How to use Clipboard.Default.SetTextAsync in MAUI with FileSystemWatcher-CodePudding

I have followed

CodePudding user response：

You can wrap your call to SetTextAsync() with MainThread.BeginInvokeOnMainThread() like so to make sure it's invoked correctly:

private void MainPage_UrlReceived(string url)
{
    MainThread.BeginInvokeOnMainThread(() => 
    {
        Clipboard.Default.SetTextAsync(url);
    });
}

There is no need to await the call to SetTextAsync(), either, because you're calling it as a singular operation from within an event handler, which isn't awaitable.

I understand this is not the UI thread, but I fire an event which I believe should enable UI thread operations

Generally, there is no guarantee that event handlers of UI classes are called on the Main Thread.

You can find more information on when and how to invoke methods on the Main Thread in the official documentation: https://learn.microsoft.com/en-us/dotnet/maui/platform-integration/appmodel/main-thread?view=net-maui-7.0