如何制作一个动画,其中一个项目会按比例放大,然后按比例缩小到其原始大小(从俯视图/鸟瞰图看“弹跳球”)。到目前为止,我只想出了如何通过修改parent.x和parent.y使用“行为x / y”创建单向动画的方法
例如...
Rectangle {
id: container;
width: 700
height: 700
function goForIt(parent) {
parent.x = (Math.floor(Math.random()*600));
parent.y = (Math.floor(Math.random()*600));
parent.width += 100;
parent.height += 100;
}
Image {
id: head;
source: "vlad.png";
height: 80;
width: 90;
MouseArea {
anchors.fill: parent
onClicked: goForIt(parent);
}
Behavior on x {
PropertyAnimation {
target: head;
properties: "x";
duration: 1000;
}
}
Behavior on y {
PropertyAnimation {
target: head;
properties: "y";
duration: 1000;
}
}
Behavior on height {
PropertyAnimation {
target: head;
properties: "height";
duration: 1000;
}
}
Behavior on width {
PropertyAnimation {
target: head;
properties: "width";
duration: 1000;
}
}
}
}
最佳答案
您可以将所需的动画创建为在OnClicked处理程序中启动的SequenceAnimation。
import QtQuick 1.0
Rectangle {
id: container;
width: 700
height: 700
function goForIt(parent) {
parent.x = (Math.floor(Math.random()*600));
parent.y = (Math.floor(Math.random()*600));
bounceAnimation.start();
}
Image {
id: head;
source: "vlad.png";
x: 0
y: 0
height: 80;
width: 90;
MouseArea {
anchors.fill: parent
onClicked: goForIt(parent);
}
Behavior on x {
PropertyAnimation {
target: head;
properties: "x";
duration: 1000;
}
}
Behavior on y {
PropertyAnimation {
target: head;
properties: "y";
duration: 1000;
}
}
transform: Scale {
id: scaleTransform
property real scale: 1
xScale: scale
yScale: scale
}
SequentialAnimation {
id: bounceAnimation
loops: 1
PropertyAnimation {
target: scaleTransform
properties: "scale"
from: 1.0
to: 2.0
duration: 500
}
PropertyAnimation {
target: scaleTransform
properties: "scale"
from: 2.0
to: 1.0
duration: 500
}
}
}
}
关于qt - 如何在QML中创建“按比例放大,然后按比例缩小”动画?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/8391733/