[Problem]QML PinchArea can't receive touch event

rstalin

HI All!

I try pincharea in my project, but it's seem can't receive the event.
I write console.log in pincharea but show nothing.
The same code I try in another new project that can work.
There are something let pincharea can't receive touch event.
what could cause this happen?@@

@import QtQuick 1.1

Item {
width: 100
height: 62

     Flickable
     {
         id:flickable
         width: 360; height: 520
         
         contentWidth: Math.max(flickable.width,pix.width)
         contentHeight: Math.max(flickable.height,pix.height)

        Image
        {
          id:pix
          cache: false
          source: "images/22.png"

        }


        PinchArea {
                id: pincharea

                property double __oldZoom
                anchors.fill: parent
                pinch.target:pix

                function calcZoomDelta(zoom, percent)
                {
                    return zoom + Math.log(percent)/Math.log(2)
                }
                onPinchStarted: {
                    __oldZoom = pinch.scale
                    console.log(pinch.scale)
                }
                onPinchUpdated: {
                    pix.height = pix.height*calcZoomDelta(__oldZoom, pinch.scale)
                   pix.width = pix.width*calcZoomDelta(__oldZoom, pinch.scale)
                    console.log(pinch.scale)
                }
                onPinchFinished: {
                    pix.height = pix.height*calcZoomDelta(__oldZoom, pinch.scale)
                    pix.width = pix.width*calcZoomDelta(__oldZoom, pinch.scale)
                    console.log(pinch.scale)
                }
            }

        State
        { name: 'loaded'; when: pix.status = Image.Ready
           PropertyChanges { target: pincharea; pinch.active:true }
        }





 }

}@