Scrollspy

Fa'afou otometi le Bootstrap navigation po'o le lisi o vaega vaega e fa'atatau i le tulaga ta'ai e fa'ailoa ai po'o fea so'otaga o lo'o galue i le va'aiga.

E faapefea ona galue

Scrollspy ei ai ni nai mana'oga e galue lelei:

Afai o loʻo e fausiaina la matou JavaScript mai le puna, e manaʻomiautil.js .
E tatau ona fa'aogaina i luga o se vaega Bootstrap nav po'o se vaega lisi .
Scrollspy e manaʻomia position: relative;le elemene o loʻo e vaʻavaʻai i ai, e masani lava o le <body>.
A e vaʻavaʻai i elemene e ese mai i le <body>, ia mautinoa e iai se heightseti ma overflow-y: scroll;faʻaoga.
O taula ( <a>) e mana'omia ma e tatau ona faasino i se elemene o lo'o iai lena id.

A manuia le fa'atinoina, o lau nav po'o le lisi o vaega o le a fa'afouina e tusa ai, ma fa'agasolo le .activevasega mai le tasi mea i le isi e fa'atatau i a latou fa'atatauga.

Fa'asolo le vaega i lalo o le navbar ma matamata le suiga o le vasega. O mea e pa'u i lalo o le a fa'ailogaina fo'i.

@ga'o

Ad leggings keytar, brunch id art party dolor laboure. Pitchfork yr enim lo-fi ae le'i fa'atau atu. Tumblr farm-to-table uila aia tatau po o le a lava. Anim keffiyeh carles cardigan. Velit seitan mcsweeney's photo booth 3 wolf moon irure. Cosby sweater lomo jean shorts, williamsburg hoodie minim qui masalo e te le'i faalogo iai ma cardigan trust fund culpa biodiesel wes anderson aesthetic. Nihil tattooed accusamus, cred irony biodiesel keffiyeh artisan ullamco consequat.

@mdo

Veniam marfa mustache skateboard, adipisicing fugiat velit pitchfork beard. Freegan beard aliqua cupidatat mcsweeney's vero. Cupidatat four loko nisi, ea helvetica nulla carles. Tattooed cosby sweater food truck, mcsweeney's quis non freegan vinyl. Lo-fi wes anderson +1 sartorial. Carles non aesthetic exercitation quis gentrify. Brooklyn adipisicing craft beer vice keytar deserunt.

one

Occaecat commodo aliqua delectus. Fap craft beer deserunt skateboard ea. Lomo bicycle rights adipisicing banh mi, velit ea sunt next level locavore single-origin coffee in magna veniam. High life id vinyl, echo park consequat quis aliquip banh mi pitchfork. Vero VHS est adipisicing. Consectetur nisi DIY minim messenger bag. Cred ex in, sustainable delectus consectetur fanny pack iphone.

two

In incididunt echo park, officia deserunt mcsweeney's proident master cleanse thundercats sapiente veniam. Excepteur VHS elit, proident shoreditch +1 biodiesel laborum craft beer. Single-origin coffee wayfarers irure four loko, cupidatat terry richardson master cleanse. Assumenda you probably haven't heard of them art party fanny pack, tattooed nulla cardigan tempor ad. Proident wolf nesciunt sartorial keffiyeh eu banh mi sustainable. Elit wolf voluptate, lo-fi ea portland before they sold out four loko. Locavore enim nostrud mlkshk brooklyn nesciunt.

three

Ad leggings keytar, brunch id art party dolor labore. Pitchfork yr enim lo-fi before they sold out qui. Tumblr farm-to-table bicycle rights whatever. Anim keffiyeh carles cardigan. Velit seitan mcsweeney's photo booth 3 wolf moon irure. Cosby sweater lomo jean shorts, williamsburg hoodie minim qui you probably haven't heard of them et cardigan trust fund culpa biodiesel wes anderson aesthetic. Nihil tattooed accusamus, cred irony biodiesel keffiyeh artisan ullamco consequat.

Keytar twee blog, culpa avefe'au taga marfa so'o se loli meaai. Sapiente synth id assumenda. Locavore sed helvetica cliche irony, thundercats masalo e te le'i faalogo ia i latou consequat hoodie gluten-free lo-fi fap aliquip. Laboure elit placeat ae le'i fa'atau atu, terry richardson proident brunch nesciunt quis cosby sweater pariatur keffiyeh ut helvetica artisan. Cardigan craft beer seitan readymade velit. VHS chambray laboris tempor veniam. Anim mollit minim commodo ullamco thundercats.

<nav id="navbar-example2" class="navbar navbar-light bg-light">
  <a class="navbar-brand" href="#">Navbar</a>
  <ul class="nav nav-pills">
    <li class="nav-item">
      <a class="nav-link" href="#fat">@fat</a>
    </li>
    <li class="nav-item">
      <a class="nav-link" href="#mdo">@mdo</a>
    </li>
    <li class="nav-item dropdown">
      <a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false">Dropdown</a>
      <div class="dropdown-menu">
        <a class="dropdown-item" href="#one">one</a>
        <a class="dropdown-item" href="#two">two</a>
        <div role="separator" class="dropdown-divider"></div>
        <a class="dropdown-item" href="#three">three</a>
      </div>
    </li>
  </ul>
</nav>
<div data-spy="scroll" data-target="#navbar-example2" data-offset="0">
  <h4 id="fat">@fat</h4>
  <p>...</p>
  <h4 id="mdo">@mdo</h4>
  <p>...</p>
  <h4 id="one">one</h4>
  <p>...</p>
  <h4 id="two">two</h4>
  <p>...</p>
  <h4 id="three">three</h4>
  <p>...</p>
</div>

Fa'aa'oa'oga fa'atasi ma fa'anofo fa'anofo

E galue fo'i Scrollspy i fa'aputuga .navs. Afai o se faamoega , .nave .activefaapena foi ona matua .active. Fa'asolo le vaega i tafatafa o le navbar ma matamata le suiga o le vasega.

Aitema 1

Ex consequat commodo adipisicing exercitation aute excepteur occaecat ullamco duis aliqua id magna ullamco eu. Fai aute ipsum ipsum ullamco cillum consectetur ut et aute consectetur labore. Fugit laborum incididunt tempor eu consequat enim dolore proident. E leai se galuega e mafai ona e faia e aunoa ma se fa'atulafonoina i totonu. Aliquip nulla enim veniam non fugiat id cupidatat nulla elit cupidatat commodo velit ut eiusmod cupidatat elit dolore.

Aitema 1-1

Amet tempor mollit aliquip pariatur excepteur commodo do ea cillum commodo Lorem et occaecat elit qui et. Aliquip laboure ex ex esse voluptate occaecat Lorem ullamco deserunt. Aliqua cillum excepteur irure consequat id quis ea. Nofo proident ullamco aute magna pariatur nostrud labore. Reprehenderit aliqua commodo eiusmod aliquip est do duis amet proident magna consectetur consequat eu commodo fugiat non quis. Enim aliquip fa'amalositino ullamco adipisicing voluptate se'i vaganā ai la'ititi fa'amalositino la'ititi commodo adipisicing fa'amalositino officia nisi adipisicing. Anim id duis qui consequat labore adipisicing sint dolor elit cillum anim et fugiat.

Aitema 2-2

Cillum nisi deserunt magna eiusmod qui eiusmod velit voluptate pariatur laborum sunt enim. Irure laboris mollit consequat incididunt sint et culpa culpa incididunt adipisicing magna magna occaecat. Nulla ipsum cillum eiusmod sint elit excepteur ea labore enim consectetur in labore anim. Proident ullamco ipsum esse elit ut Lorem eiusmod dolor et eiusmod. Anim occaecat nulla in non consequat eiusmod velit incididunt.

Item 2

Quis magna Lorem anim amet ipsum do mollit sit cillum voluptate ex nulla tempor. Laborum consequat non elit enim exercitation cillum aliqua consequat id aliqua. Esse ex consectetur mollit voluptate est in duis laboris ad sit ipsum anim Lorem. Incididunt veniam velit elit elit veniam Lorem aliqua quis ullamco deserunt sit enim elit aliqua esse irure. Laborum nisi sit est tempor laborum mollit labore officia laborum excepteur commodo non commodo dolor excepteur commodo. Ipsum fugiat ex est consectetur ipsum commodo tempor sunt in proident.

Item 3

Quis anim sit do amet fugiat dolor velit sit ea ea do reprehenderit culpa duis. Nostrud aliqua ipsum fugiat minim proident occaecat excepteur aliquip culpa aute tempor reprehenderit. Deserunt tempor mollit elit ex pariatur dolore velit fugiat mollit culpa irure ullamco est ex ullamco excepteur.

Item 3-1

Deserunt quis elit Lorem eiusmod amet enim enim amet minim Lorem proident nostrud. Ea id dolore anim exercitation aute fugiat labore voluptate cillum do laboris labore. Ex velit exercitation nisi enim labore reprehenderit labore nostrud ut ut. Esse officia sunt duis aliquip ullamco tempor eiusmod deserunt irure nostrud irure. Ullamco proident veniam laboris ea consectetur magna sunt ex exercitation aliquip minim enim culpa occaecat exercitation. Est tempor excepteur aliquip laborum consequat do deserunt laborum esse eiusmod irure proident ipsum esse qui.

Item 3-2

E mafai ona e galue i lalo o le tulafono e sili atu ona lelei e nofo ai i luga ole laiga e mafai ona e faia. Mollit excepteur eu Lorem ipsum anim commodo sint labore Lorem in exercitation velit incididunt. Occaecat consectetur nisi i occaecat proident minim enim sunt reprehenderit exercitation cupidatat and do officia. Fa'asoa fa'atasi ma galuega faigaluega mollit ut amet. Sit pariatur tempor proident in veniam culpa aliqua excepteur elit magna fugiat eiusmod amet officia.

<nav id="navbar-example3" class="navbar navbar-light bg-light">
  <a class="navbar-brand" href="#">Navbar</a>
  <nav class="nav nav-pills flex-column">
    <a class="nav-link" href="#item-1">Item 1</a>
    <nav class="nav nav-pills flex-column">
      <a class="nav-link ml-3 my-1" href="#item-1-1">Item 1-1</a>
      <a class="nav-link ml-3 my-1" href="#item-1-2">Item 1-2</a>
    </nav>
    <a class="nav-link" href="#item-2">Item 2</a>
    <a class="nav-link" href="#item-3">Item 3</a>
    <nav class="nav nav-pills flex-column">
      <a class="nav-link ml-3 my-1" href="#item-3-1">Item 3-1</a>
      <a class="nav-link ml-3 my-1" href="#item-3-2">Item 3-2</a>
    </nav>
  </nav>
</nav>

<div data-spy="scroll" data-target="#navbar-example3" data-offset="0">
  <h4 id="item-1">Item 1</h4>
  <p>...</p>
  <h5 id="item-1-1">Item 1-1</h5>
  <p>...</p>
  <h5 id="item-1-2">Item 2-2</h5>
  <p>...</p>
  <h4 id="item-2">Item 2</h4>
  <p>...</p>
  <h4 id="item-3">Item 3</h4>
  <p>...</p>
  <h5 id="item-3-1">Item 3-1</h5>
  <p>...</p>
  <h5 id="item-3-2">Item 3-2</h5>
  <p>...</p>
</div>

Faataitaiga ma lisi-vaega

E galue foi Scrollspy ma .list-groups. Fa'asolo le vaega i talaane o le vaega o le lisi ma matamata le suiga o le vasega.

Aitema 1 Aitema 2 Aitema 3 Aitema 4

Aitema 1

Aitema 2

Quis magna Lorem anim amet ipsum do mollit sit cillum voluptate ex nulla tempor. Laborum consequat non elit enim exercitation cillum aliqua consequat id aliqua. Esse ex consectetur mollit voluptate est in duis laboris ad sit ipsum anim Lorem. Fa'alavelave fa'afuase'i lorem aliqua quis ullamco deserunt sit enim elit aliqua esse irure. Laborum nisi sit est tempor laborum mollit labore officia laborum excepteur commodo non commodo dolor excepteur commodo. Ipsum fugit ex est consectetur ipsum commodo tempor sunt in proident.

Aitema 3

O le mea lea, o le mea lea, e mafai ona e toe fa'afofogaina le agasala. Nostrud aliqua ipsum fugit minim proident occaecat excepteur aliquip culpa aute tempor reprehenderit. Deserunt tempor mollit elit ex pariatur dolore velit fugiat mollit culpa irure ullamco est ex ullamco excepteur.

Aitema 4

<div id="list-example" class="list-group">
  <a class="list-group-item list-group-item-action" href="#list-item-1">Item 1</a>
  <a class="list-group-item list-group-item-action" href="#list-item-2">Item 2</a>
  <a class="list-group-item list-group-item-action" href="#list-item-3">Item 3</a>
  <a class="list-group-item list-group-item-action" href="#list-item-4">Item 4</a>
</div>
<div data-spy="scroll" data-target="#list-example" data-offset="0" class="scrollspy-example">
  <h4 id="list-item-1">Item 1</h4>
  <p>...</p>
  <h4 id="list-item-2">Item 2</h4>
  <p>...</p>
  <h4 id="list-item-3">Item 3</h4>
  <p>...</p>
  <h4 id="list-item-4">Item 4</h4>
  <p>...</p>
</div>

Fa'aoga

E ala i fa'amaumauga uiga

Ina ia fa'afaigofie ona fa'aopoopo le amio ta'avale i lau ta'avale pito i luga, fa'aopoopo data-spy="scroll"i le elemene e te mana'o e sipai ai (e masani lava o le <body>). Ona faʻaopoopo lea o le data-targetuiga faʻatasi ma le ID poʻo le vasega o le matua elemene o soʻo se .navvaega Bootstrap.

body {
  position: relative;
}

<body data-spy="scroll" data-target="#navbar-example">
  ...
  <div id="navbar-example">
    <ul class="nav nav-tabs" role="tablist">
      ...
    </ul>
  </div>
  ...
</body>

E ala i le JavaScript

A uma ona faʻaopoopo position: relative;i lau CSS, valaʻau le scrollspy e ala i le JavaScript:

$('body').scrollspy({ target: '#navbar-example' })

E mana'omia ni fa'ailoga ID e mafai ona fo'ia

O feso'ota'iga Navbar e tatau ona i ai ni fa'ailoga id e mafai ona fo'ia. Mo se faʻataʻitaʻiga, e <a href="#home">home</a>tatau ona fetaui ma se mea i le DOM pei <div id="home"></div>.

O `:visible`elemene e le fa'atatauina ua le amana'ia

O elemene faʻatatau e le :visibletusa ai ma le jQuery o le a le amanaʻia ma o latou mea nav fetaui o le a le faʻamaonia lava.

Metotia

`.scrollspy('refresh')`

A faʻaaoga le scrollspy faʻatasi ma le faʻaopoopoina poʻo le aveesea o elemene mai le DOM, e tatau ona e valaʻau le auala faʻafouina e pei o lea:

$('[data-spy="scroll"]').each(function () {
  var $spy = $(this).scrollspy('refresh')
})

`.scrollspy('dispose')`

Fa'aleagaina le ta'avale a se elemene.

Filifiliga

O filifiliga e mafai ona pasia e ala i faʻamatalaga uiga poʻo le JavaScript. Mo fa'amatalaga uiga, fa'aopoopo le igoa filifiliga i le data-, pei o le data-offset="".

Igoa	Ituaiga	Fa'atonu	Fa'amatalaga
fa'apena	numera	10	Pixels e fa'asolo mai luga pe a fa'atatau le tulaga o le ta'ai.

Mea na tutupu

Ituaiga Mea	Fa'amatalaga
activate.bs.scrollspy	O lenei mea na tupu e mu i luga o le elemene taʻavale i soo se taimi e faʻagaoioia ai se mea fou e le scrollspy.

$('[data-spy="scroll"]').on('activate.bs.scrollspy', function () {
  // do something…
})

Scrollspy

E faapefea ona galue

Faataitaiga i le navbar

@ga'o

@mdo

one

two

three

Fa'aa'oa'oga fa'atasi ma fa'anofo fa'anofo

Aitema 1

Aitema 1-1

Aitema 2-2

Item 2

Item 3

Item 3-1

Item 3-2

Faataitaiga ma lisi-vaega

Aitema 1

Aitema 2

Aitema 3

Aitema 4

Fa'aoga

E ala i fa'amaumauga uiga

E ala i le JavaScript

E mana'omia ni fa'ailoga ID e mafai ona fo'ia

O :visibleelemene e le fa'atatauina ua le amana'ia

Metotia

.scrollspy('refresh')

.scrollspy('dispose')

Filifiliga

Mea na tutupu

O `:visible`elemene e le fa'atatauina ua le amana'ia

`.scrollspy('refresh')`

`.scrollspy('dispose')`