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Tahadhari

Toa ujumbe wa maoni ya muktadha kwa vitendo vya kawaida vya mtumiaji na ujumbe mfupi wa arifa unaopatikana na rahisi.

Mifano

Arifa zinapatikana kwa urefu wowote wa maandishi, pamoja na kitufe cha hiari cha kukataa. Kwa mtindo unaofaa, tumia mojawapo ya madarasa manane ya muktadha yanayohitajika.alert-success (kwa mfano, ). Kwa uondoaji wa ndani, tumia arifa programu jalizi ya jQuery .

<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>
Kuwasilisha maana kwa teknolojia za usaidizi

Kutumia rangi ili kuongeza maana hutoa tu kielelezo cha kuona, ambacho hakitawasilishwa kwa watumiaji wa teknolojia saidizi - kama vile visoma skrini. Hakikisha kwamba maelezo yanayoashiriwa na rangi ni dhahiri kutoka kwa maudhui yenyewe (km maandishi yanayoonekana), au yanajumuishwa kupitia njia mbadala, kama vile maandishi ya ziada yaliyofichwa na .sr-onlydarasa.

Tumia .alert-linkdarasa la matumizi ili kutoa kwa haraka viungo vya rangi zinazolingana ndani ya tahadhari yoyote.

<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>

Maudhui ya ziada

Arifa zinaweza pia kuwa na vipengele vya ziada vya HTML kama vile vichwa, aya na vigawanyiko.

<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>

Kuondoa

Kwa kutumia programu-jalizi ya JavaScript ya tahadhari, inawezekana kuondoa arifa yoyote iliyo ndani ya mstari. Hivi ndivyo jinsi:

  • Hakikisha kuwa umepakia programu-jalizi ya tahadhari, au JavaScript iliyokusanywa ya Bootstrap.
  • Ikiwa unaunda JavaScript yetu kutoka kwa chanzo, inahitajiutil.js . Toleo lililokusanywa linajumuisha hii.
  • Ongeza kitufe cha kukataa na .alert-dismissibledarasa, ambalo huongeza pedi za ziada upande wa kulia wa arifa na kuweka .closekitufe.
  • Kwenye kitufe cha kuondoa, ongeza data-dismiss="alert"sifa, ambayo huanzisha utendaji wa JavaScript. Hakikisha unatumia <button>kipengele nacho kwa tabia ifaayo kwenye vifaa vyote.
  • Ili kuhuisha arifa unapoziondoa, hakikisha kuwa umeongeza .fadena .showmadarasa.

Unaweza kuona hili likitekelezwa na onyesho la moja kwa moja:

<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="close" data-dismiss="alert" aria-label="Close">
    <span aria-hidden="true">&times;</span>
  </button>
</div>

Tabia ya JavaScript

Vichochezi

Washa uondoaji wa arifa kupitia JavaScript:

$('.alert').alert()

Au na datasifa kwenye kitufe ndani ya arifa , kama inavyoonyeshwa hapo juu:

<button type="button" class="close" data-dismiss="alert" aria-label="Close">
  <span aria-hidden="true">&times;</span>
</button>

Kumbuka kuwa kufunga tahadhari kutaiondoa kutoka kwa DOM.

Mbinu

Njia Maelezo
$().alert() Hufanya arifa ya kusikiliza kwa matukio ya kubofya kwenye vipengele vya kizazi ambavyo vina data-dismiss="alert"sifa. (Sio lazima unapotumia uanzishaji kiotomatiki wa data-api.)
$().alert('close') Hufunga arifa kwa kuiondoa kwenye DOM. Ikiwa .fadena .showdarasa zipo kwenye kipengele, tahadhari itafifia kabla ya kuondolewa.
$().alert('dispose') Huharibu arifa ya kipengele. 
$('.alert').alert('close')

Matukio

Programu-jalizi ya tahadhari ya Bootstrap inafichua matukio machache ya kuunganisha katika utendaji wa tahadhari.

Tukio Maelezo
close.bs.alert Tukio hili huwaka mara moja wakati closenjia ya mfano inaitwa.
closed.bs.alert Tukio hili linafutwa wakati tahadhari imefungwa (itasubiri mabadiliko ya CSS kukamilika). 
$('#myAlert').on('closed.bs.alert', function () {
  // do something...
})