Fa'ase'e ile anotusi autu Fa'ase'e ile su'ega fa'amatalaga
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Fa'aliga

Tuuina atu fe'au fa'amatalaga fa'atatau mo fa'atinoga masani a tagata fa'aoga fa'atasi ai ma le lima o fe'au mataala avanoa ma fetu'una'i.

I luga o lenei itulau

Faataitaiga

E avanoa fa'aaliga mo so'o se umi o tusitusiga, fa'apea fo'i ma se fa'amau tapuni e filifili ai. Mo le fa'avasega lelei, fa'aaoga se tasi o vasega fa'atatau e valu e mana'omia (fa'ata'ita'iga, .alert-success). Mo le fa'ate'aina i totonu o le laina, fa'aoga le fa'amaufa'ailoga JavaScript .

html 
<div class="alert alert-primary" role="alert">
  A simple primary alert—check it out!
</div>
<div class="alert alert-secondary" role="alert">
  A simple secondary alert—check it out!
</div>
<div class="alert alert-success" role="alert">
  A simple success alert—check it out!
</div>
<div class="alert alert-danger" role="alert">
  A simple danger alert—check it out!
</div>
<div class="alert alert-warning" role="alert">
  A simple warning alert—check it out!
</div>
<div class="alert alert-info" role="alert">
  A simple info alert—check it out!
</div>
<div class="alert alert-light" role="alert">
  A simple light alert—check it out!
</div>
<div class="alert alert-dark" role="alert">
  A simple dark alert—check it out!
</div>
Tu'uina atu le uiga i tekinolosi fesoasoani

O le fa'aogaina o le lanu e fa'aopoopo ai le uiga e na'o se fa'aaliga va'aia, e le fa'ailoa atu i tagata fa'aoga o tekonolosi fesoasoani - e pei o le au faitau mata. Ia fa'amautinoa o fa'amatalaga o lo'o fa'ailogaina i le lanu e manino mai le anotusi lava ia (fa'ata'ita'iga o tusitusiga va'aia), pe fa'aofi mai i isi auala, e pei o tusitusiga fa'aopoopo natia i le .visually-hiddenvasega.

Fa'ata'ita'iga ola

Kiliki le fa'amau i lalo e fa'aalia ai se mataala (natia i sitaili i totonu e amata ai), ona fa'ate'a lea (ma fa'aumatia) fa'atasi ai ma le fa'amau fa'amau.

html 
<div id="liveAlertPlaceholder"></div>
<button type="button" class="btn btn-primary" id="liveAlertBtn">Show live alert</button>

Matou te faʻaogaina le JavaScript o loʻo mulimuli mai e faʻaoso ai la matou faʻaaliga mataala ola:

const alertPlaceholder = document.getElementById('liveAlertPlaceholder')

const alert = (message, type) => {
  const wrapper = document.createElement('div')
  wrapper.innerHTML = [
    `<div class="alert alert-${type} alert-dismissible" role="alert">`,
    `   <div>${message}</div>`,
    '   <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>',
    '</div>'
  ].join('')

  alertPlaceholder.append(wrapper)
}

const alertTrigger = document.getElementById('liveAlertBtn')
if (alertTrigger) {
  alertTrigger.addEventListener('click', () => {
    alert('Nice, you triggered this alert message!', 'success')
  })
}

Fa'aoga le .alert-linkvasega aoga e vave tu'uina atu ai so'otaga lanu tutusa i totonu o so'o se mataala.

html 
<div class="alert alert-primary" role="alert">
  A simple primary alert with <a href="#" class="alert-link">an example link</a>. Give it a click if you like.
</div>
<div class="alert alert-secondary" role="alert">
  A simple secondary alert with <a href="#" class="alert-link">an example link</a>. Give it a click if you like.
</div>
<div class="alert alert-success" role="alert">
  A simple success alert with <a href="#" class="alert-link">an example link</a>. Give it a click if you like.
</div>
<div class="alert alert-danger" role="alert">
  A simple danger alert with <a href="#" class="alert-link">an example link</a>. Give it a click if you like.
</div>
<div class="alert alert-warning" role="alert">
  A simple warning alert with <a href="#" class="alert-link">an example link</a>. Give it a click if you like.
</div>
<div class="alert alert-info" role="alert">
  A simple info alert with <a href="#" class="alert-link">an example link</a>. Give it a click if you like.
</div>
<div class="alert alert-light" role="alert">
  A simple light alert with <a href="#" class="alert-link">an example link</a>. Give it a click if you like.
</div>
<div class="alert alert-dark" role="alert">
  A simple dark alert with <a href="#" class="alert-link">an example link</a>. Give it a click if you like.
</div>

Fa'aopoopo anotusi

E mafai fo'i ona iai fa'amatalaga HTML fa'aopoopo e pei o ulutala, parakalafa ma vaeluaga.

html 
<div class="alert alert-success" role="alert">
  <h4 class="alert-heading">Well done!</h4>
  <p>Aww yeah, you successfully read this important alert message. This example text is going to run a bit longer so that you can see how spacing within an alert works with this kind of content.</p>
  <hr>
  <p class="mb-0">Whenever you need to, be sure to use margin utilities to keep things nice and tidy.</p>
</div>

Fa'ailoga

E fa'apena fo'i, e mafai ona e fa'aogaina flexbox utilities ma Bootstrap Icons e fai ai fa'ailo ma fa'ailoga. Fa'alagolago i au ata ma anotusi, atonu e te mana'o e fa'aopoopo nisi mea aoga po'o sitaili masani.

html 
<div class="alert alert-primary d-flex align-items-center" role="alert">
  <svg xmlns="http://www.w3.org/2000/svg" class="bi bi-exclamation-triangle-fill flex-shrink-0 me-2" viewBox="0 0 16 16" role="img" aria-label="Warning:">
    <path d="M8.982 1.566a1.13 1.13 0 0 0-1.96 0L.165 13.233c-.457.778.091 1.767.98 1.767h13.713c.889 0 1.438-.99.98-1.767L8.982 1.566zM8 5c.535 0 .954.462.9.995l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 5.995A.905.905 0 0 1 8 5zm.002 6a1 1 0 1 1 0 2 1 1 0 0 1 0-2z"/>
  </svg>
  <div>
    An example alert with an icon
  </div>
</div>

Mana'omia ni fa'ailoga e sili atu ma le tasi mo au fa'aaliga? Mafaufau e faʻaaoga nisi Bootstrap Icons ma fai se sprite SVG faʻapitonuʻu faʻapea e faigofie ai ona faʻasino i taimi uma ia lava ata.

html 
<svg xmlns="http://www.w3.org/2000/svg" style="display: none;">
  <symbol id="check-circle-fill" viewBox="0 0 16 16">
    <path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zm-3.97-3.03a.75.75 0 0 0-1.08.022L7.477 9.417 5.384 7.323a.75.75 0 0 0-1.06 1.06L6.97 11.03a.75.75 0 0 0 1.079-.02l3.992-4.99a.75.75 0 0 0-.01-1.05z"/>
  </symbol>
  <symbol id="info-fill" viewBox="0 0 16 16">
    <path d="M8 16A8 8 0 1 0 8 0a8 8 0 0 0 0 16zm.93-9.412-1 4.705c-.07.34.029.533.304.533.194 0 .487-.07.686-.246l-.088.416c-.287.346-.92.598-1.465.598-.703 0-1.002-.422-.808-1.319l.738-3.468c.064-.293.006-.399-.287-.47l-.451-.081.082-.381 2.29-.287zM8 5.5a1 1 0 1 1 0-2 1 1 0 0 1 0 2z"/>
  </symbol>
  <symbol id="exclamation-triangle-fill" viewBox="0 0 16 16">
    <path d="M8.982 1.566a1.13 1.13 0 0 0-1.96 0L.165 13.233c-.457.778.091 1.767.98 1.767h13.713c.889 0 1.438-.99.98-1.767L8.982 1.566zM8 5c.535 0 .954.462.9.995l-.35 3.507a.552.552 0 0 1-1.1 0L7.1 5.995A.905.905 0 0 1 8 5zm.002 6a1 1 0 1 1 0 2 1 1 0 0 1 0-2z"/>
  </symbol>
</svg>

<div class="alert alert-primary d-flex align-items-center" role="alert">
  <svg class="bi flex-shrink-0 me-2" role="img" aria-label="Info:"><use xlink:href="#info-fill"/></svg>
  <div>
    An example alert with an icon
  </div>
</div>
<div class="alert alert-success d-flex align-items-center" role="alert">
  <svg class="bi flex-shrink-0 me-2" role="img" aria-label="Success:"><use xlink:href="#check-circle-fill"/></svg>
  <div>
    An example success alert with an icon
  </div>
</div>
<div class="alert alert-warning d-flex align-items-center" role="alert">
  <svg class="bi flex-shrink-0 me-2" role="img" aria-label="Warning:"><use xlink:href="#exclamation-triangle-fill"/></svg>
  <div>
    An example warning alert with an icon
  </div>
</div>
<div class="alert alert-danger d-flex align-items-center" role="alert">
  <svg class="bi flex-shrink-0 me-2" role="img" aria-label="Danger:"><use xlink:href="#exclamation-triangle-fill"/></svg>
  <div>
    An example danger alert with an icon
  </div>
</div>

Fa'ate'aina

I le fa'aogaina o le fa'apipi'i JavaScript alert, e mafai ona fa'ate'aina so'o se mataala i totonu. O le auala lenei:

  • Ia mautinoa ua e utaina le masini mataala, poʻo le Bootstrap JavaScript ua tuufaatasia.
  • Fa'aopoopo se fa'amau tapuni ma le .alert-dismissiblevasega, lea e fa'aopoopoina ai le fa'aofuofu fa'aopoopo i le itu taumatau o le mataala ma tu'u ai le ki tapuni.
  • I luga o le fa'amau tapuni, fa'aopoopo le data-bs-dismiss="alert"uiga, lea e fa'aoso ai le fa'atinoga o le JavaScript. Ia mautinoa e faʻaaoga le <button>elemene mo le amio talafeagai i masini uma.
  • Ina ia fa'aola fa'aaliga pe a fa'ate'aina, ia mautinoa e fa'aopoopo le .fadema .showvasega.

E mafai ona e vaʻaia lenei mea i le gaioiga ma se faʻaaliga ola:

html 
<div class="alert alert-warning alert-dismissible fade show" role="alert">
  <strong>Holy guacamole!</strong> You should check in on some of those fields below.
  <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
</div>
Pe a faʻateʻaina se mataala, o le elemene e aveese atoa mai le fausaga o itulau. Afai e faʻateʻaina e le tagata faʻaoga keyboard le mataala e faʻaaoga ai le ki tapuni, o le a faʻafuaseʻi ona leiloa le latou taulaiga ma, e faalagolago i le browser, toe setiina i le amataga o le itulau / pepa. Mo lenei mafua'aga, matou te fautuaina le fa'aopoopoina o le Javascript e fa'alogo mo le closed.bs.alertmea na tupu ma fa'apolokalame fa'atulaga focus()i le nofoaga e sili ona talafeagai i le itulau. Afai o loʻo e fuafua e faʻanofo le taulaiga i se elemene e le fesoʻotaʻi e masani ona le maua le taulaiga, ia mautinoa e faʻaopoopo tabindex="-1"i le elemene.

CSS

Fuafuaga

Fa'aopoopo i le v5.2.0

I le avea ai o se vaega o le faʻaogaina o suiga CSS a Bootstrap, ua faʻaogaina nei e faʻasalalauga faʻaoga CSS faʻapitonuʻu i luga .alertmo le faʻaleleia atili o taimi masani. O tau mo le CSS fesuiaiga e faʻatulagaina e ala i le Sass, o lea o loʻo lagolagoina pea le Sass customization.

  --#{$prefix}alert-bg: transparent;
  --#{$prefix}alert-padding-x: #{$alert-padding-x};
  --#{$prefix}alert-padding-y: #{$alert-padding-y};
  --#{$prefix}alert-margin-bottom: #{$alert-margin-bottom};
  --#{$prefix}alert-color: inherit;
  --#{$prefix}alert-border-color: transparent;
  --#{$prefix}alert-border: #{$alert-border-width} solid var(--#{$prefix}alert-border-color);
  --#{$prefix}alert-border-radius: #{$alert-border-radius};

Sass fesuiaiga

$alert-padding-y:               $spacer;
$alert-padding-x:               $spacer;
$alert-margin-bottom:           1rem;
$alert-border-radius:           $border-radius;
$alert-link-font-weight:        $font-weight-bold;
$alert-border-width:            $border-width;
$alert-bg-scale:                -80%;
$alert-border-scale:            -70%;
$alert-color-scale:             40%;
$alert-dismissible-padding-r:   $alert-padding-x * 3; // 3x covers width of x plus default padding on either side

Sass mixin

Fa'aoga fa'atasi ma $theme-colorsle fa'atupuina o vasega fa'aliliu fa'amatalaga mo a tatou fa'aaliga.

@mixin alert-variant($background, $border, $color) {
  --#{$prefix}alert-color: #{$color};
  --#{$prefix}alert-bg: #{$background};
  --#{$prefix}alert-border-color: #{$border};

  @if $enable-gradients {
    background-image: var(--#{$prefix}gradient);
  }

  .alert-link {
    color: shade-color($color, 20%);
  }
}

Sass loop

Loop e fa'atupuina ai vasega fa'aliliu fa'atasi ma le alert-variant()mixin.

// Generate contextual modifier classes for colorizing the alert.

@each $state, $value in $theme-colors {
  $alert-background: shift-color($value, $alert-bg-scale);
  $alert-border: shift-color($value, $alert-border-scale);
  $alert-color: shift-color($value, $alert-color-scale);

  @if (contrast-ratio($alert-background, $alert-color) < $min-contrast-ratio) {
    $alert-color: mix($value, color-contrast($alert-background), abs($alert-color-scale));
  }
  .alert-#{$state} {
    @include alert-variant($alert-background, $alert-border, $alert-color);
  }
}

Amioga JavaScript

Fa'amuamua

Amata elemene e fai ma fa'aaliga

const alertList = document.querySelectorAll('.alert')
const alerts = [...alertList].map(element => new bootstrap.Alert(element))

Mo le faʻamoemoe e tasi o le faʻateʻaina o se mataala, e le manaʻomia le amataina o le vaega ile lima ile JS API. I le fa'aogaina o le data-bs-dismiss="alert", o le vaega o le a otometi lava ona amatalia ma fa'ate'a lelei.

Va'ai le vaega fa'aoso mo nisi fa'amatalaga.

Fa'aoso

E mafai ona ausia le faʻateʻaina i le datauiga i luga o se ki i totonu o le mataala e pei ona faʻaalia i lalo:

<button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>

pe i luga o se faamau i fafo o le mataala e faʻaaoga ai le data-bs-targetfaʻataʻitaʻiga i lalo:

<button type="button" class="btn-close" data-bs-dismiss="alert" data-bs-target="#my-alert" aria-label="Close"></button>

Manatua o le tapunia o se mataala o le a aveesea mai le DOM.

Metotia

E mafai ona e fatuina se faʻataʻitaʻiga faʻataʻitaʻiga ma le faʻailoga mataala, mo se faʻataʻitaʻiga:

const bsAlert = new bootstrap.Alert('#myAlert')

O le mea lea e fa'alogo ai fa'alogo mo kiliki mea e tutupu i elemene tupuaga o lo'o iai le data-bs-dismiss="alert"uiga. (E le manaʻomia pe a faʻaaogaina le faʻamatalaga-autometi a le data-api.)

Metotia Fa'amatalaga
close Tapuni se mataala e ala i le aveese mai le DOM. Afai o le .fadema .showvasega o loʻo i ai i luga o le elemene, o le mataala o le a mou ese atu aʻo leʻi aveesea.
dispose Fa'aleagaina le mataala o se elemene. (Ave'ese fa'amaumauga o lo'o teuina ile elemene DOM)
getInstance Metotia static lea e mafai ai e oe ona maua le faʻataʻitaʻiga mataala e fesoʻotaʻi ma se elemene DOM. Mo se faataitaiga: bootstrap.Alert.getInstance(alert).
getOrCreateInstance Metotia static e toe faʻafoʻi ai se faʻataʻitaʻiga mataala e fesoʻotaʻi ma se elemene DOM poʻo le fatuina o se mea fou i le tulaga e leʻi amataina. E mafai ona e fa'aogaina fa'apenei: bootstrap.Alert.getOrCreateInstance(element).

Fa'aoga masani:

const alert = bootstrap.Alert.getOrCreateInstance('#myAlert')
alert.close()

Mea na tutupu

O le plugin alert a Bootstrap e fa'aalia ai ni nai mea na tutupu mo le fa'aogaina i galuega mataala.

Mea na tupu Fa'amatalaga
close.bs.alert E mu vave pe a closevala'au le auala fa'ata'ita'i.
closed.bs.alert Fa'amu ina ua tapunia le mataala ma ua mae'a suiga CSS. 
const myAlert = document.getElementById('myAlert')
myAlert.addEventListener('closed.bs.alert', event => {
  // do something, for instance, explicitly move focus to the most appropriate element,
  // so it doesn't get lost/reset to the start of the page
  // document.getElementById('...').focus()
})