Am Do., 9. Jan. 2020 um 18:05 Uhr schrieb Nuno Santos <
nunosan...@imaginando.pt>:
> Hi,
>
> I’m trying to setup camera usage permission request for 10.14 (Mojave) and
> 10.15 (Catalina). I have added the camera and microphone permissions in the
> Info.plist as in below:
>
> <key>NSCameraUsageDescription</key>
> <string>This application uses the video camera to communicate with another
> endpoint.</string>
> <key>NSMicrophoneUsageDescription</key>
> <string>This application uses the microphone input to communicate with
> another endpoint.</string>
>
> But the app keeps crashing as soon as the permission code below is called when
> it should prompt for permissions:
>
> void CameraManager::requestCameraUsagePermission()
> {
> switch([AVCaptureDevice
> authorizationStatusForMediaType:AVMediaTypeVideo])
> {
> case AVAuthorizationStatusAuthorized:
> _isCameraUsageAllowed = true;
> break;
> case AVAuthorizationStatusNotDetermined:
> * // crashes as soon this line is called*
> [AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo
> completionHandler:^(BOOL granted)
> {
> }];
> break;
> case AVAuthorizationStatusRestricted:
> _isCameraUsageAllowed = false;
> break;
> case AVAuthorizationStatusDenied:
> _isCameraUsageAllowed = false;
> }
> }
>
For me the following snippet works fine:
if (@available(macOS 10.14, *))
{
NSString *mediaType = AVMediaTypeAudio;
[AVCaptureDevice requestAccessForMediaType:mediaType completionHandler:
^ (BOOL granted)
{
emit permissionRequestAnswered(granted);
}];
}
else
{
emit permissionRequestAnswered(true);
}
Are you running the sample on macOS 10.14 or higher? Other than that, maybe
info.plist in the build directory is not correct or something?
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