How to turn on camera light (make a flashlight) on iPhone/iPad?

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Hi everyone,

I was wondering if I can turn on camera light on my iPhone? Does Unity support that kind of action?

I found something about that on the internet, but they don't explain anything about the process or java scripting in unity, and i also didn't find anything in script references.

Thanks

Answer 1

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Answer by whydoidoit · Jun 20, 2012 at 09:49 PM

Vuforia's CameraDevice supports turning on the camera light on the iPhone, ut might be a bit of overkill :) - But it is free.

http://www.qualcomm.com/solutions/augmented-reality

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Milena · Jun 25, 2012 at 10:38 AM 0

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Hey Mike, i downloaded that plugin and it has lots of stuff, so i will see if i can "isolate" only what i need. When I get to my answer I will post it on this topic! Sorry about the iPad in my question, it was "automatic mistake" :)

Thanks a lot for your help, this forum has always been most helpful!

whydoidoit · Jun 25, 2012 at 10:56 AM 0

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It's CameraDevice.Instance.SetFlashTorchMode(true); :)

Milena · Jun 25, 2012 at 03:34 PM 0

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Mike, I just spent a lot of time reading all of those scripts that i downloaded. In my project I used only two of them, one is CameraDevice that is attached to Main Camera. I took only this: bool result = cameraDeviceSetFlashTorchMode(on ? 1 : 0) != 0; )

And second is, very short, QCARMacros for platforms. I made simple ON/OFF button.

I built it and the build succeeded, but it just won't run it on my iPhone. It says:

Unable to resolve pinvoke method 'CameraDevice:cameraDeviceSetFlashTorchMode (int)' Re-run with MONO_LOG_LEVEL=debug for more information.

Do you now what else should I add in my project, maybe some .dll file, i don't know?

P.S. I didn't use "Instance" cause it kept giving me error. So I put together everything in one script.

Thanks!

whydoidoit · Jun 25, 2012 at 10:26 PM 0

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Hmmm, that's odd - sometimes QCAR has a problem with the update of your XCode project (especially if you use it with some other plugins). I have to say I haven't tried it in a few months. If you IOS project is building - perhaps it's broken in Vurforia...

Milena · Jun 26, 2012 at 11:52 AM 1

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I managed to make it work! I just had to import much more scripts in my project 'cause they all depend on each other.

Thanks a lot Mike for the link, Vuforia package really has everything for the camera, zoom, focus, torchlight...

Thanks!!!

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Answer 2

Answer by hellobard · Sep 12, 2012 at 09:52 PM

Hey Milena, Could you possible share how you set up the button on / off and called up the Qualcomm script? bit of a noob here, but I'd love to learn from how you made it work!

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hellobard · Dec 16, 2012 at 11:53 AM 0

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just wanted to add to this thread if anyone else should be in use of this information like I did:

To make this work, I had to put the Qualcomm Vuforia folder of the project into my Plugins folder to make the script accessible through JS. I then used FingerGestures (in my case) with a function OnTap and just added this line of code: CameraDevice.Instance.SetFlashTorchMode(true);

Works perfectly on iOS. Will have to try this on Android too.

BoatBest · Jan 14, 2017 at 08:56 AM 0

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Could you please tell me, where can I get that Qualcomm Vuforia, as I know right now you need to get the plugin so you can use CameraDevice.Instance.SetFlashTorchMode(true); right? Much appreciate and thank you very much in advance!

How to turn on camera light (make a flashlight) on iPhone/iPad?

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