我希望我的页面每隔一段时间重新加载一次,但如果用户在5分钟内处于非活动状态,我想阻止页面重新加载。我在http://codepen.io/tetonhiker/pen/gLeRmw上有一个例子。
现在它每10秒刷新一次。我再次希望它在用户处于非活动状态时刷新5分钟后停止说。我怎样才能做到这一点?
var timer = null;
$(function() {
// Get the time to stop the effect
var stopTime = new Date();
stopTime.setMinutes(stopTime.getMinutes() + 5);
// Get a reference to the timer so it can be cancelled later
timer = setInterval(function() {
// Check to see if the timer should stop
var currentTime = new Date();
if(currentTime < stopTime){
var randomnumber = Math.floor(Math.random() * 100);
$('#show').text(
'I am getting refreshed every minute..! Random Number ==> ' + randomnumber);
} else {
// Stop the timer
clearInterval(timer);
}
}, 60 * 1000);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="show" align="center"></div>
<div align="center">
</div>
答案 0 :(得分:3)
只需设置一个等于计时器ID的变量,并在满足条件时取消:
var timer = null;
// As soon as the document is ready:
$(function() {
// Activate the timer:
startClock();
});
// And, when the user interacts with the page, start over
$(document).on("mousemove click", function(){
// Stop the previously running timer
clearInterval(timer);
// Start the clock over again:
startClock();
});
function startClock(){
// Get the time to stop the effect
var stopTime = new Date();
stopTime.setMinutes(stopTime.getMinutes() + 5);
// Get a reference to the timer so it can be cancelled later
timer = setInterval(function() {
// Check to see if the timer should stop
var currentTime = new Date();
if(currentTime < stopTime){
var randomnumber = Math.floor(Math.random() * 100);
$('#show').text("I am getting refreshed every 10 seconds..! " +
"Random Number ==> " + randomnumber);
} else {
// Stop the timer
clearInterval(timer);
}
}, 10000);
}
答案 1 :(得分:2)
您可以通过几种不同的方式实现这一目标。首先,我假设您已经存在逻辑,以检查一个人是否已经空闲了5分钟(因为这样可以更容易回答:D)
您可以做的是当您调用setInterval时,将其结果存储在变量中。此时如果用户空闲5分钟,则window.clearInterval(thatVariable)结束循环。
否则,将逻辑更改为使用setTimeout,并且只要用户没有空闲5分钟,就让它以递归方式调用自身。
答案 2 :(得分:0)
<script type="text/javascript">
setTimeout(function () {
location.reload();
}, 60 * 1000);
</script>
setTimeout将在指定的毫秒数后reload页面,因此60 * 1000 = 1m。此外,由于页面正在刷新,因此将始终在页面加载时设置超时。
答案 3 :(得分:0)
一种简单的方法是将setInterval
与setTimeout
混合。
function refresh() {
var randomnumber = Math.floor(Math.random() * 100);
$('#show').text('I am getting refreshed every 10 seconds..! Random Number ==> ' + randomnumber);
}
var intervalId = setInterval(refresh, 10 * 1000);
setTimeout(function () {
clearInterval(intervalId);
alert('refresh stop!');
}, 5 * 60 * 1000);