ios - getting camera horizontal view angle in Swift -

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i want hva , vva (horizontal view angle , vertical view angle) of camera of ios device. (using swift) how do this?

in android can use following functions this:

public double gethva() {    return camera.getparameters().gethorizontalviewangle(); } public double getvva() {    return camera.getparameters().getverticalviewangle(); }

is there similar swift?

it amazes me there's no solution this. have been able hva programmatically, seems there no way vva (if knows otherwise, please correct me).

here how did it:

    let devices = avcapturedevice.devices()     var capturedevice : avcapturedevice?     device in devices {         if (device.hasmediatype(avmediatypevideo)) {             if(device.position == avcapturedeviceposition.back) {                 capturedevice = device as? avcapturedevice             }         }     }     if let retrieveddevice = capturedevice {         println("hfov \(retrieveddevice.activeformat.videofieldofview)")     }

for more reading avcapturedevices, , view code source, click here


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