用Popup仿侧滑菜单

////侧滑菜单
/*
    MeumItem{
        id:menu_
    }
*/
Popup{
    id:drawer;
    width: parent.width
    height: parent.height
     closePolicy: Popup.CloseOnEscape | Popup.CloseOnPressOutside|Popup.CloseOnReleaseOutside
     background: Item{}
    dim:true
    padding: 0
    MouseArea{
        anchors.fill: parent
        onClicked: {
            if(mouse.x>contenitem.width)
            {
                drawer.close()
            }
        }
    }
    FontMetrics {
        id: fontMetrics
        font.family: Flat.FlatStyle.fontFamily
    }

    Rectangle{
        id:contenitem
        radius: 10
        width: parent.width*0.7
        height: parent.height
        x: drawer.x+drawer.width
        y: drawer.y+drawer.height
        state: visible==true?"show":""
        Column{

            Button{
                id:exitbtn
                width: 100
                height: 60
                anchors.horizontalCenter: parent.horizontalCenter
                text:"退出"
                onClicked: {
                    Qt.quit()
                }
            }


            Old.Button{

                width: 100
                isDefault:true
                height: Flat.FlatStyle.scaleFactor*60
                anchors.horizontalCenter: parent.horizontalCenter
                text:""+Flat.FlatStyle.scaleFactor
                onClicked: {
                    Qt.quit()
                }
            }
        }



        states: State {
                name: "show"
                PropertyChanges {
                    target: contenitem
                    x: drawer.x
                    y: drawer.y
                }
            }

        Behavior on x {
            SpringAnimation{ spring: 3; damping: 0.1 ;}
        }
        Behavior on y {
            SpringAnimation { spring: 3; damping: 0.2 }

        }


    }

    onOpened: {
    }
    onClosed: {
    }
}