Windows商店应用程序捏缩放处理

Question

我已按照msdn关于GestureRecognizer的说明进行操作！处理捏客人。但是，我无法调用ManipulationUpdated。有什么我想念的吗？

在我的C#课程中，

    `private GestureRecognizer gesture = new GestureRecognizer();`

在我的构造函数中：

    gesture.GestureSettings = GestureSettings.ManipulationScale;
    gesture.ManipulationUpdated += gesture_ManipulationUpdated;
    gesture.ManipulationStarted += gesture_ManipulationStarted;
    gesture.ManipulationCompleted += gesture_ManipulationCompleted;

在我的指针事件中：

 private void PointerPressed_1(object sender, PointerRoutedEventArgs e)
{
   var point = e.GetIntermediatePoints(null);
   gesture.ProcessDownEvent(point[0]);
}

private void PointerMoved_1(object sender, PointerRoutedEventArgs e)
{
   gesture.ProcessMoveEvents(e.GetIntermediatePoints(null));
}

private void PointerReleased_1(object sender, PointerRoutedEventArgs e)
{
    var point = e.GetIntermediatePoints(null);
    gesture.ProcessUpEvent(point[0]);
    gesture.CompleteGesture();
}

void gesture_ManipulationCompleted(GestureRecognizer sender, ManipulationCompletedEventArgs args)
    {
        System.Diagnostics.Debug.WriteLine("Manipulation Completed {0}", args.Cumulative.Scale);
    }

void gesture_ManipulationStarted(GestureRecognizer sender, ManipulationStartedEventArgs args)
    {
        System.Diagnostics.Debug.WriteLine("Manipulation Started {0}", args.Cumulative.Scale);
    }

void gesture_ManipulationUpdated(GestureRecognizer sender, ManipulationUpdatedEventArgs args)
    {
        System.Diagnostics.Debug.WriteLine("Manipulation Updated {0}", args.Cumulative.Scale);
    }

Answer 1

尝试打开手势设置属性中的所有标志。如链接中所述：

gesture.gestureSettings =
        Windows.UI.Input.GestureSettings.manipulationRotate |
        Windows.UI.Input.GestureSettings.manipulationTranslateX |
        Windows.UI.Input.GestureSettings.manipulationTranslateY |
        Windows.UI.Input.GestureSettings.manipulationScale |
        Windows.UI.Input.GestureSettings.manipulationRotateInertia |
        Windows.UI.Input.GestureSettings.manipulationScaleInertia |
        Windows.UI.Input.GestureSettings.manipulationTranslateInertia |
        Windows.UI.Input.GestureSettings.tap;