(AVAudioSession.Category.playback)

设备处于静音模式时播放音频 - ios swift

8 个答案: