OnActivityResult on the MainActivity for enabling camera in file upload control

MainActivity.cs

public class MainActivity : FormsAppCompatActivity
{
    public static IValueCallback UploadMessage;
    private static int FILECHOOSER_RESULTCODE = 1;
    public static Android.Net.Uri mCapturedImageURI;

    protected override void OnCreate (Bundle bundle)
    {
        base.OnCreate (bundle);

        // Uncomment to enable debugging of the webview on a desktop
        //Android.Webkit.WebView.SetWebContentsDebuggingEnabled(true);

        Forms.Init (this, bundle);

        LoadApplication (new App ());
    }
    
    protected override void OnActivityResult (int requestCode, Result resultCode, Android.Content.Intent data)
    {
        if (requestCode == FILECHOOSER_RESULTCODE) {
            if (null == UploadMessage)
                return;
            Java.Lang.Object result = data == null ? mCapturedImageURI : data.Data;

            UploadMessage.OnReceiveValue (new Android.Net.Uri [] { (Android.Net.Uri)result });
            UploadMessage = null;
        } else
            base.OnActivityResult (requestCode, resultCode, data);
    }
}