在iOS中通过编程将呼叫音频路由从蓝牙耳机更改为iPhone扬声器

import AVFoundation

let audioSession = AVAudioSession.sharedInstance()

do {
    try audioSession.setCategory(.playAndRecord)
} catch {
    print("设置音频会话类别失败：\(error.localizedDescription)")
}

do {
    try audioSession.setMode(.default)
} catch {
    print("设置音频会话模式失败：\(error.localizedDescription)")
}

do {
    try audioSession.setActive(true)
} catch {
    print("激活音频会话失败：\(error.localizedDescription)")
}

do {
    try audioSession.overrideOutputAudioPort(.speaker)
} catch {
    print("设置音频输出为扬声器失败：\(error.localizedDescription)")
}