我需要在信号(警告信号)来自 CAN 时在矩形内闪烁动画图像。当信号设置为警告状态时,动画工作正常,当信号按预期返回正常状态时,动画停止 但是,当出现警告信号并且我重新启动应用程序时,我发现图像没有闪烁。但是当我看到日志时,animation.running 属性是 true。
Rectangle {
id: mainRect
visible: warningState === normal || warningState === warning
Image {
id: warningIcon
source: //path
NumberAnimation {
id: warnAnimation
target: warningIcon;
property: "opacity";
from: 1.0; to: 0.0;
duration: 250; easing.type:
Easing.InQuad; loops: Animation.Infinite
running: warningState === warning
}
}
}
当我重新启动时打印日志时,状态为警告,并且 warnAnimation.running 为 true,但图标没有闪烁。 任何人都可以帮助我吗? 谢谢你
您可以考虑推迟
running
,直到您的申请准备就绪,例如:
NumberAnimation {
id: warnAnimation
target: warningIcon;
property: "opacity";
from: 1.0; to: 0.0;
duration: 250; easing.type:
Easing.InQuad; loops: Animation.Infinite
running: loaded && warningState === warning
property loaded: false
Component.onCompleted: loaded = true
}