RepositionThemeTransition等價於WPF

在windows應用商店中，可以將RepositionThemeTransition添加到UI元素中，以便在它們的位置發生變化時能夠立即使用，而不是傳送。還有其他類型的轉換。RepositionThemeTransition等價於WPF

<Rectangle> 
    <Rectangle.Transitions> 
     <TransitionCollection> 
      <RepositionThemeTransition/> 
     </TransitionCollection> 
    </Rectangle> 
</Rectangle>

WPF似乎不支持此功能。有沒有辦法做同樣的事情？

來源

2012-11-21 Craig Gidney

我最終只是通過在LayoutUpdated事件中應用動畫來模擬自己的功能，這些動畫最初抵消了位置的變化。下面的代碼：

public static void AddRepositionTransitionsUsingRenderTransform(this FrameworkElement control, bool x = true, bool y = true, CancellationToken lifetime = default(CancellationToken)) { 
    if (control == null) throw new ArgumentNullException("control"); 
    var approachPeriod = TimeSpan.FromMilliseconds(100); 

    // animate when positions change, to give a 'swooping' effect instead of teleporting 
    var transform = new TranslateTransform(); 
    var oldPosition = May<Point>.NoValue; 
    EventHandler updated = (sender, arg) => { 
     // determine where the control has moved to 
     var newPosition = control.ActualWidth == 0 || control.ActualHeight == 0 || control.Visibility != Visibility.Visible 
         ? May<Point>.NoValue 
         : control.TranslatePoint(new Point(-transform.X, -transform.Y), Application.Current.MainWindow); 
     if (oldPosition == newPosition) return; 

     // adjust the animation to initially cancel the change in position, and finish at the new final position after the approach period 
     var dif = (from o in oldPosition 
        from n in newPosition 
        select new Point(n.X - o.X, n.Y - o.Y) 
        ).ElseDefault(); 
     if (x) transform.BeginAnimation(TranslateTransform.XProperty, new DoubleAnimation(transform.X - dif.X, 0, approachPeriod)); 
     if (y) transform.BeginAnimation(TranslateTransform.YProperty, new DoubleAnimation(transform.Y - dif.Y, 0, approachPeriod)); 

     oldPosition = newPosition; 
    }; 

    // register for events and replace transform, until lifetime ends 
    var oldTransform = control.RenderTransform; 
    control.RenderTransform = transform; 
    control.LayoutUpdated += updated; 
    lifetime.Register(() => { 
     control.LayoutUpdated -= updated; 
     control.RenderTransform = oldTransform; 
    }); 
}

需要注意的是「可以」自定義選項類型，所以這部分將不會編譯。你可以使用類型Point？相反，使用顯式空檢查而不是查詢。

來源

2012-11-22 19:27:55

我想你可能要找的是FluidMoveBehavior行爲Blend's SDK。網上有幾個教程 - here's one以防您不熟悉行爲或此特定行爲。

來源

2012-11-21 23:06:17

你能舉一個它如何使用的例子嗎？ –

我有點不清楚如何在WPF項目中使用blend的sdk。當我嘗試打開視覺工作室的混合時，我甚至無法創建一個新項目（新項目對話框的確定按鈕什麼都不做）... –

RepositionThemeTransition等價於WPF

回答

相關問題