我正在使用VOIP服务来构建应用程序。现在,我将我的应用程序与CallKit
集成在一起,以便处理来电请求。
当应用程序处于前台或后台时,在接听电话时它们可以正常工作。但是问题在于,当屏幕锁定并且我试图接听电话时,不幸的是,即使我解锁了屏幕,我也听不到双方的声音。
如何解决此问题?
这是来电报告的方式:
func reportIncomingCall(uuid: UUID, handle: String, hasVideo: Bool = false, completion: ((NSError?) -> Void)?) {
// 1.
print("This is UUID === ", uuid)
configureAudioSession()
let update = CXCallUpdate()
update.remoteHandle = CXHandle(type: .phoneNumber, value: handle)
update.hasVideo = hasVideo
provider.reportNewIncomingCall(with: uuid, update: update) { error in
if error == nil {
// 3.
self.configureAudioSession()
let call = CallKitCallInit(uuid: uuid, handle: handle)
self.callKitManager.add(call: call)
lastCallUUID = uuid
print("UUID === ", uuid)
} else {
}
// 4.
completion?(error as NSError?)
}
}
这就是我设置音频的方式
func configureAudioSession() {
let session = AVAudioSession.sharedInstance()
do{
try session.setCategory(AVAudioSessionCategoryPlayAndRecord)
} catch {
print("========== Error in setting category \(error.localizedDescription)")
}
do {
try session.setMode(AVAudioSessionModeVoiceChat)
} catch {
print("========= Error in setting mode \(error.localizedDescription)")
}
do {
try session.setPreferredSampleRate(44100.0)
} catch {
print("======== Error setting rate \(error.localizedDescription)")
}
do {
try session.setPreferredIOBufferDuration(0.005)
} catch {
print("======== Error IOBufferDuration \(error.localizedDescription)")
}
do {
try session.setActive(true)
} catch {
print("========== Error starting session \(error.localizedDescription)")
}
}
当屏幕锁定时我接听电话时,我可以看到它在configureAudioSession()
函数中引发的错误。
为什么在屏幕锁定时无法设置音频?
答案 0 :(得分:0)
我通过添加以下代码行完成了
func provider(_ provider: CXProvider, perform action: CXAnswerCallAction) {
// 1.
guard let call = callKitManager.callWithUUID(uuid: action.callUUID) else {
action.fail()
return
}
// 2.
configureAudioSession()
// 3.
call.answer()
// 4.
action.fulfill()
}
这是configureAudioSession
func configureAudioSession() {
let session = AVAudioSession.sharedInstance()
do{
try session.setCategory(AVAudioSession.Category.playAndRecord,
mode: AVAudioSession.Mode.voiceChat,
options: [])
} catch {
print("========== Error in setting category \(error.localizedDescription)")
}
do {
try session.setPreferredSampleRate(44100.0)
} catch {
print("======== Error setting rate \(error.localizedDescription)")
}
do {
try session.setPreferredIOBufferDuration(0.005)
} catch {
print("======== Error IOBufferDuration \(error.localizedDescription)")
}
do {
try session.setActive(true)
} catch {
print("========== Error starting session \(error.localizedDescription)")
}
}
答案 1 :(得分:-1)
在配置音频会话时,您可以尝试使用AVAudioSessionModeVoiceChat而不是AVAudioSessionModeMoviePlayback模式。