Busy Indicator for QML

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QtQuick.Controls 1.3 come with the BusyIndicator. It is a simple and ready-to-use component. Here is a short example for how to use it:

import QtQuick 2.4 import QtQuick.Controls 1.3 import QtQuick.Window 2.2

ApplicationWindow {

   title: qsTr("Hello World")
   width: 640
   height: 480
   visible: true
   BusyIndicator {
      id: busyIndication
      anchors.centerIn: parent
      // 'running' defaults to 'true'
   Button {
       anchors.horizontalCenter: parent.horizontalCenter
       anchors.bottom: parent.bottom
       text: busyIndication.running ? "Stop Busy Indicator" : "Start Busy Indicator"
       checkable: true
       checked: busyIndication.running
       onClicked: busyIndication.running = !busyIndication.running