缩放 WP7 应用程序

问题描述

我正在寻找允许捏合缩放的 WP7 应用程序控件.我在像 DeepZoomContener 这样的 codeplex 上看到过，但效果不佳.有任何想法吗?我只需要通过捏合将其放大到 150%.

I'm lookin for a control for a WP7 app that allows zooming by pinch. I saw on codeplex smth like DeepZoomContener but is doesn't do well. Any ideas? I just need zoom to 150% by pinching that's all.

问候.

推荐答案

Thx Mick 但这与我的布局有点混乱.我做了一些更简单的事情.

Thx Mick but this messed up with my layout a bit. I did something more simple.

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

I use the Silverlight Toolkit for WP7 and add the pinch GetureListener to my grid

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

和事件中的代码

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();
    }

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