How to use camera flash in NativeCameraView android

edit

Please, in the future, try to focus on using tags without the hashtags. These hashtags create tons of double tags, which is not interesting if you want to apply filtering on topics. I have removed them and formatted your code a bit more correctly.

thank you

Maybe try

 mCamera.set(Highgui.CV_CAP_PROP_ANDROID_FLASH_MODE,
 Highhui.CV_CAP_ANDROID_FLASH_MODE_ON);

I dont know if its just a typo, but you try to set the focus, not flash mode

i tried flash_mote too

What are you actually trying to do? Do you want to use it like a flashlight or as a real flash?

as a real flash

I think the problem is that VideoCapture actually has no real photo functionality. Its just a camera/video stream and you have the possibility to retrieve a frame from it, but you actually dont take a real picture. So the flash wont work. At least this is how I imagine it.

In my app I do videos. I have to keep the flash on during the recording of the video.

mCamera.set(Highgui.CV_CAP_PROP_ANDROID_FLASH_MODE, Highhui.CV_CAP_ANDROID_FLASH_MODE_TORCH);

this worked for me

it works. thank you