fadeOut() and slideUp() at the same time?

问题

I have found jQuery: FadeOut then SlideUp and it's good, but it's not the one.

How can I fadeOut() and slideUp() at the same time? I tried two separate setTimeout() calls with the same delay but the slideUp() happened as soon as the page loaded.

Has anyone done this?

回答1:

You can do something like this, this is a full toggle version:

$("#mySelector").animate({ height: 'toggle', opacity: 'toggle' }, 'slow');

For strictly a fadeout:

$("#mySelector").animate({ height: 0, opacity: 0 }, 'slow');

回答2:

Directly animating height results in a jerky motion on some web pages. However, combining a CSS transition with jQuery's slideUp() makes for a smooth disappearing act.

const slideFade = (elem) => {
   const fade = { opacity: 0, transition: 'opacity 0.5s' };
   elem.css(fade).slideUp();
   }

slideFade($('#mySelector'));

Fiddle with the code:
https://jsfiddle.net/00Lodcqf/435

In some situations, a very quick 100 millisecond pause to allow more fading creates a slightly smoother experience:

   elem.css(fade).delay(100).slideUp();

This is the solution I used in the dna.js project where you can view the code (github.com/dnajs/dna.js) for the dna.ui.slideFade() function to see additional support for toggling and callbacks.

回答3:

The accepted answer by "Nick Craver" is definitely the way to go. The only thing I'd add is that his answer doesn't actually "hide" it, meaning the DOM still sees it as a viable element to display.

This can be a problem if you have margin's or padding's on the 'slid' element... they will still show. So I just added a callback to the animate() function to actually hide it after animation is complete:

$("#mySelector").animate({ 
   height: 0, 
   opacity: 0,
   margin: 0,
   padding: 0
}, 'slow', function(){
   $(this).hide();
});

回答4:

It's possible to do this with the slideUp and fadeOut methods themselves like so:

$('#mydiv').slideUp(300, function(){
    console.log('Done!');
}).fadeOut({
    duration: 300,
    queue: false
});

回答5:

I had a similar problem and fixed it like this.

$('#mydiv').animate({
            height: 0,
        }, {
            duration: 1000,
            complete: function(){$('#mydiv').css('display', 'none');}
        });
$('#mydiv').animate({
            opacity: 0,
        }, {
            duration: 1000,
            queue: false
        });

the queue property tells it whether to queue the animation or just play it right away

回答6:

Throwing one more refinement in there based on @CodeKoalas. It accounts for vertical margin and padding but not horizontal.

$('.selector').animate({
    opacity: 0,
    height: 0,
    marginTop: 0,
    marginBottom: 0,
    paddingTop: 0,
    paddingBottom: 0
}, 'slow', function() {
    $(this).hide();
});

来源：https://stackoverflow.com/questions/2387515/fadeout-and-slideup-at-the-same-time

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