Problems reading NFC Card

[vknow360]

CustomWebView doesn't handle everything itself, unfortunately.
You will have to configure OnPermissionRequest event and GrantPermission method accordingly.

[Taifun]

Here is an example

CustomWebView Camera permission

This is not a phone problem because in chrome this page works. I confirm the problem with the above blocks in samsung 8, android 9. When trying to ask for permission, the application automatically rejects the permission. However, these blocks work. Permissions need to be granted only for the webview and not for the app. CustomWebViewNew (2).aia (71.1 KB) [blocks - 2021-04-04T202753.021]

Taifun

[rmcpdias]

Thank you very much @vknow360 and @Taifun.

I will test it and let you know!

[rmcpdias]

Hello @vknow360 & @Taifun.

I've tested OnPermissionRequest and GrantPermission but it dind't work.

The 'OnPermissionRequest' event is not even called.

I've tried to grant permissions using this:

Can it be that CustomWebView doesn't support Web NFC?

Best Regards,
Rui

[rmcpdias]

Hello @vknow360 & @Taifun.

Did you have a chance to take a look at this?

[vknow360]

There is lack of information for this feature.

How do you obtain permissions from web-nfc API?

[Taifun]

in this answer javascript - How do you obtain permissions from web-nfc API? - Stack Overflow there is a link to a sample page Web NFC Sample which might help?

Taifun

[rmcpdias]

We based our website that reads NFC tags on the examples you mentioned @Taifun.

It works fine on Chrome, but when we use WebViewer or CustomWebView it doesn't work.

Rui

[rmcpdias]

Hello @Taifun & @vknow360.

Apparently the error message ""NotAllowedError: NFC permission request denied." is not due to lack of permissions, but because WebViewer and CustomWebView don't support WebNFC.

Best Regards,
Rui

[vknow360]

Yes, they don't support WebNFC.

[rmcpdias]

Hi @vknow360, good evening.

I'm using the latest version of CustomWebView (12.0beta). Do you know if WebNFC is now supported?

Best Regards,
Rui

[Gerriko_io]

According to MDN documentation, WebView for Android is supported.

NDEFReader - Web APIs | MDN

[TIMAI2]

@rmcpdias

Do you know if WebNFC is now supported?

@rmcpdias

WebViewer and CustomWebView don't support WebNFC

@vknow360

don't support WebNFC

There is enough information here to answer your question.

[rmcpdias]

Hello @TIMAI2.

I was asking again because I've installed a new version of CustomWebView (12.0beta).

This one is fairly recent.

Best Regards,
Rui

[Gerriko_io]

I found this post as I happened to be trying this out for the first time.
I see it is definitely a catch error triggered by the NFC scan function within my Javascript function.

I am digging around the Internet looking for solutions. One thing, which I cannot answer but maybe others who have webview expertise can. Namely does webview use WebChromeClient. i.e. is this set or can I set it: webView.webChromeClient = mWebChromeCient

[rmcpdias]

@Gerriko_io, are you using WebViewer or CustomWebView ?

CustomWebView seems to be much more powerfull, but I didn't get it to work with NFC.

But there is now a new version of CustomWebView (12.0beta), that's why I was asking if this one works with WebNFC.

Rui

[AyProductions]

@rmcpdias

Do you know if WebNFC is now supported?

You only answered your question in the other replies.

[rmcpdias]

Hello @Gerriko_io, good morning.

If you manage to get this working, please let me know. I've done lots of tests, but it always failed.

Best Regards,
Rui

[vknow360]

I did several tests but couldn't get it working. I am sure Chrome and other browsers use their own implementation of webview, enabling much more functionalities.