Delayed Animations: Difference between revisions

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'''English''' [[Delayed Animations Spanish|Spanish]] [[Delayed Animations Italian|Italian]] [[Delayed Animations French|French]] [[Delayed Animations Japanese|日本語]] [[Delayed Animations Bulgarian|Български]] [[Delayed Animations Russian|Русский]] [[Delayed Animations Persian|فارسی]]
{{LangSwitch}}
[[Category:Learning]]
[[Category:HowTo]]
[[Category:Developing_with_Qt::Qt Quick]]
__NOEDITSECTION__
Ever want the user to click something and then play out a series of delayed events? For example, opening a list and closing it again?
 
The following example starts with a red circle. When the user clicks on the circle, it animates in to a rectangle and triggers a timer. Once the timer triggers, it animates the rectangle back in to a circle again.
 
<code>
import QtQuick 1.0


=Delayed Animations=
Rectangle {
    property int time: 800
    property int size: 300


Ever want the user to click something and then play out a series of delayed events? For example, opening a list and closing it again?
    width: size
    height: size
    radius: size
    color: "red"


The following example starts with a red circle. When the user clicks on the circle, it animates in to a rectangle and triggers a timer. Once the timer triggers, it animates the rectangle back in to a circle again.
    Behavior on radius {
        NumberAnimation {
            duration: time
        }
    }


Note that if you just wanted the animation to follow directly after the previous one you could use SequentialAnimation. This example is rather to show arbitrary delays in animations.
    Timer {
        id: reset
        interval: time


Related forum thread: http://developer.qt.nokia.com/forums/viewthread/2085/
        onTriggered: parent.radius=size
    }


===Categories:===
    MouseArea {
        anchors.fill: parent
       
        onClicked: {
            parent.radius=0
            reset.start()
        }
    }
}
</code>


* [[:Category:Developing with Qt|Developing_with_Qt]]
Note that if you just wanted the animation to follow directly after the previous one you could use {{DocLink|SequentialAnimation}}. This example is rather to show arbitrary delays in animations.
** [[:Category:Developing with Qt::Qt-Quick|Qt Quick]]
* [[:Category:HowTo|HowTo]]
* [[:Category:Learning|Learning]]

Latest revision as of 13:51, 28 June 2015

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Ever want the user to click something and then play out a series of delayed events? For example, opening a list and closing it again?

The following example starts with a red circle. When the user clicks on the circle, it animates in to a rectangle and triggers a timer. Once the timer triggers, it animates the rectangle back in to a circle again.

import QtQuick 1.0

Rectangle {
    property int time: 800
    property int size: 300

    width: size
    height: size
    radius: size
    color: "red"

    Behavior on radius { 
        NumberAnimation { 
            duration: time 
        } 
    }

    Timer {
        id: reset
        interval: time

        onTriggered: parent.radius=size
    }

    MouseArea {
        anchors.fill: parent
        
        onClicked: {
            parent.radius=0
            reset.start()
        }
    }
}

Note that if you just wanted the animation to follow directly after the previous one you could use SequentialAnimation. This example is rather to show arbitrary delays in animations.