Source

Scrollspy

Ngamutahirkeun otomatis navigasi Bootstrap atawa daptar komponén grup dumasar kana posisi gulung pikeun nunjukkeun link mana nu ayeuna aktip dina viewport nu.

Kumaha gawéna

Scrollspy gaduh sababaraha sarat pikeun fungsina leres:

Upami anjeun nuju ngawangun JavaScript kami tina sumber, peryogiutil.js .
Éta kedah dianggo dina komponén nav Bootstrap atanapi grup daptar .
Scrollspy merlukeun position: relative;unsur nu nuju spionase, biasana dina <body>.
Nalika spionase on elemen lian ti éta <body>, pastikeun gaduh heightset sarta overflow-y: scroll;dilarapkeun.
Jangkar ( <a>) diwajibkeun sareng kedah nunjuk ka unsur anu aya id.

Nalika hasil dilaksanakeun, nav Anjeun atawa daptar grup bakal ngamutahirkeun sasuai, pindah .activekelas ti hiji item ka hareup dumasar kana target pakait.

Gulung wewengkon handap navbar jeung lalajo robah kelas aktip. Item dropdown bakal disorot ogé.

@gajih

Ad leggings keytar, brunch id pésta seni dolor kuli. Pitchfork yr enim lo-fi saméméh maranéhna dijual kaluar qui. Tumblr ladang-ka-méja hak sapedah naon. Anim keffiyeh carles cardigan. stan poto Velit seitan mcsweeney 3 serigala bulan irure. Cosby sweater lomo jean shorts, williamsburg hoodie minim qui Anjeun meureun geus teu ngadéngé éta et cardigan trust fund culpa biodiesel wes anderson estetika. Nihil tato accusamus, cred ironi 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 messenger bag marfa naon delectus food truck. Sapiente synth id assumenda. Locavore sed helvetica cliche ironi, thundercats Anjeun meureun geus teu ngadéngé éta consequat hoodie gluten bébas lo-fi fap aliquip. Labore elit placeat saméméh maranéhna dijual kaluar, terry richardson proident brunch nesciunt quis cosby baju haneut pariatur keffiyeh ut helvetica artisan. Cardigan karajinan bir 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>

Contona jeung nav nested

Scrollspy ogé jalan kalawan nested .navs. Lamun sarang .navtéh .active, kolotna ogé bakal .active. Gulung wewengkon gigireun navbar jeung lalajo robah kelas aktip.

Barang 1

Ex consequat commodo adipisicing exercitation aute excepteur occaecat ullamco duis aliqua id magna ullamco eu. Do aute ipsum ipsum ullamco cillum consectetur ut et aute consectetur labore. Fugiat laborum incididunt tempor eu consequat enim dolore proident. Qui laborum do non exceptioneur nulla magna eiusmod consectetur in. Aliqua et aliqua officia quis et incididunt voluptate non anim reprehenderit adipisicing dolore ut consequat deserunt mollit dolore. Aliquip nulla enim veniam non fugiat id cupidatat nulla elit cupidatat commodo velit ut eiusmod cupidatat elit dolore.

Item 1-1

Amet tempor mollit aliquip pariatur excepteur commodo do ea cillum commodo Lorem et occaecat elit qui et. Aliquip labore ex ex esse voluptate occaecat Lorem ullamco deserunt. Aliqua cillum excepteur irure consequat id quis ea. Sit 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 exercitation ullamco adipisicing voluptate excepteur minim exercitation minimum commodo adipisicing exercitation officia nisi adipisicing. Anim id duis qui consequat labore adipisicing sint dolor elit cillum anim et fugit.

Item 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

Labore sit culpa commodo elit adipisicing sit aliquip elit proident voluptate minim mollit nostrud aute reprehenderit do. Mollit excepteur eu Lorem ipsum anim commodo sint labore Lorem in exercitation velit incididunt. Occaecat consectetur nisi in occaecat proident minimal enim sunt reprehenderit exercitation cupidatat et do officia. Aliquip consequat ad labore labore 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>

Contona jeung daptar-grup

Scrollspy ogé jalan kalawan .list-groups. Gulung wewengkon gigireun grup daptar tur lalajo robah kelas aktip.

Barang 1 Barang 2 Barang 3 barang 4

Barang 1

Barang 2

Barang 3

barang 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>

Pamakéan

Via atribut data

Pikeun gampang nambahkeun kabiasaan scrollspy kana navigasi topbar Anjeun, tambahkeun data-spy="scroll"ka elemen rék nénjo dina (paling ilaharna ieu bakal jadi <body>). Teras tambahkeun data-targetatribut sareng ID atanapi kelas unsur indung tina .navkomponén 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>

Ngaliwatan JavaScript

Saatos nambahkeun position: relative;kana CSS anjeun, nelepon scrollspy via JavaScript:

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

target ID resolvable diperlukeun

Tumbu Navbar kudu boga target id resolvable. Contona, hiji <a href="#home">home</a>kudu pakait jeung hal di DOM kawas <div id="home"></div>.

Unsur non- `:visible`target teu dipalire

elemen target nu teu :visiblenurutkeun jQuery bakal dipaliré jeung item nav saluyu maranéhna bakal pernah disorot.

Métode

`.scrollspy('refresh')`

Nalika nganggo scrollspy sareng nambihan atanapi ngahapus unsur tina DOM, anjeun kedah nyauran metode refresh sapertos kieu:

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

`.scrollspy('dispose')`

Ngancurkeun scrollspy unsur urang.

Pilihan

Pilihan bisa diliwatan via atribut data atawa JavaScript. Pikeun atribut data, tambahkeun nami pilihan ka data-, sapertos dina data-offset="".

Ngaran	Tipe	Default	Katerangan
ngimbangan	angka	10	Piksel pikeun ngimbangan ti luhur nalika ngitung posisi ngagugulung.

Kajadian

Jenis Acara	Katerangan
activate.bs.scrollspy	Ieu acara seuneu dina unsur ngagugulung iraha wae hiji item anyar jadi diaktipkeun ku scrollspy nu.

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

Scrollspy

Kumaha gawéna

Contona dina navbar

@gajih

@mdo

one

two

three

Contona jeung nav nested

Barang 1

Item 1-1

Item 2-2

Item 2

Item 3

Item 3-1

Item 3-2

Contona jeung daptar-grup

Barang 1

Barang 2

Barang 3

barang 4

Pamakéan

Via atribut data

Ngaliwatan JavaScript

target ID resolvable diperlukeun

Unsur non- :visibletarget teu dipalire

Métode

.scrollspy('refresh')

.scrollspy('dispose')

Pilihan

Kajadian

Unsur non- `:visible`target teu dipalire

`.scrollspy('refresh')`

`.scrollspy('dispose')`