Bootstrap 4 JS Karuzela


Klasy CSS karuzeli

Samouczek dotyczący karuzeli znajdziesz w naszym samouczku dotyczącym karuzeli Bootstrap .

Class Description
.carousel Creates a carousel
.carousel-indicators Adds indicators for the carousel. These are the little dots at the bottom of each slide (which indicates how many slides there are in the carousel, and which slide the user are currently viewing)
.carousel-inner Adds slides to the carousel
.carousel-item Specifies the content of each slide
.carousel-control-prev Adds a left (previous) button to the carousel, which allows the user to go back between the slides
.carousel-control-next Adds a right (next) button to the carousel, which allows the user to go forward between the slides
.carousel-control-prev-icon Used together with .carousel-control-prev to create a "previous" button
.carousel-control-next-icon Used together with .carousel-control-next to create a "next" button
.carousel-caption Specifies a caption for the carousel
.slide Adds a CSS transition and animation effect when sliding from one item to the next. Remove this class if you do not want this effect

Przez dane-* Atrybuty

data-ride="carousel"Atrybut aktywuje karuzelę .

Atrybuty data-slidei data-slide-tookreślają, do którego slajdu należy przejść.

data-slideAtrybut przyjmuje dwie wartości: prev lub next , natomiast data-slide-toakceptuje liczby.

Przykład

<!-- Carousel -->
<div id="myCarousel" class="carousel slide" data-ride="carousel">

<!-- Carousel Indicators -->
<li data-target="#myCarousel" data-slide-to="1"></li>

<!-- Carousel Controls -->
<a class="carousel-control-prev" href="#myCarousel" data-slide="prev">
  <span class="carousel-control-prev-icon"></span>
</a>

Przez JavaScript

Włącz ręcznie za pomocą:

Przykład

// Activate Carousel
$("#myCarousel").carousel();

// Enable Carousel Indicators
$(".item").click(function(){
  $("#myCarousel").carousel(1);
});

// Enable Carousel Controls
$(".carousel-control-prev").click(function(){
  $("#myCarousel").carousel("prev");
});

Opcje karuzeli

Opcje można przekazywać za pomocą atrybutów danych lub JavaScript. W przypadku atrybutów danych dołącz nazwę opcji do data-, jak w data-interval="".

Name Type Default Description Try it
interval number, or the boolean false 5000 Specifies the delay (in milliseconds) between each slide.

Note: Set interval to false to stop the items from automatically sliding
keyboard boolean true Specifies whether the carousel should react to keyboard events:

  • true - the carousel can be navigated (next and previous) with the keyboard left and right arrows
  • false - the carousel can NOT be navigated with the keyboard left and right arrows
pause string, or the boolean false "hover" Pauses the carousel from going through the next slide when the mouse pointer enters the carousel, and resumes the sliding when the mouse pointer leaves the carousel

Note: Set pause to false to stop the ability to pause on hover
wrap boolean true Specifies whether the carousel should go through all slides continuously, or stop at the last slide

  • true - cycle continuously
  • false - stop at the last item

Metody karuzeli

W poniższej tabeli wymieniono wszystkie dostępne metody karuzeli.

Method Description Try it
.carousel(options) Activates the carousel with an option. See options above for valid values
.carousel("cycle") Goes through the carousel items from left to right
.carousel("pause") Stops the carousel from going through items
.carousel(number) Goes to a specified item (zero-based: first item is 0, second item is 1, etc..)
.carousel("prev") Goes to the previous item
.carousel("next") Goes to the next item
.carousel("dispose") Destroys a carousel

Wydarzenia karuzeli

W poniższej tabeli wymieniono wszystkie dostępne wydarzenia karuzeli.

Event Description Try it
slide.bs.carousel Occurs when the carousel is about to slide from one item to another
slid.bs.carousel Occurs when the carousel has finished sliding from one item to another

Zdarzenia slajdu i slajdu mają również dodatkowe właściwości:

Property Description Try it
direction Returns the direction the carousel is sliding (left or right)
relatedTarget Returns the DOM element that is being slid into place as the active item
from Returns the index of where the previous item came from, when moving on to the next one
to Returns the index of the next item