使圖標閃爍 wpf 應用程序

Question

我有一個圖標。

 imgstop.Visibility = System.Windows.Visibility.Visible;

如何使圖標看起來在閃爍？

我嘗試了以下代碼：

  public void blinkIconStopHide()
        {
            blinkTimerStop.Enabled = true;
            blinkTimerStop.Interval = 15000;
             imgstop.Visibility = System.Windows.Visibility.Hidden;
             blinkTimerStop.Elapsed += new System.Timers.ElapsedEventHandler(tick_to_hideStop);  
        }
        private void tick_to_hideStop(object sender, EventArgs e)
        {
            blinkIconStopShow();
        }  
        public void blinkIconStopShow()
        {
            blinkTimerStop.Enabled = true;
            blinkTimerStop.Interval = 15000;
            imgstop.Visibility = System.Windows.Visibility.Visible;
            blinkTimerStop.Elapsed += new System.Timers.ElapsedEventHandler(tick_to_showStop);   
        }
        private void tick_to_showStop(object sender, EventArgs e)
        {
            blinkIconStopHide();
        }  

但屏幕上似乎沒有任何東西在閃爍。

Answer 1

動畫圖標/圖像怎么樣？

XAML

<BeginStoryboard>
   <Storyboard>
       <DoubleAnimation From="1" To="0" Storyboard.TargetProperty="Opacity" 
                        Duration="0:0:0.4" RepeatBehavior="Forever"
                        AutoReverse="True"/>
   </Storyboard>
</BeginStoryboard>

C＃

DoubleAnimation da = new DoubleAnimation();
da.From = 1;
da.To = 0;
da.Duration = new Duration(TimeSpan.FromSeconds(2));
da.AutoReverse = true;
da.RepeatBehavior = RepeatBehavior.Forever;
yourimage.BeginAnimation(OpacityProperty, da);

Answer 2

以下代碼將通過切換可見性讓您的圖標每秒閃爍一次。 通過更改 DispatcherTimer 的間隔，您可以更快或更慢地閃爍圖標。

DispatcherTime _blinkTimer = new DispatcherTimer();

public void StartBlinking() {
  _blinkTimer.Interval = TimeSpan.FromSeconds(1);
  _blinkTimer.Elapsed += ToggleIconVisibility;
  _blinkTimer.Start();
}

public void StopBlinking() {
  _blinkTimer.Stop();
  _blinkTimer.Elapsed -= ToggleIconVisibility;
}

private void ToggleIconVisibility(object sender, EventArgs e)
{
  imgstop.Visibility = !imgstop.Visibility;
}