Android how to know if flashlight is on

问题

I am using CameraManager and CameraCharacteristics

I would like to know how to check if the flashlight is turned on

回答1:

Try this bit of code

public boolean FlashStatus() {


    Camera.Parameters parameters = camera.getParameters();

    if (parameters.getFlashMode() == "FLASH_MODE_TORCH") {
        return true;
    }

    if (parameters.getFlashMode() == "FLASH_MODE_OFF") {
        return false;
    }

}

来源：https://stackoverflow.com/questions/38827344/android-how-to-know-if-flashlight-is-on