4 回答
TA贡献1773条经验 获得超3个赞
隐藏和显示方法上的动画?
根据我的研究和这篇 stackoverflow 帖子,如果我们使用and$(selector).animate()而不是, 我们将对动画有更多的控制。$(selector).hide()$(selector).show()
将容器元素用于动画
我已经分离了 css 样式并为动画本身添加了叠加层以防止容器折叠(如果是,元素将没有高度display: none)。这可能有用或没有用,这取决于您的目标。您仍然可以隐藏它们,因此使用此方法没有任何缺点。将动画与容器分开可能很有用。
恢复动画的时间问题
如果其中一个计时器恰好在动画期间停止并恢复,则动画仍将具有相同的持续时间“更短的距离”,从而导致动画速度变慢。
但是,如果我们重置 的动画timer1,就像您在示例中所做的那样,那么这不是问题,否则,我们必须根据动画进度和总动画长度调整动画持续时间(您可以在下面的脚本)。
只是为了好玩 - 显示时间
通常情况下,计时器会显示时间,因此我将动画的持续时间添加到叠加层上。这只是您可能想要添加的简单添加(加上样式)。动画的持续时间可以通过数据持续时间(以毫秒为单位)在计时器元素上设置。
$('document').ready(function() {
ResetAll();
});
function TimeLeft(id, initialTime) {
const $timer = $('#' + id);
const $overlay = $timer.find('.overlay');
const percentageToGo = (parseInt($overlay.css('width')) / parseInt($timer.css('width')));
return percentageToGo * initialTime;
}
function StartTimer(id, onComplete = null) {
const $timer = $('#' + id);
const $overlay = $timer.find('.overlay');
const duration = $timer.data('duration');
const time = TimeLeft(id, duration);
$overlay.animate({
width: '0%'
}, {
duration: time,
easing: 'linear',
step: function() {
$overlay.html(Math.round(TimeLeft(id, duration)) / 1000);
},
complete: function() {
// $timer.css('display', 'none'); // remove all comments to hide the timer element completly
$overlay.html('');
if (onComplete && typeof onComplete === 'function') {
onComplete();
}
}
});
}
function StopTimer(id) {
$('#' + id + ' .overlay').stop(true, false);
}
function ResetTimer(id) {
const $timer = $('#' + id);
const $overlay = $timer.find('.overlay');
$overlay.stop(true).css('width', '100%');
// $timer.css('display', 'block'); // remove all comments to hide the timer element completly
$overlay.html(Math.round(TimeLeft(id, $timer.data('duration'))) / 1000);
}
function StopTimer1AndStartTimer2() {
ResetTimer('timer1');
ResetTimer('timer2');
StartTimer('timer2', function() {
// $('#timer2').css('display', 'none'); // remove all comments to hide the timer element completly
StartTimer('timer1');
});
}
function ResetAll() {
ResetTimer('timer1');
ResetTimer('timer2');
// $('.timer').css('display', 'block'); // remove all comments to hide the timer element completly
}
.timer {
position: relative;
height: 30px;
width: 100%;
z-index: 1;
}
.overlay {
color: white;
position: absolute;
width: 100%;
top: 0;
left: 0;
bottom: 0;
z-index: -1;
}
#timer1 .overlay {
background-color: red;
}
#timer2 .overlay {
background-color: blue;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.12.1/jquery.min.js"></script>
<div id="timer1" data-duration="5000" class="timer">
<div class="overlay"></div>
</div>
<div id="timer2" data-duration="3000" class="timer">
<div class="overlay"></div>
</div>
<p>This first button is probably what you want, the rest is extra:</p>
<button onclick="StopTimer1AndStartTimer2();">Stop Timer1 - Reset Timer1 - Start Timer2 - on complete Start Timer2</button>
<button onclick="StartTimer('timer1');">Start/Resume Timer1</button>
<button onclick="StartTimer('timer2');">Start/Resume Timer2</button>
<button onclick="StartTimer('timer1'); StartTimer('timer2');">Start/Resume All</button>
<button onclick="StopTimer('timer1');">Stop Timer1</button>
<button onclick="StopTimer('timer2');">Stop Timer2</button>
<button onclick="StopTimer('timer1'); StopTimer('timer2');">Stop All</button>
<button onclick="ResetTimer('timer1');">Reset Timer1</button>
<button onclick="ResetTimer('timer2');">Reset Timer2</button>
<button onclick="ResetAll();">Reset All</button>
TA贡献1772条经验 获得超7个赞
您可以在开头.clone() timer1 并在 timer2 效果结束时使用.replaceWith()将其重置为初始值:
var initialValue = null;
function StartTimer1() {
if (initialValue == null) {
initialValue = $("#timer1").clone();
} else {
$("#timer1").replaceWith(initialValue);
}
$("#timer1").show().width("100%");
$("#timer1").hide({
effect: "blind",
easing: "linear",
duration: 5000,
direction: "left",
complete: function () {
}
});
}
function StopTimer1(){
$("#timer1").stop(true, false);
$("#timer2").hide({
effect: "blind",
easing: "linear",
duration: 2000,
direction: "left",
complete: function () {
StartTimer1();
}
});
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<div id="timer1" style="height:30px; width:100%; background-color:red"></div>
<div id="timer2" style="height:30px; width:100%; background-color:blue"></div>
Click First button, then click second, then click first again
<button onclick="StartTimer1();">Start Timer1</button><button onclick="StopTimer1();">Stop Timer1 and Start Timer2</button>
TA贡献1804条经验 获得超7个赞
用于.stop(true, true)去除占位符 ( .stop( [clearQueue ] [, jumpToEnd ] ))。jumpToEnd将隐藏它,所以再次显示它,并在 timer2 结束后回调它:
function StartTimer1() {
$("#timer1").hide({
effect: "blind",
easing: "linear",
duration: 5000,
direction: "left",
complete: function() {}
});
}
function StopTimer1() {
$("#timer1").stop(true, true).show();
$("#timer2").hide({
effect: "blind",
easing: "linear",
duration: 2000,
direction: "left",
complete: function() {
StartTimer1()
}
});
}
按下按钮后立即重置红色条的示例:
function StartTimer1() {
$("#timer1").hide({
effect: "blind",
easing: "linear",
duration: 5000,
direction: "left",
complete: function() {}
});
}
function StopTimer1() {
$("#timer1").stop(true, true).show();
$("#timer2").hide({
effect: "blind",
easing: "linear",
duration: 2000,
direction: "left",
complete: function() {
StartTimer1()
}
});
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<div id="timer1" style="height:30px; width:100%; background-color:red">
</div>
<div id="timer2" style="height:30px; width:100%; background-color:blue">
</div>
Click First button, then click second, then click first again
<button onclick="StartTimer1();">
Start Timer1
</button>
<button onclick="StopTimer1();">
Stop Timer1 and Start Timer2
</button>
如果你想在蓝色完成动画后重置红色条:
蓝色条完成后使用.stop(true, false);并重置样式 ( )。.attr("style"
function StartTimer1() {
$("#timer1").hide({
effect: "blind",
easing: "linear",
duration: 5000,
direction: "left",
complete: function() {}
});
}
function StopTimer1() {
$("#timer1").stop(true, false);
$("#timer2").hide({
effect: "blind",
easing: "linear",
duration: 2000,
direction: "left",
complete: function() {
$("#timer1").attr("style", "height:30px; width:100%; background-color:red");
StartTimer1();
}
});
}
function StartTimer1() {
$("#timer1").hide({
effect: "blind",
easing: "linear",
duration: 5000,
direction: "left",
complete: function() {}
});
}
function StopTimer1() {
$("#timer1").stop(true, false);
$("#timer2").hide({
effect: "blind",
easing: "linear",
duration: 2000,
direction: "left",
complete: function() {
$("#timer1").attr("style", "height:30px; width:100%; background-color:red");
StartTimer1();
}
});
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<div id="timer1" style="height:30px; width:100%; background-color:red">
</div>
<div id="timer2" style="height:30px; width:100%; background-color:blue">
</div>
Click First button, then click second, then click first again
<button onclick="StartTimer1();">
Start Timer1
</button>
<button onclick="StopTimer1();">
Stop Timer1 and Start Timer2
</button>
TA贡献2036条经验 获得超8个赞
重置动画:
// Remove style
$("#timer-bar").removeAttr('style');
// Set initial width
$("#timer-bar").show().width("100%");
要么:
$('#timer-bar').stop(true).css('width', '100%');
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