c# - 缩放 WP7 应用程序

Question

我正在寻找允许双指缩放的 WP7 应用程序控件。我在像 DeepZoomContener 这样的 codeplex smth 上看到过，但效果不佳。有任何想法吗？我只需要通过捏合即可缩放到 150%。

问候。

Answer 1

Thx Mick 但这有点弄乱了我的布局。我做了更简单的事情。

我使用 Silverlight Toolkit for WP7并将 pinch GetureListener 添加到我的网格中

    <toolkit:GestureService.GestureListener>
        <toolkit:GestureListener PinchDelta="GestureListener_PinchDelta" />
    </toolkit:GestureService.GestureListener>

事件中的代码

private void GestureListener_PinchDelta(object sender, PinchGestureEventArgs e)
    {
        if (e.DistanceRatio < 1.0 || e.DistanceRatio > 1.4)
        {
            return;
        }
        // Create the animation for pinch
        Storyboard storyboard = new Storyboard();
        DoubleAnimation pinchXAnimation = new DoubleAnimation();
        pinchXAnimation.To = e.DistanceRatio;
        pinchXAnimation.Duration = TimeSpan.FromSeconds(0.3);
        storyboard.Children.Add(pinchXAnimation);
        Storyboard.SetTargetProperty(pinchXAnimation, new PropertyPath("GridScaling.ScaleX"));
        Storyboard.SetTarget(pinchXAnimation, GridScaling);

        DoubleAnimation pinchYAnimation = new DoubleAnimation();
        pinchYAnimation.To = e.DistanceRatio;
        pinchYAnimation.Duration = TimeSpan.FromSeconds(0.3);
        storyboard.Children.Add(pinchYAnimation);
        Storyboard.SetTargetProperty(pinchYAnimation, new PropertyPath("GridScaling.ScaleY"));
        Storyboard.SetTarget(pinchYAnimation, GridScaling);

        storyboard.Begin();
    }