I am learning how to schedule animations via JavaScript, especially with the help of jQuery. I tried to blink some h1 tags, but the animation doesn't seem to run fluently. It stops for a while and then go on.
The core animation code:
function animSlideHeading() {
$('.slide h1').animate({
opacity: .6
}, 500, 'swing', function() {
$('.slide h1').animate({
opacity: 1
}, 500, 'swing', animSlideHeading);
});
}
See this JSBin.
There are several elements matching the selector $('.slide h1'), so the callback is called multiple times, once for each element that is animated, and animSlideHeading runs more and more times the longer it goes, messing it up.
To solve it, you can use promises that resolve when the animations have completed for all the elements in the collection collectively
function animSlideHeading() {
$('.slide h1').animate({
opacity: 0.6
}, 500, 'swing').promise().done(function () {
$(this).animate({
opacity: 1
}, 500, 'swing').promise().done(animSlideHeading);
});
}
animSlideHeading();
FIDDLE
Related
I need to get a picture crawling smoothly without slowing down at the start and finish.
setInterval(function runIt() {
$(".bffffg").animate({
backgroundPositionX: 300
}, 8000);
$(".bffffg").animate({
backgroundPositionX: 0
}, 0);
}, 1);
.bffffg {
display: block;
position: absolute;
width: 100%;
height: 100%;
background: url(http://www.dejurka.ru/wp-content/uploads/2015/06/watercolor-patterns4.jpg);
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.3/jquery.min.js"></script>
<div class="bffffg"></div>
How to apply a linear effect to the animation?
And even apply different effects to it?
If you are looking for setting easing parameter, you may pass it as a separate argument like here:
$('your-selector').animate({
'your-property': 'value'
}, 8000, 'linear');
...or with options object like here:
$('your-selector').animate({
'your-property': 'value'
}, {
duration: 8000,
easing: 'linear'
});
Here is DOC for jQuery .animate() :)
Currently im trying to set a page so that on click of a button one div .animates up and another .animates down in the place the old div was which has been successful. The problem is they both do this at the same time making the animation a bit messy. What I want to do is have the animation pause for about 2 seconds just after the first div has moved up and then bring down the second div. Here is my code so far:
$(document).ready(function() {
$('.aboutcontainer,.contactcontainer,.homecontainer,.portfoliocontainer,.musiccontainer').hide();
});
$(document).ready(function() {
$(".homecontainer").show();
});
$(document).ready(function() {
$('#about').click(function go() {
$('.homecontainer,.musiccontainer, .portfoliocontainer, .contactcontainer').fadeOut({
queue: false,
duration: 'slow'
});
$('.homecontainer, .musiccontainer, .portfoliocontainer, .contactcontainer').animate({
'margin-Top': "-1000px" //moves left
});
$('.aboutcontainer ').fadeIn({
queue: false,
duration: 'slow'
});
$('.aboutcontainer').animate({
'margin-Top': "115px" //moves left
});
});
});
I have tried inserting a .delay(2000)just before the .fadeIn here:
$('.aboutcontainer ').fadeIn
and another one before the .animate here:
$('.aboutcontainer').animate
.delay does not seem to work at all (im using the lates jQuery version)
The weird thing is I have tried using a setTimeout() function like so:
setTimeout(function() {
$('.aboutcontainer ').fadeIn({
queue: false,
duration: 'slow'
});
$('.aboutcontainer').animate({
'margin-Top': '115px' //moves left
});
}, 2000);
When I do the .fadeIn pauses for the 2 seconds but the .animate does not. Can someone please let me know what im doing wrong here?
At your site .aboutcontainer has margin-top: 115px; at main.css:131.
So animation from margin-top: 115px; to margin-top: 115px; actually does nothing.
You can set, for example, margin-top: -1000px for .aboutcontainer and see the animation in action.
You are missing the time paramater for animation,
Try to add the timing for animation like below.
setTimeout(function() {
$('.aboutcontainer ').fadeIn({
queue: false,
duration: 'slow'
});
$(".aboutcontainer").animate({
marginTop: "115px",
}, 750);//Look at here..
}, 2000 );
here is the jsfiddle, check it http://jsfiddle.net/ganeshgaxy/d6g1empb/
I'm trying to apply a CSS transition to an element, but at some point before it completes, remove the transition entirely and start another one.
This question answers how to stop a transition in its tracks, but I modified the jsFiddle there to illustrate the issue:
http://jsfiddle.net/zXVLd/
var $div = $('div');
$div.click(function(){
$div.css({
left: 0,
transition: 'none'
});
$div.transit({
top: 600,
},5000);
});
function complete(){
$div.css('backgroundColor', 'blue');
}
$div.transit({left: 600}, 5000, 'linear', complete);
What I want to happen is for the box to reset its position and move down when clicked, and for the completed handler on the first transition to not fire.
What does happen is the box resets its position when clicked, but doesn't move down until the first transition completes (even though the motion from the first transition is no longer happening). The completed handler still fires on the first transition as well.
I've updated your fiddle with the clearQueue method: http://jsfiddle.net/zXVLd/1/
var $div = $('div');
$div.click(function(){
$div.clearQueue().css('left', $div.css('left')).transit({
top: 600,
},5000);
});
function complete(){
$div.css('backgroundColor', 'blue');
}
$div.transit({left: 600}, 5000, 'linear', complete);
That does the trick. See http://api.jquery.com/clearQueue/ for more information on the clearQueue method.
To do this kind of animations, you can try to use GSAP's TweenLite. It's incredible what you can achieve with it. http://www.greensock.com/jump-start-js/ If you include this on your page and add the following code:
div.bind('click', function(e) {
// note that you can animate two directions, from and to
TweenLite.from(div /*element*/, 0.2 /*easing in seconds*/, {
// the css, but for positioning elements you can also use x and y.
x: 600,
easing: linear,
onStart: function() {
Stuff you want to do before the animation
},
onComplete: function() {
Stuff you want to do after animationg
}
});
});
The plugin which you use is using queue. So, it is just enough to call $div.dequeue(); I.e.
var $div = $('div');
$div.click(function(){
$div.dequeue();
$div.css({
left: 0,
top: 0,
transition: 'none'
});
$div.transit({
top: 600,
},5000);
});
function complete(){
$div.css('backgroundColor', 'blue');
}
$div.transit({left: 600}, 5000, 'linear', complete);
fiddle -> http://jsfiddle.net/krasimir/zXVLd/2/
I want to have a div that animates the currently active image out of the view and instead animates in another image. There are several of these divs, and each one should have the same basic functionality but linked to different images. The problem I'm having is that you can click many of the divs before the animation is complete, which fires the other animations at the same time. My goal is to only be able to fire one animation at a time, and when the animation finishes you're able to fire the next animation. I've tried using unbind which works OK but then I'd have to rebind it later and I don't know how to do this. I'm really a jQuery noob so I would greatly apreciate an answer. Thanks!
My code:
$('.div1').click(function clickevent() {
$('.img2, .img3').animate({
opacity: 0.1,
left: 600
}, 1000, function() {
$('.img1').animate({
opacity: 1,
left: 0
}, 500, function() {
$('.div2, .div3').bind('click', clickevent); /* Here I want to rebind the function */
});
});
$(this).addClass("active");
$('.div2, div3').removeClass("active");
$('div2, .div3').unbind('click', clickevent);
});
I have two other codeblocks for .div2 and .div3 which look the same but with different classes in different places. Is there any way to make the images finish their animation before being able to animate again? Thanks.
Is this what you need:
var canAnimate = true;
$('.div1').click(function clickevent() {
// these 4 lines have to be in all code blocks (ie. for .div2 and .div3)
if (! canAnimate) {
return;
}
canAnimate = false;
$('.img2, .img3').animate({
opacity: 0.1,
left: 600
}, 1000, function() {
$('.img1').animate({
opacity: 1,
left: 0
}, 500, function() {
canAnimate = true; // this should also be included for .div2 and .div3 code blocks
});
});
$(this).addClass("active");
$('.div2, div3').removeClass("active");
});
I think queue() will append the animations but not stop them, so if you click 10 times on the images, the click handler will animate it 10 times but one after another. I guess you want only animate the images when no image is currenty animated so you can use:
$('.div1').click(function clickevent() {
// When no image is currently animated then perform the animation
if($j('.img1, .img2, .img3').is(':animated') == false)
{
$('.img2, .img3').animate({
opacity: 0.1,
left: 600
}, 1000, function() {
$('.img1').animate({
opacity: 1,
left: 0
}, 500);
});
$(this).addClass("active");
$('.div2, div3').removeClass("active");
} else {
// There is currently an animation runnig, do nothing
}
});
See this for more information: http://api.jquery.com/animated-selector/
You should also get some information about caching of selection results.
i have a coke like below that using jquery prototype Library:
new Effect.SlideDown(this.imageDataContainer, { sync: true, duration: this.resizeDuration, from: 0.0, to: 1.0 }),
new Effect.Appear(this.imageDataContainer, { sync: true, duration: this.resizeDuration })
this code force the imageDataContainer element to sliding Down From 0 Opacity To 1 Opacity.
how can i implement upper codes with new downloaded jquery library from jquery.com web site?
the syntax of slideDown is like this :
http://www.w3schools.com/jquery/eff_slidedown.asp
i know how slideDown And fadeTo Functions Work in jquery / but how can i combine them like the upper codes?
i test the below code - but u can not changing the opacity --DURING-- toggle :
$('#lightbox-container-image-data-box').animate({
opacity: 0,
height: 'toggle',
opacity: 1
}, 400, function() {
// Animation complete.
});
thanks 4 attention
Use animate() for that. With animate you can animate any arbitrary number of properties on an element.
Check a demo of the code below here: http://jsfiddle.net/chrisramakers/8ewEp/
$('#book').hide();
$('#book').animate({
opacity: 'toggle',
height: 'toggle'
});