手电筒 windows phone 8 c#

Question

我是一名初学者，正在尝试为 windows phone 制作手电筒应用程序。

我在 XAML 中添加了一个按钮，这是 c#-code：

private async void Button_Click(object sender, RoutedEventArgs e)
        {
            CameraSensorLocation camLocation = CameraSensorLocation.Back;
            IReadOnlyList<object> CameraModes;
            CameraModes = AudioVideoCaptureDevice.GetSupportedPropertyValues(camLocation, KnownCameraAudioVideoProperties.VideoTorchMode);
            if (CameraModes.ToList().Contains((UInt32)VideoTorchMode.On))
            {
                AudioVideoCaptureDevice flashDevice;
                flashDevice = await AudioVideoCaptureDevice.OpenAsync(camLocation, AudioVideoCaptureDevice.GetAvailableCaptureResolutions(camLocation).First());
                flashDevice.SetProperty(KnownCameraAudioVideoProperties.VideoTorchMode, VideoTorchMode.On);
            }
        }

谁能告诉我代码有什么问题？

Answer 1

这可能会对您有所帮助。 Here 这个链接也可以帮助你

    PhotoCamera cam = new Microsoft.Devices.PhotoCamera(CameraType.Primary);
    cam.FlashMode = FlashMode.On;