SeekControl.qml Example File

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 import QtQuick 2.0

 Item {
     id: seekControl
     height: Math.min(parent.width, parent.height) / 20
     property int duration: 0
     property int playPosition: 0
     property int seekPosition: 0
     property bool enabled: true
     property bool seeking: false

     Rectangle {
         id: background
         anchors.fill: parent
         color: "white"
         opacity: 0.3
         radius: parent.height / 15
     }

     Rectangle {
         id: progressBar
         anchors { left: parent.left; top: parent.top; bottom: parent.bottom }
         width: seekControl.duration == 0 ? 0 : background.width * seekControl.playPosition / seekControl.duration
         color: "black"
         opacity: 0.7
     }

     Text {
         width: 90
         anchors { left: parent.left; top: parent.top; bottom: parent.bottom; leftMargin: 10 }
         horizontalAlignment: Text.AlignLeft
         verticalAlignment: Text.AlignVCenter
         color: "white"
         smooth: true
         text: formatTime(playPosition)
     }

     Text {
         width: 90
         anchors { right: parent.right; top: parent.top; bottom: parent.bottom; rightMargin: 10 }
         horizontalAlignment: Text.AlignRight
         verticalAlignment: Text.AlignVCenter
         color: "white"
         smooth: true
         text: formatTime(duration)
     }

     Rectangle {
         id: progressHandle
         height: parent.height
         width: parent.height / 2
         color: "white"
         opacity: 0.5
         anchors.verticalCenter: progressBar.verticalCenter
         x: seekControl.duration == 0 ? 0 : seekControl.playPosition / seekControl.duration * background.width

         MouseArea {
             id: mouseArea
             anchors { horizontalCenter: parent.horizontalCenter; bottom: parent.bottom }
             height: parent.height
             width: parent.height * 2
             enabled: seekControl.enabled
             drag {
                 target: progressHandle
                 axis: Drag.XAxis
                 minimumX: 0
                 maximumX: background.width
             }
             onPressed: {
                 seekControl.seeking = true;
             }
             onCanceled: {
                 seekControl.seekPosition = progressHandle.x * seekControl.duration / background.width
                 seekControl.seeking = false
             }
             onReleased: {
                 seekControl.seekPosition = progressHandle.x * seekControl.duration / background.width
                 seekControl.seeking = false
                 mouse.accepted = true
             }
         }
     }

     Timer { // Update position also while user is dragging the progress handle
         id: seekTimer
         repeat: true
         interval: 300
         running: seekControl.seeking
         onTriggered: {
             seekControl.seekPosition = progressHandle.x*seekControl.duration / background.width
         }
     }

     function formatTime(timeInMs) {
         if (!timeInMs || timeInMs <= 0) return "0:00"
         var seconds = timeInMs / 1000;
         var minutes = Math.floor(seconds / 60)
         seconds = Math.floor(seconds % 60)
         if (seconds < 10) seconds = "0" + seconds;
         return minutes + ":" + seconds
     }
 }