Is it possible to run two animations on two different elements simultaneously? I need the opposite of this question Jquery queueing animations.
I need to do something like this...
$('#first').animate({ width: 200 }, 200);
$('#second').animate({ width: 600 }, 200);
but to run those two at the same time. The only thing I could think of would be using setTimeout once for each animation, but I don't think it is the best solution.
yes there is!
$(function () {
$("#first").animate({
width: '200px'
}, { duration: 200, queue: false });
$("#second").animate({
width: '600px'
}, { duration: 200, queue: false });
});
That would run simultaneously yes.
what if you wanted to run two animations on the same element simultaneously ?
$(function () {
$('#first').animate({ width: '200px' }, 200);
$('#first').animate({ marginTop: '50px' }, 200);
});
This ends up queuing the animations.
to get to run them simultaneously you would use only one line.
$(function () {
$('#first').animate({ width: '200px', marginTop:'50px' }, 200);
});
Is there any other way to run two different animation on the same element simultaneously ?
I believe I found the solution in the jQuery documentation:
Animates all paragraph to a left style
of 50 and opacity of 1 (opaque,
visible), completing the animation
within 500 milliseconds. It also will
do it outside the queue, meaning it
will automatically start without
waiting for its turn.
$( "p" ).animate({
left: "50px", opacity: 1
}, { duration: 500, queue: false });
simply add: queue: false.
If you run the above as they are, they will appear to run simultaenously.
Here's some test code:
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script>
$(function () {
$('#first').animate({ width: 200 }, 200);
$('#second').animate({ width: 600 }, 200);
});
</script>
<div id="first" style="border:1px solid black; height:50px; width:50px"></div>
<div id="second" style="border:1px solid black; height:50px; width:50px"></div>
While it's true that consecutive calls to animate will give the appearance they are running at the same time, the underlying truth is they're distinct animations running very close to parallel.
To insure the animations are indeed running at the same time use:
$(function() {
$('#first').animate({..., queue: 'my-animation'});
$('#second').animate({..., queue: 'my-animation'});
$('#first,#second').dequeue('my-animation');
});
Further animations can be added to the 'my-animation' queue and all can be initiated provided the last animation dequeue's them.
Cheers,
Anthony
See this brilliant blog post about animating values in objects.. you can then use the values to animate whatever you like, 100% simultaneously!
http://www.josscrowcroft.com/2011/code/jquery-animate-increment-decrement-numeric-text-elements-value/
I've used it like this to slide in/out:
slide : function(id, prop, from, to) {
if (from < to) {
// Sliding out
var fromvals = { add: from, subtract: 0 };
var tovals = { add: to, subtract: 0 };
} else {
// Sliding back in
var fromvals = { add: from, subtract: to };
var tovals = { add: from, subtract: from };
}
$(fromvals).animate(tovals, {
duration: 200,
easing: 'swing', // can be anything
step: function () { // called on every step
// Slide using the entire -ms-grid-columns setting
$(id).css(prop, (this.add - this.subtract) + 'px 1.5fr 0.3fr 8fr 3fr 5fr 0.5fr');
}
});
}
Posting my answer to help someone, the top rated answer didn't solve my qualm.
When I implemented the following [from the top answer], my vertical scroll animation just jittered back and forth:
$(function () {
$("#first").animate({
width: '200px'
}, { duration: 200, queue: false });
$("#second").animate({
width: '600px'
}, { duration: 200, queue: false });
});
I referred to: W3 Schools Set Interval and it solved my issue, namely the 'Syntax' section:
setInterval(function, milliseconds, param1, param2, ...)
Having my parameters of the form { duration: 200, queue: false } forced a duration of zero and it only looked at the parameters for guidance.
The long and short, here's my code, if you want to understand why it works, read the link or analyse the interval expected parameters:
var $scrollDiv = '#mytestdiv';
var $scrollSpeed = 1000;
var $interval = 800;
function configureRepeats() {
window.setInterval(function () {
autoScroll($scrollDiv, $scrollSpeed);
}, $interval, { queue: false });
};
Where 'autoScroll' is:
$($scrollDiv).animate({
scrollTop: $($scrollDiv).get(0).scrollHeight
}, { duration: $scrollSpeed });
//Scroll to top immediately
$($scrollDiv).animate({
scrollTop: 0
}, 0);
Happy coding!
Related
I am using a recursive callback with the animate() jquery function.
However the page crashes everytime from the start.
var goingDown = true;
function animateChevron() {
if (goingDown) {
goingDown = !goingDown;
$('#chevron').animate({'opacity': 1}, 500, animateChevron);
}
else {
goingDown = !goingDown;
$('#chevron').animate({'opacity': 0.1}, 500, animateChevron);
}
}
$(document).ready(function(){
animateChevron();
});
Thank you
EDIT: I want it to act in a loop: the chevron appears, then disappears, then appears again etc. As long as the user is on the page.
Try this
$('#chevron').animate({'opacity': 1}, {
duration: 500,
complete: animateChevron
});
Also you can make this better
function animateChevron() {
$('#chevron').animate({'opacity': 1}, {
duration: 500
}).animate({'opacity': 0.1}, {
duration: 500,
complete: animateChevron
});
}
Please try this
$(document).ready(function(){
var speed=500; //in micro seconds
setInterval(function(){
var opacity=$('#chevron').css('opacity')<1 ? 1 : .1;
$('#chevron').animate({'opacity':opacity},speed);
},speed);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="chevron">Chevron</div>
Your code is recursing infinitely.
I changed it to add a parameter goingDown, which when true will cause the animation to hide the chevron, and set the state of a global variable downState to match goingDown. I removed the recursion, you don't need it.
var downState = null;
function animateChevron(goingDown) {
if (!goingDown) {
$('#chevron').animate({
'opacity': 1
}, 500);
} else {
$('#chevron').animate({
'opacity': 0.1
}, 500);
}
downState = goingDown;
}
$(document).ready(function() {
animateChevron(true);
});
#chevron {
font-size: 28px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div id="chevron">
»
</div>
Here is another solution due to the solution I offered first (can still be found at the bottom of this answer) didn't fit the needs of the asker.
According to the following question async callbacks will not cause any stack overflows.
Will recursively calling a function from a callback cause a stack overflow?
(function animateChevron() {
// Chevron visible at this point
$('#chevron').animate({'opacity': 0}, 500, () => {
// Chevron invisible at this point
$('#chevron').animate({'opacity': 1}, 500, animateChevron);
});
})();
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="chevron">Chevron</div>
I found a very neat solution right here at stackoverflow as alternative.
How to make blinking/flashing text with css3?
Code snippet by Mr. Alien:
(function blink() {
$('#chevron').fadeOut(500).fadeIn(500, blink);
})();
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="chevron">Chevron</div>
I want to implement a jQuery animation callback method progress or step,
but in either case I'm getting the following error:
NS_ERROR_IN_PROGRESS: Component returned failure code: 0x804b000f (NS_ERROR_IN_PROGRESS) [nsICacheEntry.dataSize]
I searched a lot but not able to find anything in context, I am kind of stuck here, please suggest what could cause this error?
In fiddle i tried with step and progress and its working there , but not able to get it worked in my code, I am just looking, has some one faced such kind of error in jquery animation?
The sample code is:
this.taskHandle.find('img').stop(true, true).animate({
//todo//
top: vtop, // this.taskHandle.outerHeight(),
//'top': 0 - $('.target.upper').height(),
width: 0,
opacity: 0
}, {
duration: 2000,
step: function(){
console.log('I am called');
}
},
$.proxy(function() {
// some css clearing method
}, {
// some further actions after animation completes
})
);
You have some semantic errors going on here. I'm going to repost your code, formatted for easier reading:
this.taskHandle.find('img')
.stop(true, true)
.animate(
{
//todo//
top: vtop , // this.taskHandle.outerHeight(),
//'top' : 0 - $('.target.upper').height(),
width : 0,
opacity : 0
},
{
duration:2000,
step: function() {
console.log('I am called');
}
},
$.proxy(
function() {
// some css clearing method
},
{
// some further actions after animation completes
}
)
);
First: animate() doesn't accept 3 parameters (at least not those 3 parameters). I'm not sure what you are trying to do with your css clearing method, but anything you wan't to happen after the animation is complete should be in the complete method that you add right next to the step method.
Second: $.proxy() needs to have the context in which you want it to run as the second parameter, not some other"complete"-function.
So here is a slightly modified example which works. You can try it yourself in this fiddle.
var vtop = 100;
$('div')
.stop(true, true)
.animate(
{
top: vtop,
width: 0,
opacity : 0
},
{
duration: 2000,
step: function() {
console.log('I am called');
},
complete: function () {
alert('complete');// some further actions after animation completes
}
}
);
You could use Julian Shapiro's Velocity.js, which animations are (arguable) faster than jQuery and CSS (read this for more)
It allows you to use callbacks such as :
begin
progress
complete
like :
var vtop = 100;
jQuery(document).ready(function ($) {
$('div').find("img").velocity({
top: vtop,
width: 0,
opacity: 0
}, {
duration: 2000,
begin: function (elements) {
console.log('begin');
},
progress: function (elements, percentComplete, timeRemaining, timeStart) {
$("#log").html("<p>Progress: " + (percentComplete * 100) + "% - " + timeRemaining + "ms remaining!</p>");
},
complete: function (elements) {
// some further actions after animation completes
console.log('completed');
$.proxy( ... ); // some css clearing method
}
});
}); // ready
Notice that you just need to replace .animate() by .velocity()
See JSFIDDLE
I'm learning new stuff with jQuery here and I have seen a effect that I like link here
Meet my Team section. As you can see if you scroll down the circle slidesup and fades in at the same time. I tried to replicate that effect. Here's my jsfiddle
$(window).on("scroll", function() {
if ($(window).scrollTop() >= $('#thumbnails-cont').offset().top-$(window).height()) {
$("#thumbnails img").animate({opacity: 1, bottom: 0})
}
});
You have to work with the queue property to play animations simultaneously.
Working fiddle: Here
Basic code:
$(function() {
$(".thumbnail").animate({ opacity: 1 }, { duration: 1200, queue: false });
$(".thumbnail").animate({ "margin-top": "0px" }, { duration: 1200, queue: false });
});
Read this for more information about the animation function in jQuery.
I hope I could help you a bit :)
I'm using the following code to animate a div class arrow;
function animUp() {
$(".arrow").animate({
top: "0"
}, "slow", "swing", animDown);
}
function animDown() {
$(".arrow").animate({
top: "40px"
}, "slow", "swing", animUp);
}
$(document).ready(function() {
animUp();
});
Which works great and animates the arrow as intended. I've then added the class 'arrow' to another div with an arrow in to animate and they both stop animate down, long pause, animate up, long pause, animate down etc. Rather than the smooth animation of one arrow.
I've also tried having arrow and arrow2 and combining them in the script like this;
function animUp() {
$(".arrow, .arrow2").animate({
top: "0"
}, "slow", "swing", animDown);
}
function animDown() {
$(".arrow, .arrow2").animate({
top: "40px"
}, "slow", "swing", animUp);
}
$(document).ready(function() {
animUp();
});
With the same result as above. What else can I try to get them both animating smoothly?
jsFiddle - My html structure is using bootstrap
animations are added to a queue by default in jQuery to avoid queueing you should do the following:
function animUp() {
$(".arrow, .arrow2").animate({
top: "0"
}, {
duration: "slow",
queue: false,
easing: "swing",
complete: animDown
});
}
function animDown() {
$(".arrow, .arrow2").animate({
top: "40px"
}, {
duration: "slow",
queue: false,
easing: "swing",
complete: animDown
});
}
notice how instead of just passing in "slow" we now use an object
the following is from the jQuery site :: http://api.jquery.com/animate/
queue (default: true)
Type: Boolean or String
A Boolean indicating whether to place the animation in the effects queue. If false, the animation will begin immediately. As of jQuery 1.7, the queue option can also accept a string, in which case the animation is added to the queue represented by that string. When a custom queue name is used the animation does not automatically start; you must call .dequeue("queuename") to start it.
I have a timeline definition which lists selectors and a list of delays and animations to apply to that object. You can specify that the steps for a particular object be looped.
Here is the function that's used to queue the animations:
function animateWithQueue(e, obj) {
if ($.queue(e[0]).length == 0) {
e.queue(function doNext(next) {
$.each(obj.steps, function(i, step) {
e.delay(step.pause).animate(step.anim, step.options);
});
if (obj.loop) {
e.queue(doNext);
}
next();
});
}
}
Here is the timeline information
var timeline = {
'.square': {
loop: true,
steps: [
{ pause: 800, anim: { right: '+=200' }, options: { duration: 400} },
{ pause: 1000, anim: { right: '-=200' }, options: { duration: 400} }
]
},
'.circle': {
loop: true,
steps: [
{ pause: 1200, anim: { top: '+=200' }, options: { duration: 400} },
{ pause: 1200, anim: { top: '-=200' }, options: { duration: 400} }
]
}
};
And here is the function that puts the timeline into the above animate function:
$.each(timeline, function(selector, obj) {
animateWithQueue($(selector), obj);
});
Here is a full example. http://jsfiddle.net/sprintstar/Tdads/
This code appears to work fine, the animations loop and the stop button can be clicked to stop the animations, clear the queues etc. However the issue we're facing can be triggered by hitting stop and start over and over (say 10 times). Then notice that the delays are not functioning correctly any more, and the shapes move about much faster.
Why is this, and how can it be fixed?
Something is not working quite right with delay...
As a work around, I've replaced it with doTimeout in this fiddle, so the following:
e.delay(step.pause).animate(step.anim, step.options);
Becomes:
var timerName = e[0].className + $.now();
timeouts.push(timerName);
e.queue(function(next) {
e.doTimeout(timerName, step.pause, function() {
this.animate(step.anim, step.options);
next();
});
});
timeouts is an array of unique timeout ids - each of which is cleared when the stop button is pressed.
As I've said, more of a workaround than a fix, as you'll also need to reset the position of the elements on stop too. (notice I've removed the += and -= from the top/right definitions)
looking at your stop handler i woudl suspect the .stop() to be miss placed.
i would target it on .circle and .square instead of the holding div.
Had an issue once with animate, as the element was moving faster and faster and faster and cam to the conclusion that animate was stacking up on himself.
api.jquery.com/clearQueue/ and http://api.jquery.com/stop/ might be usefull