property-animation.qml Example File

animation/basics/property-animation.qml
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import QtQuick 2.0 Item { id: window width: 320; height: 480 // Let's draw the sky... Rectangle { anchors { left: parent.left; top: parent.top; right: parent.right; bottom: parent.verticalCenter } gradient: Gradient { GradientStop { position: 0.0; color: "#14148c" } GradientStop { position: 1.0; color: "#14aaff" } } } // ...and the ground. Rectangle { anchors { left: parent.left; top: parent.verticalCenter; right: parent.right; bottom: parent.bottom } gradient: Gradient { GradientStop { position: 0.0; color: "#80c342" } GradientStop { position: 1.0; color: "#006325" } } } // The shadow for the smiley face Image { anchors.horizontalCenter: parent.horizontalCenter y: smiley.minHeight + 58 source: "images/shadow.png" // The scale property depends on the y position of the smiley face. scale: smiley.y * 0.5 / (smiley.minHeight - smiley.maxHeight) } Image { id: smiley property int maxHeight: window.height / 3 property int minHeight: 2 * window.height / 3 anchors.horizontalCenter: parent.horizontalCenter y: minHeight source: "images/face-smile.png" // Animate the y property. Setting loops to Animation.Infinite makes the // animation repeat indefinitely, otherwise it would only run once. SequentialAnimation on y { loops: Animation.Infinite // Move from minHeight to maxHeight in 300ms, using the OutExpo easing function NumberAnimation { from: smiley.minHeight; to: smiley.maxHeight easing.type: Easing.OutExpo; duration: 300 } // Then move back to minHeight in 1 second, using the OutBounce easing function NumberAnimation { from: smiley.maxHeight; to: smiley.minHeight easing.type: Easing.OutBounce; duration: 1000 } // Then pause for 500ms PauseAnimation { duration: 500 } } } }