Blazor MAUI - Clipboard Android - NotAllowedError: Write permission denied

[wizd]

Description

When try to set clipboard, error popup.

Steps to Reproduce

@code {
[Parameter] public string Text { get; set; }

private async Task CopyTextToClipboard()
{
    await JSRuntime.InvokeVoidAsync("clipboardCopy.copyText", Text);
}

}

in js:

    window.clipboardCopy = {
        copyText: function (text) {
            navigator.clipboard.writeText(text).then(function () {
                alert("Copied to clipboard!");
            })
                .catch(function (error) {
                    alert(error);
                });
        }
    };

Version with bug

Release Candidate 2 (current)

Last version that worked well

Unknown/Other

Affected platforms

Android

Affected platform versions

Android 12

Did you find any workaround?

No response

Relevant log output

No response

[javiercn]

@wizd thanks for contacting us.

It's very likely that you need to grant permissions to the webview to be able to copy things to the clipboard.

Blazor Hybrid exposes the underlying webview configuration for different platforms through a couple of events in Blazor Webview:

• BlazorWebViewInitializing gives access to the settings used to create the WebView on each platform if there are any available.
• BlazorWebViewInitialized gives access to the WebView to allow further configuring the settings.

These events are exposed by the BlazorWebview control and you can use the preferred patterns on each platform to attach an event handler and make any necessary tweaks.

[javiercn]

@guardrex can we find a place to document how to configure the underlying webview platform?

Essentially, somewhere in the docs to put this comment:

Blazor Hybrid exposes the underlying webview configuration for different platforms through a couple of events in Blazor Webview:

• BlazorWebViewInitializing gives access to the settings used to create the WebView on each platform if there are any available.
• BlazorWebViewInitialized gives access to the WebView to allow further configuring the settings.

These events are exposed by the BlazorWebview control and you can use the preferred patterns on each platform to attach an event handler and make any necessary tweaks.

[javiercn]

@wizd let us know if you still have issues after this.

[ghost]

Hi @wizd. We have added the "s/needs-info" label to this issue, which indicates that we have an open question for you before we can take further action. This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

[mkArtakMSFT]

Closing as this has already been documented here: https://docs.microsoft.com/en-us/aspnet/core/blazor/hybrid/?view=aspnetcore-6.0#-configuration