In the sample project above Samsung, the camera can be turned on normally, but the camera screen will be stuck at SONY before the screen appears, IOS will ask the camera permission

But when I packaged the package and imported it into my project, the IOS camera permissions were not accessed.
Where can I make changes?

Hi! Great work on the QR Scanner!
I'm trying to add it to my project, but I seem to be missing something...I am using Unity 2018.2.10f1, building for Android 4.4 (even tried going 5.0, but no go). I get the demo working, with simple and continuos working great, but I can't start my own scene.

I've even exported the boot , simple and continuos scenes to a new project, built it and it does not work, the phone freezes. The boot scene loads ok, but when I click simple or continuous, it freezes, doesn't even ask for the permission.

I've tried editing the AndroidManifest.xml and nothing...I did notice one thing, when I build your demo, the app asks for authorization to use the camera (upon clicking simple or continuous) but on my project it does not. What am I missing? Is there another setting on the project or libraries that I'm missing? It all seems to be there, and the editor show no errors...

Thanks!

Description

• It should be possible to access the last scan as an image to export it (png, jpg)

I tried compiling the code on IOS and it does not seem to work for me.
All it does is shows a white raw image.
It looks like it is not recognizing the camera.
My unity version is: 2017.3.1f1
Xcode version: 9.2
IOS version: 9.x
I hope you can help me with this issue.
Note:
It works really good on android and windows good job :)

EDIT:
Xcode error: Exception: This Webcam Library can't work without the webcam authorization

Description

Hello everyone,

Glad to see you here and thanks for using my QRCode plugin for so long.
Sadly I have to announce that this unity plugin is not supported anymore:

• I don't have the need or the motivation for such plugin anymore
• This has been developed mainly for unity 5.3-5.4 more than 3 years ago, there are probably better implementation nowadays
• I don't have time to keep it up-to-date with unity upgrades, and testing it across devices
• Most question are not about this plugin but related to android/ios or other SDK
• I don't have half of the devices people are asking question about (AR, iphone, ...)

So feel free to fork and make your own version or go to the Assetstore.

See you ... space cowboys o/

Hey, You have done fantastic job..!!

Here is how I use it in my project. when you open the app QR Scanning is there for login purpose. Now I want the scanning camera to be front camera but not the back camera. I have searched the Plugin for front camera access but could not find one.

I saw in project tab, There is card for multiple, I am not sure if that is the one which I am referring too.

Hi,

I am trying to integrate this plugin in my unity project and I am using 2019.2.5f1 editor. I have followed all the steps mentioned in the docs and copy pasted the code mentioned in the sample SimpleDemo.cs with few modifications for camera permission for iPhone (the code related to camera permissions can be added as an improvement).

After running the application in iPhone, I am getting the following exception:

NullReferenceException: Object reference not set to an instance of an object.
at Scene1.g__c_statusChanged|3_1 (System.Object sender, System.EventArgs e) [0x00000] in <00000000000000000000000000000000>:0
at System.EventHandler.Invoke (System.Object sender, System.EventArgs e) [0x00000] in <00000000000000000000000000000000>:0
at BarcodeScanner.Scanner.Scanner.set_Status (BarcodeScanner.Scanner.ScannerStatus value) [0x00000] in <00000000000000000000000000000000>:0
at BarcodeScanner.Scanner.Scanner.Update () [0x00000] in <00000000000000000000000000000000>:0
at Scene1.Update () [0x00000] in <00000000000000000000000000000000>:0

and same one when I tried to call the BarcodeScanner.Scan():

NullReferenceException: Object reference not set to an instance of an object.
at Scene1.g__c_statusChanged|3_1 (System.Object sender, System.EventArgs e) [0x00000] in <00000000000000000000000000000000>:0
at System.EventHandler.Invoke (System.Object sender, System.EventArgs e) [0x00000] in <00000000000000000000000000000000>:0
at BarcodeScanner.Scanner.Scanner.set_Status (BarcodeScanner.Scanner.ScannerStatus value) [0x00000] in <00000000000000000000000000000000>:0
at BarcodeScanner.Scanner.Scanner.Scan (System.Action2[T1,T2] callback) [0x00000] in <00000000000000000000000000000000>:0 at Scene1.scanQR () [0x00000] in <00000000000000000000000000000000>:0 at UnityEngine.Events.UnityAction.Invoke () [0x00000] in <00000000000000000000000000000000>:0 at UnityEngine.Events.InvokableCall.Invoke () [0x00000] in <00000000000000000000000000000000>:0 at UnityEngine.Events.UnityEvent.Invoke () [0x00000] in <00000000000000000000000000000000>:0 at UnityEngine.UI.Button.Press () [0x00000] in <00000000000000000000000000000000>:0 at UnityEngine.UI.Button.OnPointerClick (UnityEngine.EventSystems.PointerEventData eventData) [0x00000] in <00000000000000000000000000000000>:0 at UnityEngine.EventSystems.ExecuteEvents.Execute (UnityEngine.EventSystems.IPointerClickHandler handler, UnityEngine.EventSystems.BaseEventData eventData) [0x00000] in <00000000000000000000000000000000>:0 at UnityEngine.EventSystems.ExecuteEvents+EventFunction1[T1].Invoke (T1 handler, UnityEngine.EventSystems.BaseEventData eventData) [0x00000] in <00000000000000000000000000000000>:0
at UnityEngine.EventSystems.ExecuteEvents.Execute[T] (UnityEngine.GameObject target, UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.ExecuteEvents+EventFunction1[T1] functor) [0x00000] in <00000000000000000000000000000000>:0 at UnityEngine.EventSystems.StandaloneInputModule.ProcessTouchPress (UnityEngine.EventSystems.PointerEventData pointerEvent, System.Boolean pressed, System.Boolean released) [0x00000] in <00000000000000000000000000000000>:0 at UnityEngine.EventSystems.StandaloneInputModule.ProcessTouchEvents () [0x00000] in <00000000000000000000000000000000>:0 at UnityEngine.EventSystems.StandaloneInputModule.Process () [0x00000] in <00000000000000000000000000000000>:0 at UnityEngine.EventSystems.EventSystem.Update () [0x00000] in <00000000000000000000000000000000>:0 UnityEngine.DebugLogHandler:Internal_LogException(Exception, Object) UnityEngine.DebugLogHandler:LogException(Exception, Object) UnityEngine.Logger:LogException(Exception, Object) UnityEngine.Debug:LogException(Exception) UnityEngine.EventSystems.ExecuteEvents:Execute(GameObject, BaseEventData, EventFunction1)
UnityEngine.EventSystems.StandaloneInputModule:ProcessTouchPress(PointerEventData, Boolean, Boolean)
UnityEngine.EventSystems.StandaloneInputModule:ProcessTouchEvents()
UnityEngine.EventSystems.StandaloneInputModule:Process()
UnityEngine.EventSystems.EventSystem:Update()

I have wasted hours trying to figure out the exact root cause of these issues and think it is something related to the statusChanged as it can be seen in exceptions and which traces back to BarcodeScanner.Update() and BarcodeScanner.Scan(). Hence finally raising this issue. It would be great if some solution is provided quickly. Really stuck with this.

how can I turn on the flashlight when the app is reading a cade?

Hi
I have an AR app where i use AR Foundation for all the AR stuff.
I am trying to scan a barcode using this project.
I copied everything from the Simple sample example, but when i hit click the button to start the scanner it just gets stuck on "Status: running" without ever detecting a barcode.
Any ideas?

Apologies if this comes off as too novice, but I can't seem to figure out how to work with this project? Can someone please help me with a few steps-to-follow? How do I run one of the samples (simple/continuous) or how do I use this inside a new Unity scene and scan codes?

The (little) documentation suggests copying Assets/Scripts into my project and using it. Can someone help me with more precise steps? Thanks!

Scan callback do not Called,anyone can help me please?

		BarcodeScanner.Scan((barCodeType, barCodeValue) => {
			BarcodeScanner.Stop();
			TextHeader.text = "Found: " + barCodeType + " / " + barCodeValue;

			// Feedback
			Audio.Play();

			#if UNITY_ANDROID || UNITY_IOS
			Handheld.Vibrate();
			#endif
		});

Can you display the scanner image to fullscreen?
If so, how do I do this? :)
I'm pretty new to this

Is there any way to implement stoping camera on scene destroy?

I use this code and it works fine:

	public IEnumerator StopCamera(Action callback)
	{
		// Stop Scanning
		Image = null;
		BarcodeScanner.Destroy();
		BarcodeScanner = null;
		// Wait a bit
		yield return new WaitForSeconds(0.1f);
		callback.Invoke();
	}

But if I change scene from menu (different scene as overlay with dynamic content references to other scenes) using SceneManager my camera gets stuck until closing Unity editor.

Would you be so kind to suggest any solution? I dont want to drag refrence to camera everywhere just to make sure it closes or reimplement scene manager... =(

Question: Can your UnityBarcodeScanner work with ARCamera from Vuforia? It works wonders in normal mode, how can I use it for ARCamera?

Can I now scan only part of webcam view? (I am trying to work with it and hololens and would like to scan only "center".

Having some issues trying to use the stream from ARCore with this.

On the Unity example, the camera is not auto focusing. That can lead to blurry images and unrecognisable QR code.

I tried to do native Java plugin that sets the auto focus: http://stackoverflow.com/questions/19076316/how-to-ask-webcam-to-auto-focus-with-unity3d

The problem is I got an error when trying to access at the same time the camera: attempt to use a locked camera from a different process

Do you have any idea of how to fix this?

Hi all, I build project unity to android and scanner woked. With iOS, have no effect.
i added NSCameraUsageDescription with value: $(PRODUCT_NAME) camera use.
In xcode general setting: Deployment target is 8.0
Please help me.

How to switch between front and back camera in android with this bar code reader?
Any help will be appreciated.

Thank you,

If I instantiate the prefab first time it works, but if I destroy it and try to instantiate again I get the following:

[UnityBarcodeScanner] Camera Not Ready Yet ...
UnityEngine.Debug:LogWarning(Object)
Wizcorp.Utils.Logger.Service.ConsoleService:AddLog(LogLevel, Object, Object) (at Assets/Scripts/External/WizUtils/Logger/Services/ConsoleService.cs:39)
Wizcorp.Utils.Logger.Log:AddLog(LogLevel, Object, Object) (at Assets/Scripts/External/WizUtils/Logger/Log.cs:56)
Wizcorp.Utils.Logger.Log:Warning(Object, Object) (at Assets/Scripts/External/WizUtils/Logger/Log.cs:77)
BarcodeScanner.Scanner.Scanner:Update() (at Assets/Scripts/Scanner/Scanner.cs:275)
ContinuousDemo:Update() (at Assets/Samples/Continuous/ContinuousDemo.cs:108)

NOTE: My fault, I had BarcodeScanner.Destroy() commented out. stupid face

Description

This could be great to update the samples.
In the OnReady method, to add an easy way to keep the same aspect ratio on the rawTexture.
That's probably not really difficult to implement (2~3 lines of math)

Description

It seems on few devices with android 5.5, the videoRotationAngle is wrong.
Need to investigate to see if it's just updated few frames later or if it's a unity bug

It seems that CodeScannerThread.Abort(); should be avoid when stopping the camera.
I got that error:

System.Threading.ThreadAbortException: Thread was being aborted
  at ZXing.Common.HybridBinarizer.calculateBlackPoints (System.Byte[] luminances, Int32 subWidth, Int32 subHeight, Int32 width, Int32 height) [0x00000] in <filename unknown>:0 
  at ZXing.Common.HybridBinarizer.binarizeEntireImage () [0x00000] in <filename unknown>:0 
  at ZXing.Common.HybridBinarizer.get_BlackMatrix () [0x00000] in <filename unknown>:0 
  at ZXing.BinaryBitmap.get_BlackMatrix () [0x00000] in <filename unknown>:0 
  at ZXing.QrCode.QRCodeReader.decode (ZXing.BinaryBitmap image, IDictionary`2 hints) [0x00000] in <filename unknown>:0 
  at ZXing.MultiFormatReader.decodeInternal (ZXing.BinaryBitmap image) [0x00000] in <filename unknown>:0 
  at ZXing.MultiFormatReader.decodeWithState (ZXing.BinaryBitmap image) [0x00000] in <filename unknown>:0 
  at ZXing.BarcodeReaderGeneric`1[T].Decode (ZXing.LuminanceSource luminanceSource) [0x00000] in <filename unknown>:0 
  at ZXing.BarcodeReaderGeneric`1[T].Decode (.T rawRGB, Int32 width, Int32 height) [0x00000] in <filename unknown>:0 
  at BarcodeScanner.Parser.ZXingParser.Decode (UnityEngine.Color32[] colors, Int32 width, Int32 height) [0x0001e] in /Users/emmanuelah-kouen/Projects/ghm-unity/Assets/Libraries/UnityBarcodeScanner/Parser/ZXingParser.cs:41  :   at ZXing.Common.HybridBinarizer.calculateBlackPoints (System.Byte[] luminances, Int32 subWidth, Int32 subHeight, Int32 width, Int32 height) [0x00000] in <filename unknown>:0 
  at ZXing.Common.HybridBinarizer.binarizeEntireImage () [0x00000] in <filename unknown>:0 
  at ZXing.Common.HybridBinarizer.get_BlackMatrix () [0x00000] in <filename unknown>:0 
  at ZXing.BinaryBitmap.get_BlackMatrix () [0x00000] in <filename unknown>:0 
  at ZXing.QrCode.QRCodeReader.decode (ZXing.BinaryBitmap image, IDictionary`2 hints) [0x00000] in <filename unknown>:0 
  at ZXing.MultiFormatReader.decodeInternal (ZXing.BinaryBitmap image) [0x00000] in <filename unknown>:0 
  at ZXing.MultiFormatReader.decodeWithState (ZXing.BinaryBitmap image) [0x00000] in <filename unknown>:0 
  at ZXing.BarcodeReaderGeneric`1[T].Decode (ZXing.LuminanceSource luminanceSource) [0x00000] in <filename unknown>:0 
  at ZXing.BarcodeReaderGeneric`1[T].Decode (.T rawRGB, Int32 width, Int32 height) [0x00000] in <filename unknown>:0 
  at BarcodeScanner.Parser.ZXingParser.Decode (UnityEngine.Color32[] colors, Int32 width, Int32 height) [0x0001e] in /Users/emmanuelah-kouen/Projects/ghm-unity/Assets/Libraries/UnityBarcodeScanner/Parser/ZXingParser.cs:41 
UnityEngine.Debug:LogError(Object)
Wizcorp.Utils.Logger.Service.ConsoleService:AddLog(LogLevel, Object, Object) (at Assets/Libraries/UnityBarcodeScanner/External/WizUtils/Logger/Services/ConsoleService.cs:36)
Wizcorp.Utils.Logger.Log:AddLog(LogLevel, Object, Object) (at Assets/Libraries/UnityBarcodeScanner/External/WizUtils/Logger/Log.cs:56)
Wizcorp.Utils.Logger.Log:Error(Object, Object) (at Assets/Libraries/UnityBarcodeScanner/External/WizUtils/Logger/Log.cs:82)
BarcodeScanner.Parser.ZXingParser:Decode(Color32[], Int32, Int32) (at Assets/Libraries/UnityBarcodeScanner/Parser/ZXingParser.cs:49)
BarcodeScanner.Scanner.Scanner:ThreadDecodeQR() (at Assets/Libraries/UnityBarcodeScanner/Scanner/Scanner.cs:209)

What do you think about adding a boolean in Scanner and put a condition on it inside the thread loop:

public void ThreadDecodeQR()
{
	while (Result == null && !stopBGThread)
	{
		//....
	}
}

Hi! Just checking if this works for OpenCVForUnity?

Since the last PR (and usage of Handheld), it doesn't build anymore on some platform

Unity] -----CompilerOutput:-stdout--exitcode: 1--compilationhadfailure: True--outfile: Temp/Assembly-CSharp.dll
[Unity] Compilation failed: 1 error(s), 0 warnings
[Unity] Assets/Samples/Continuous/ContinuousDemo.cs(47,25): error CS0103: The name `Handheld' does not exist in the current context
[Unity] Assets/Samples/Continuous/ContinuousDemo.cs(47,25): error CS0103: The name `Handheld' does not exist in the current context
[Unity] Error building Player because scripts had compiler errors
[Unity] Player export failed. Reason: 2 errors
! build of 'default-windows-desktop-64-bit' failed. compile failed
publishing finished successfully.

Just need to had a directive around those call

Hello, first of all, I wanted to thank you for this awesome repo. Had it up and running in minutes!

Is there any way to enable auto focus for mobile devices?

Thanks!

Description

Apparently, there are some crash with android since the update to unity 5.5

https://forum.unity3d.com/threads/camera-to-render-texture-crash.442663/

Hello,

I've been using this plugin and we've had no issues so far, however, having a way to turn the camera light on while camera is active will help with scanning codes in low light conditions. Is there a way to incorporate this feature in a future release?

Zorcher

Hello, i want to have my camera view to be a perfect square but if i keep the original raw image size the camera image is distorted. is there any way to just cut off some of the view, so the raw image box is my chossen size?
Thanks

Hello,

nice asset, thanks a lot!

Can I get the Barcode "real world" Position and Rotation? I also tried with ZXIng itself but did not succeed…

Thanks a lot!