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.seek()

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2023-12-01

.seek( time:*, suppressEvents:Boolean ) : *
不改变状态(播放、暂停、方向)的情况下直接跳转到某个时间点。

//跳转到第2秒
myAnimation.seek(2);
//跳转到第2秒,并且不阻止期间的函数、事件
myAnimation.seek(2, false);

必须设定时间点 返回self,方便链式设置
.seek()适用于TweenMaxTweenLite

.seek()的参数

参数名类型必填说明
timeNum/label跳转到的时间秒数(或TimelineLite/TimelineMax的label)
suppressEventsBoolean如果true(默认值),当播放头移动到time参数中定义的新位置时,不会触发任何事件或回调。

.seek() 示例


  








body {
	background-color: #f8f8f8;
	font-size: 16px;
}
#demo {
	width: 692px;
	height: 60px;
        background-color: #333;
	padding: 8px;
	margin-bottom: 10px;
}
.box {
	width: 50px;
	height: 50px;
	border-radius: 6px;
	margin-top: 4px;
	display: inline-block;
	position: absolute;
}
.green {
	background-color: #6fb936;
}
input[type="button"] {
	-webkit-appearance: button;
	padding: 8px;
	margin-right: 5px;
	margin-bottom: 5px;
}
box = document.getElementById("box"),
playBtn = document.getElementById("playBtn"),
pauseBtn = document.getElementById("pauseBtn"),
resumeBtn = document.getElementById("resumeBtn"),
reverseBtn = document.getElementById("reverseBtn"),
playFromBtn = document.getElementById("playFromBtn"),
reverseFromBtn = document.getElementById("reverseFromBtn"),
seekBtn = document.getElementById("seekBtn"),
timeScaleSlowBtn = document.getElementById("timeScaleSlowBtn"),
timeScaleNormalBtn = document.getElementById("timeScaleNormalBtn"),
timeScaleFastBtn = document.getElementById("timeScaleFastBtn"),
restartBtn = document.getElementById("restartBtn"),
tween = TweenLite.to(box, 6, {left:"632px", ease:Linear.easeNone});
playBtn.onclick = function() {
	//当前位置播放动画,如果动画播放完成, play() 无效
    tween.play();
}
pauseBtn.onclick = function() {
    tween.pause();
}
resumeBtn.onclick = function() {
    //当前位置继续动画.
    tween.resume();
}
reverseBtn.onclick = function() {
    tween.reverse();
}
playFromBtn.onclick = function() {
    //某时间点开始播放(秒).
    tween.play(5);
}
reverseFromBtn.onclick = function() {
    //某时间点开始返回 (秒).
    tween.reverse(1);
}
seekBtn.onclick = function() {
    //跳到特定时间 (秒)
    tween.seek(3);
}
timeScaleSlowBtn.onclick = function() {
    //减速.
    tween.timeScale(0.5);
}
timeScaleNormalBtn.onclick = function() {
    //恢复速度.
    tween.timeScale(1);
}
timeScaleFastBtn.onclick = function() {
    //加速.
    tween.timeScale(2);
}
restartBtn.onclick = function() {
    //重新开始.
    tween.restart();
}

.seek()返回值

.seek()的补充说明