Consider this simple 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: parent.width
color: "blue"
}
}
In the above example, the width of Rectangle
is bound to that of it's parent. If you change the width of the running application window, the width of rectangle also changes.