metro开发-触控输入示例

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1、触控输入王祖康课程目标通过这一节课，对Windows8中几种手势概念有了更深的理解，掌握如何从代码处理手势，了解Point概念，掌握如何处理Point中事件。大纲GesturePointer12Gesture你知道几种平板手势？Windows8支持的手势按下并保持以了解相关信息轻扫进行选择通过滑动进行拖动点击为主要操作通过收缩进行缩放通过旋转来旋转内容从边缘轻扫获得应用和系统UI演示Windows8支持的手势如何处理Windows8Style应用中的手势GestureAPIManipulationAPIManipulationStartingManipulat

2、ionStartedManipulationDeltaManipulationCompletedManipulationInertiaStarting……..HoldAPIHolding用户手势轻扫从边缘轻扫按下并保持点击滑行拖动缩放旋转TapAPITappedDoubleTapped……点击手势IXAML:C#:privatevoidOpeningMessage_Tapped(objectsender,TappedRoutedEv

3、entArgse){}点击手势IIXAML:C#:privatevoidOpeningMessage_DoubleTapped(objectsender,DoubleTappedRoutedEventArgse){}按下并保持手势XAML:C#:privatevoidLayoutRoot_Holding

4、(objectsender,HoldingRoutedEventArgse){}滑行拖动手势XAML:C#:privatevoidPhoto_ManipulationDelta(objectsender,ManipulationDeltaRoutedEventArgse){if(!_annotating){//TranslatethephotoPhotoTransform.Translat

5、eX+=e.Delta.Translation.X;PhotoTransform.TranslateY+=e.Delta.Translation.Y;}}缩放手势XAML:C#:privatevoidPhoto_ManipulationDelta(objectsender,ManipulationDeltaRoutedEventArgse){if(!_annotating){//Scale

6、thephotoPhotoTransform.ScaleX*=e.Delta.Scale;PhotoTransform.ScaleY*=e.Delta.Scale;//ConstrainscalefactorPhotoTransform.ScaleX=Math.Min(PhotoTransform.ScaleX,4.0);PhotoTransform.ScaleY=Math.Min(PhotoTransform.ScaleY,4.0);PhotoTransform.ScaleX=Math.Max(PhotoTransform.ScaleX,1.0);Photo

7、Transform.ScaleY=Math.Max(PhotoTransform.ScaleY,1.0);}}旋转手势XAML:C#:privatevoidPhoto_ManipulationDelta(objectsender,ManipulationDeltaRoutedEventArgse){if(!_annotating){PhotoTransform.Rotation+=e.De

8、lta.Rotation*180/Ma