qml Animation Simple number animation

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Example

One of the very basic animations that you could come across is the NumberAnimation. This animation works by changing the numeric value of a property of an item from an initial state to a final state. Consider the following complete example:

import QtQuick 2.7    
import QtQuick.Controls 2.0    

ApplicationWindow {
    visible: true
    width: 400
    height: 640

    Rectangle{
        id: rect
        anchors.centerIn: parent
        height: 100
        width: 100
        color: "blue"
        MouseArea{
            anchors.fill: parent
            onClicked: na.running = true
        }

        NumberAnimation {
            id: na    //ID of the QML Animation type  
            target: rect    //The target item on which the animation should run  
            property: "height"    //The property of the target item which should be changed by the animator to show effect  
            duration: 200    //The duration for which the animation should run  
            from: rect.height    //The initial numeric value of the property declared in 'property'
            to: 200    //The final numeric value of the property declared in 'property'
        }
    }
}


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