Source

Skåler

Send varsler til de besøkende med en skål, en lett og lett tilpassbar varselmelding.

Toasts er lette varsler designet for å etterligne push-varslene som har blitt populært av mobile og stasjonære operativsystemer. De er bygget med flexbox, så de er enkle å justere og plassere.

Oversikt

Ting å vite når du bruker toast-plugin:

  • Hvis du bygger JavaScript fra kilden, kreverutil.js det .
  • Toasts er opt-in av ytelsesgrunner, så du må initialisere dem selv .
  • Vær oppmerksom på at du er ansvarlig for å plassere toasts.
  • Toasts vil automatisk skjule hvis du ikke spesifiserer autohide: false.

Animasjonseffekten til denne komponenten er avhengig av prefers-reduced-motionmediesøket. Se delen for redusert bevegelse i tilgjengelighetsdokumentasjonen vår .

Eksempler

Grunnleggende

For å oppmuntre til utvidbare og forutsigbare skåler, anbefaler vi en header og body. Toast-overskrifter bruker display: flex, som tillater enkel justering av innhold takket være margin- og flexbox-verktøyene våre.

Toasts er så fleksible som du trenger og har svært lite påkrevd markering. Som et minimum krever vi at et enkelt element inneholder det "ristede" innholdet ditt, og vi oppfordrer på det sterkeste til en avvisningsknapp.

<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
  <div class="toast-header">
    <img src="..." class="rounded mr-2" alt="...">
    <strong class="mr-auto">Bootstrap</strong>
    <small>11 mins ago</small>
    <button type="button" class="ml-2 mb-1 close" data-dismiss="toast" aria-label="Close">
      <span aria-hidden="true">&times;</span>
    </button>
  </div>
  <div class="toast-body">
    Hello, world! This is a toast message.
  </div>
</div>

Gjennomsiktig

Toasts er også litt gjennomskinnelige, så de blander seg over det de kan virke over. For nettlesere som støtter backdrop-filterCSS-egenskapen, vil vi også forsøke å uskarpe elementene under en skål.

<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
  <div class="toast-header">
    <img src="..." class="rounded mr-2" alt="...">
    <strong class="mr-auto">Bootstrap</strong>
    <small class="text-muted">11 mins ago</small>
    <button type="button" class="ml-2 mb-1 close" data-dismiss="toast" aria-label="Close">
      <span aria-hidden="true">&times;</span>
    </button>
  </div>
  <div class="toast-body">
    Hello, world! This is a toast message.
  </div>
</div>

Stabling

Når du har flere toasts, vil vi som standard stable dem vertikalt på en lesbar måte.

<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
  <div class="toast-header">
    <img src="..." class="rounded mr-2" alt="...">
    <strong class="mr-auto">Bootstrap</strong>
    <small class="text-muted">just now</small>
    <button type="button" class="ml-2 mb-1 close" data-dismiss="toast" aria-label="Close">
      <span aria-hidden="true">&times;</span>
    </button>
  </div>
  <div class="toast-body">
    See? Just like this.
  </div>
</div>

<div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
  <div class="toast-header">
    <img src="..." class="rounded mr-2" alt="...">
    <strong class="mr-auto">Bootstrap</strong>
    <small class="text-muted">2 seconds ago</small>
    <button type="button" class="ml-2 mb-1 close" data-dismiss="toast" aria-label="Close">
      <span aria-hidden="true">&times;</span>
    </button>
  </div>
  <div class="toast-body">
    Heads up, toasts will stack automatically
  </div>
</div>

Plassering

Plasser toasts med tilpasset CSS etter hvert som du trenger dem. Øverst til høyre brukes ofte til varsler, og det samme er øverste midten. Hvis du bare noen gang skal vise én skål om gangen, plasser posisjoneringsstilene rett på .toast.

Støvelhempe 11 minutter siden
Hei Verden! Dette er en skålmelding. 
<div aria-live="polite" aria-atomic="true" style="position: relative; min-height: 200px;">
  <div class="toast" style="position: absolute; top: 0; right: 0;">
    <div class="toast-header">
      <img src="..." class="rounded mr-2" alt="...">
      <strong class="mr-auto">Bootstrap</strong>
      <small>11 mins ago</small>
      <button type="button" class="ml-2 mb-1 close" data-dismiss="toast" aria-label="Close">
        <span aria-hidden="true">&times;</span>
      </button>
    </div>
    <div class="toast-body">
      Hello, world! This is a toast message.
    </div>
  </div>
</div>

For systemer som genererer flere varsler, bør du vurdere å bruke et innpakningselement slik at de enkelt kan stables.

<div aria-live="polite" aria-atomic="true" style="position: relative; min-height: 200px;">
  <!-- Position it -->
  <div style="position: absolute; top: 0; right: 0;">

    <!-- Then put toasts within -->
    <div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
      <div class="toast-header">
        <img src="..." class="rounded mr-2" alt="...">
        <strong class="mr-auto">Bootstrap</strong>
        <small class="text-muted">just now</small>
        <button type="button" class="ml-2 mb-1 close" data-dismiss="toast" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
      </div>
      <div class="toast-body">
        See? Just like this.
      </div>
    </div>

    <div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
      <div class="toast-header">
        <img src="..." class="rounded mr-2" alt="...">
        <strong class="mr-auto">Bootstrap</strong>
        <small class="text-muted">2 seconds ago</small>
        <button type="button" class="ml-2 mb-1 close" data-dismiss="toast" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
      </div>
      <div class="toast-body">
        Heads up, toasts will stack automatically
      </div>
    </div>
  </div>
</div>

Du kan også bli fancy med flexbox-verktøy for å justere toasts horisontalt og/eller vertikalt.

<!-- Flexbox container for aligning the toasts -->
<div aria-live="polite" aria-atomic="true" class="d-flex justify-content-center align-items-center" style="min-height: 200px;">

  <!-- Then put toasts within -->
  <div class="toast" role="alert" aria-live="assertive" aria-atomic="true">
    <div class="toast-header">
      <img src="..." class="rounded mr-2" alt="...">
      <strong class="mr-auto">Bootstrap</strong>
      <small>11 mins ago</small>
      <button type="button" class="ml-2 mb-1 close" data-dismiss="toast" aria-label="Close">
        <span aria-hidden="true">&times;</span>
      </button>
    </div>
    <div class="toast-body">
      Hello, world! This is a toast message.
    </div>
  </div>
</div>

tilgjengelighet

Toasts are intended to be small interruptions to your visitors or users, so to help those with screen readers and similar assistive technologies, you should wrap your toasts in an aria-live region. Changes to live regions (such as injecting/updating a toast component) are automatically announced by screen readers without needing to move the user’s focus or otherwise interrupt the user. Additionally, include aria-atomic="true" to ensure that the entire toast is always announced as a single (atomic) unit, rather than announcing what was changed (which could lead to problems if you only update part of the toast’s content, or if displaying the same toast content at a later point in time). If the information needed is important for the process, e.g. for a list of errors in a form, then use the alert component instead of toast.

Note that the live region needs to be present in the markup before the toast is generated or updated. If you dynamically generate both at the same time and inject them into the page, they will generally not be announced by assistive technologies.

You also need to adapt the role and aria-live level depending on the content. If it’s an important message like an error, use role="alert" aria-live="assertive", otherwise use role="status" aria-live="polite" attributes.

As the content you’re displaying changes, be sure to update the delay timeout to ensure people have enough time to read the toast.

<div class="toast" role="alert" aria-live="polite" aria-atomic="true" data-delay="10000">
  <div role="alert" aria-live="assertive" aria-atomic="true">...</div>
</div>

When using autohide: false, you must add a close button to allow users to dismiss the toast.

<div role="alert" aria-live="assertive" aria-atomic="true" class="toast" data-autohide="false">
  <div class="toast-header">
    <img src="..." class="rounded mr-2" alt="...">
    <strong class="mr-auto">Bootstrap</strong>
    <small>11 mins ago</small>
    <button type="button" class="ml-2 mb-1 close" data-dismiss="toast" aria-label="Close">
      <span aria-hidden="true">&times;</span>
    </button>
  </div>
  <div class="toast-body">
    Hello, world! This is a toast message.
  </div>
</div>

JavaScript behavior

Usage

Initialize toasts via JavaScript:

$('.toast').toast(option)

Options

Options can be passed via data attributes or JavaScript. For data attributes, append the option name to data-, as in data-animation="".

Name Type Default Description
animation boolean true Apply a CSS fade transition to the toast
autohide boolean true Auto hide the toast
delay number 500 Delay hiding the toast (ms)

Methods

Asynchronous methods and transitions

All API methods are asynchronous and start a transition. They return to the caller as soon as the transition is started but before it ends. In addition, a method call on a transitioning component will be ignored.

See our JavaScript documentation for more information.

$().toast(options)

Attaches a toast handler to an element collection.

.toast('show')

Reveals an element’s toast. Returns to the caller before the toast has actually been shown (i.e. before the shown.bs.toast event occurs). You have to manually call this method, instead your toast won’t show.

$('#element').toast('show')

.toast('hide')

Hides an element’s toast. Returns to the caller before the toast has actually been hidden (i.e. before the hidden.bs.toast event occurs). You have to manually call this method if you made autohide to false.

$('#element').toast('hide')

.toast('dispose')

Hides an element’s toast. Your toast will remain on the DOM but won’t show anymore.

$('#element').toast('dispose')

Events

Event Type Description
show.bs.toast This event fires immediately when the show instance method is called.
shown.bs.toast This event is fired when the toast has been made visible to the user.
hide.bs.toast Denne hendelsen utløses umiddelbart når hideinstansmetoden er kalt.
skjult.bs.toast Denne hendelsen utløses når toasten er ferdig skjult for brukeren. 
$('#myToast').on('hidden.bs.toast', function () {
  // do something...
})