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ʻO nā makaʻala

Hāʻawi i nā memo manaʻo hoʻopuka no nā hana maʻamau o ka mea hoʻohana me ka liʻiliʻi o nā memo makaʻala i loaʻa a maʻalahi.

Ma kēia ʻaoʻao

Nā laʻana

Loaʻa nā māka no kēlā me kēia lōʻihi o ke kikokikona, a me kahi pihi pani koho. No ke kāhiko pono ʻana, e hoʻohana i kekahi o nā ʻewalu mau papa pōʻaiapili i koi ʻia (e laʻa, .alert-success). No ka wehe ʻana i ka laina, e hoʻohana i ka plugin JavaScript alerts .

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>
Ka lawe ʻana i ka manaʻo i nā ʻenehana kōkua

ʻO ka hoʻohana ʻana i ke kala e hoʻohui i ka manaʻo e hāʻawi wale i kahi hōʻailona ʻike, ʻaʻole e hāʻawi ʻia i nā mea hoʻohana i nā ʻenehana kōkua - e like me nā mea heluhelu pale. E hōʻoia i ka ʻike i hōʻike ʻia e ka waihoʻoluʻu i ʻike ʻia mai ka maʻiʻo ponoʻī (e laʻa i ke kikokikona ʻike ʻia), a i ʻole e hoʻokomo ʻia ma o nā ala ʻē aʻe, e like me nā kikokikona hou i hūnā ʻia me ka .visually-hiddenpapa.

Laʻana ola

Kaomi i ke pihi ma lalo e hōʻike i kahi makaʻala (huna ʻia me nā ʻano inline e hoʻomaka ai), a laila hoʻopau (a luku) iā ia me ke pihi pani i kūkulu ʻia.

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

Hoʻohana mākou i ka JavaScript aʻe e hoʻomaka i kā mākou hōʻike makaala 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')
  })
}

E hoʻohana i ka .alert-linkpapa hana pono e hāʻawi koke i nā loulou kala like ʻole i loko o kekahi makaʻala.

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>

ʻO nā mea hou aku

Hiki ke loaʻa i nā ʻōlelo aʻoaʻo nā mea HTML hou e like me nā poʻo, nā paukū a me nā mea hoʻokaʻawale.

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>

Ikona

Pēlā nō, hiki iā ʻoe ke hoʻohana i nā pono flexbox a me nā Bootstrap Icons e hana i nā makaʻala me nā kiʻi. Ma muli o kāu mau ikona a me kāu ʻike, makemake paha ʻoe e hoʻohui i nā mea pono a i ʻole nā ​​ʻano maʻamau.

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>

Makemake ʻoe i ʻoi aku ma mua o hoʻokahi ikona no kāu mau māka? E noʻonoʻo e hoʻohana i nā kiʻi Bootstrap hou aʻe a hana i kahi sprite SVG kūloko e like me ka maʻalahi e kuhikuhi pinepine i nā kiʻi like.

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>

Hoʻokuʻu

Me ka hoʻohana ʻana i ka plugin JavaScript makaʻala, hiki ke hoʻokuʻu i kekahi makaʻala inline. Penei:

  • E ʻike pono ua hoʻouka ʻoe i ka plugin alert, a i ʻole ka Bootstrap JavaScript i hōʻuluʻulu ʻia.
  • E hoʻohui i kahi pihi pani a me ka .alert-dismissiblepapa, e hoʻohui i ka padding hou ma ka ʻākau o ka makaʻala a hoʻonoho i ke pihi pani.
  • Ma ke pihi pani, e hoʻohui i ke data-bs-dismiss="alert"ʻano, ka mea e hoʻoulu ai i ka hana JavaScript. E hoʻohana pono i ka <button>mea me ia no ka hana kūpono ma nā ʻaoʻao āpau.
  • No ka hoʻoulu ʻana i nā mākaʻikaʻi i ka wā e haʻalele ai iā lākou, e hōʻoia e hoʻohui i nā papa .fadea me .shownā papa.

Hiki iā ʻoe ke ʻike i kēia i ka hana me kahi demo 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>
Ke hoʻokuʻu ʻia kahi mākaʻikaʻi, wehe loa ʻia ka mea mai ka ʻaoʻao ʻaoʻao. Inā hoʻokuʻu ka mea hoʻohana keyboard i ka mākaʻikaʻi me ke pihi pani, e nalowale koke ko lākou manaʻo a, ma muli o ka polokalamu kele pūnaewele, e hoʻihoʻi i ka hoʻomaka o ka ʻaoʻao/palapala. No kēia kumu, paipai mākou e hoʻokomo i ka JavaScript hou e hoʻolohe ana i ka closed.bs.alerthanana a hoʻonohonoho papahana focus()i kahi kūpono loa o ka ʻaoʻao. Inā hoʻolālā ʻoe e hoʻoneʻe i ka manaʻo i kahi mea pili ʻole i loaʻa ʻole ka manaʻo maʻamau, e hōʻoia e hoʻohui tabindex="-1"i ka mea.

CSS

Nā mea hoʻololi

Hoʻohui ʻia ma v5.2.0

Ma ke ʻano o ka hoʻololi ʻana o nā ʻano hoʻololi CSS a Bootstrap, hoʻohana nā mākaʻikaʻi i nā ʻano CSS kūloko .alertno ka hoʻomaikaʻi ʻana i ka manawa maoli. Hoʻonohonoho ʻia nā waiwai no nā ʻano CSS ma o Sass, no laila ke kākoʻo mau ʻia nei ka hana maʻamau Sass.

  --#{$prefix}alert-bg: transparent;
  --#{$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};

Nā hoʻololi Sass

$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

Hoʻohana pū ʻia me $theme-colorska hana ʻana i nā papa hoʻololi ʻokoʻa no kā mākou mau makaʻala.

@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 hana i nā papa hoʻololi me ka 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);
  }
}

ʻO ka hana JavaScript

Hoʻomaka

E hoʻomaka i nā mea e like me nā makaʻala

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

No ke kumu hoʻokahi o ka hoʻokuʻu ʻana i kahi makaʻala, ʻaʻole pono e hoʻomaka i ka ʻāpana me ka lima ma o ka JS API. Ma ka hoʻohana ʻana iā data-bs-dismiss="alert", e hoʻomaka ʻakomi ʻia ka ʻāpana a hoʻokuʻu pono ʻia.

E ʻike i ka ʻāpana triggers no nā kikoʻī hou aku.

Nā mea hoʻoulu

Hiki ke hoʻokō ʻia ka hoʻokuʻu ʻana me ke ʻano datama kahi pihi i loko o ka makaʻala e like me ka hōʻike ʻana ma lalo nei:

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

a i ʻole ma kahi pihi ma waho o ka makaʻala me ka hoʻohana ʻana i ka data-bs-targetmea i hōʻike ʻia ma lalo nei:

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

E hoʻomaopopo ʻo ka pani ʻana i kahi makaʻala e wehe ia mai ka DOM.

Nā ʻano hana

Hiki iā ʻoe ke hana i kahi hiʻohiʻona makaʻala me ka mea hana makaʻala, no ka laʻana:

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

Hoʻomaopopo kēia i ka hoʻolohe ʻana i nā hanana kaomi ma nā ʻano mamo nona ka data-bs-dismiss="alert"ʻano. (ʻAʻole pono i ka wā e hoʻohana ai i ka hoʻomaka ʻana o ka data-api.)

Kaʻina hana wehewehe
close Pani i kahi makaʻala ma ka wehe ʻana iā ia mai ka DOM. Inā loaʻa ka .fadea me .shownā papa ma ka mea, e mae ka makaʻala ma mua o ka wehe ʻana.
dispose Hoʻopau i ka makaʻala o kahi mea. (Wehe i ka ʻikepili i mālama ʻia ma ka mea DOM)
getInstance ʻO ke ʻano static e hiki ai iā ʻoe ke kiʻi i ka hiʻohiʻona makaʻala e pili ana i kahi mea DOM. No ka laʻana: bootstrap.Alert.getInstance(alert).
getOrCreateInstance ʻO ke ʻano static e hoʻihoʻi i kahi ala makaʻala e pili ana i kahi mea DOM a i ʻole e hana i kahi mea hou inā ʻaʻole i hoʻomaka ʻia. Hiki iā ʻoe ke hoʻohana e like me kēia: bootstrap.Alert.getOrCreateInstance(element).

Hoʻohana kumu:

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

Nā hanana

Hōʻike ka plugin alert a Bootstrap i kekahi mau hanana no ka hoʻopili ʻana i ka hana makaʻala.

Hanana wehewehe
close.bs.alert Ke ahi koke ʻia ke closekāhea ʻia ke ʻano hana.
closed.bs.alert Hoʻopau ʻia i ka wā i pani ʻia ai ka makaʻala a ua pau nā hoʻololi 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()
})