AVCamManual.AVCamManualCameraViewController.OnChangeFocusModeClicked C# (CSharp) Метод

		public void OnChangeFocusModeClicked (NSObject sender)
		{
			var control = (UISegmentedControl)sender;
			AVCaptureFocusMode mode = focusModes [control.SelectedSegment];

			NSError error = null;

			bool success = VideoDevice.LockForConfiguration (out error);
			if (!success) {
				Console.WriteLine ($"Could not lock device for configuration: {error}");
				return;
			}

			if (VideoDevice.IsFocusModeSupported (mode)) {
				VideoDevice.FocusMode = mode;
			} else {
				Console.WriteLine ($"Focus mode {StringFromFocusMode (mode)} is not supported. Focus mode is {StringFromFocusMode (VideoDevice.FocusMode)}.");
				FocusModeControl.SelectedSegment = Array.IndexOf (focusModes, VideoDevice.FocusMode);
			}

			VideoDevice.UnlockForConfiguration ();
		}