hasTorch property
A Boolean value that specifies whether the capture device has a torch.
A torch is a light source, such as an LED flash, that is available on the device and used for illuminating captured content or providing general illumination. This property reflects whether the current device has such illumination hardware built-in.
Even if the device has a torch, that torch might not be available for use. Thus, you should also check the value of the isTorchAvailable method before using it.
Implementation
final bool hasTorch;