Don't ask for mic permission - ios

Question

I'm developing a WebRTC iOS application to receive video/audio streaming from a webcam.
The device only receives audio and video streams, does not collect audio and video, so do not need to apply for microphone permissions.
How can I prohibit the application of microphone permisson?
#kemmitorz
I have deleted the following method,but did not solve the problem.
- (RTCRtpSender *)createAudioSender
{
RTCMediaConstraints *constraints = [self defaultMediaAudioConstraints];
RTCAudioSource *source = [_factory audioSourceWithConstraints:constraints];
RTCAudioTrack *track = [_factory audioTrackWithSource:source
trackId:kARDAudioTrackId];
RTCRtpSender *sender = [_peerConnection
senderWithKind:kRTCMediaStreamTrackKindAudio
streamId:kARDMediaStreamId];
sender.track = track;
return sender;
}
If I set OfferToReceiveAudio to false. The device will not apply for microphone permission. But the received video has no sound.
- (RTCMediaConstraints )defaultOfferConstraints
{
NSDictionary *mandatoryConstraints = #{
#"OfferToReceiveAudio" : #"true",
#"OfferToReceiveVideo" : #"true"
};
RTCMediaConstraints constraints = [[RTCMediaConstraints alloc]
initWithMandatoryConstraints:mandatoryConstraints
optionalConstraints:nil];
return constraints;
}

Answer 1

Recording audio requires explicit permission from the user. The first
time your app’s audio session attempts to use an audio input route
while using a category that enables recording (see “Audio Session
Categories”), the system automatically prompts the user for
permission; alternatively, you can call requestRecordPermission: to
prompt the user at a time of your choosing
switch ([[AVAudioSession sharedInstance] recordPermission]) {
case AVAudioSessionRecordPermissionGranted:
// here call your record method and put this condition in your viewcontroller.
break;
case AVAudioSessionRecordPermissionDenied:
break;
case AVAudioSessionRecordPermissionUndetermined:
// This is the initial state before a user has made any choice
// You can use this spot to request permission here if you want
break;
default:
break;
}
Happy Coding..
Any query then tell me.