hello.qml Example File

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  import QtQuick 2.0

  Rectangle {
      id: screen

      width: 320; height: 480
      color: "black"

      Item {
          id: container
          x: screen.width / 2; y: screen.height / 2

          Text {
              id: text
              anchors.centerIn: parent
              color: "white"
              text: "Hello world!"
              font.pixelSize: 32

              SequentialAnimation on font.letterSpacing {
                  loops: Animation.Infinite;
                  NumberAnimation { from: 0; to: 50; easing.type: Easing.InQuad; duration: 3000 }
                  ScriptAction {
                      script: {
                          container.y = (screen.height / 4) + (Math.random() * screen.height / 2)
                          container.x = (screen.width / 4) + (Math.random() * screen.width / 2)
                      }
                  }
              }

              SequentialAnimation on opacity {
                  loops: Animation.Infinite;
                  NumberAnimation { from: 1; to: 0; duration: 2600 }
                  PauseAnimation { duration: 400 }
              }
          }
      }
  }