Xamarin Android 定时刷新UI

var timer = new Timer(new TimerCallback(delegate (object state) 
            {
                this.RunOnUiThread(() => 
                {
                    var textureQRCodeScan = FindViewById<TextureView>(Resource.Id.textureQRCodeScan);
                    var imageQRCodeScan = FindViewById<TextureView>(Resource.Id.imageQRCodeScan);
                    
                });
            }), null, 0, 10000);