平滑捏缩放和平移在Windows Phone 8缩放、平滑、Phone、Windows

2023-09-03 00:46:13 作者：✿鹿✿

我已经成功地实现捏缩放和挂钩到在ManipulationDelta和在ManipulationStarted事件（图像控制上）平移：

I've managed to implement pinch zooming and panning by hooking up to the ManipulationDelta and ManipulationStarted events (on an image control):

    private void image_OnManipulationDelta(object sender, ManipulationDeltaEventArgs e)
    {
        var transform = (CompositeTransform)image.RenderTransform;

        // pan
        transform.TranslateX = _translationX + e.CumulativeManipulation.Translation.X;
        transform.TranslateY = _translationY + e.CumulativeManipulation.Translation.Y;

        // zoom
        if (e.PinchManipulation != null)
        {
            transform.CenterX = e.PinchManipulation.Original.Center.X;
            transform.CenterY = e.PinchManipulation.Original.Center.Y;

            transform.ScaleX = _scaleX * e.PinchManipulation.CumulativeScale;
            transform.ScaleY = _scaleY * e.PinchManipulation.CumulativeScale;
        }
    }

    private void image_OnManipulationStarted(object sender, ManipulationStartedEventArgs e)
    {
        // the user has started manipulating the screen, set starting points
        var transform = (CompositeTransform)image.RenderTransform;
        _scaleX = transform.ScaleX;
        _scaleY = transform.ScaleY;
        _translationX = transform.TranslateX;
        _translationY = transform.TranslateY;
    }

不过，相比于Windows Phone的用户界面的其余部分的光滑感觉很平静和僵硬。有在运动没有惯性。

But the compared to the smoothness of the rest of the windows phone UI it feels very placid and stiff. There is no inertia in the movement.

有没有一种方法，使动作更加顺畅？使用动画和故事很长的路要走呢？我一直使用滚动至少获得平滑移动，但随后在ManipulationDelta事件不触发正确尝试。

Is there a way to make the movements more smooth? Is using animations and storyboards a way to go about it? I've tried using ScrollView for at least getting smooth panning but then the ManipulationDelta events are not firing correctly.

平滑捏缩放和平移在Windows Phone 8缩放、平滑、Phone、Windows

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