Source

Scrollspy

Ntlafatsa ka boiketsetso ho tsamaea ha Bootstrap kapa lethathamo la likarolo tsa sehlopha ho ipapisitse le boemo ba moqolo ho bontša hore na ke sehokelo sefe se sebetsang hona joale boema-kepe.

Kamoo e sebetsang kateng

Scrollspy e na le litlhoko tse 'maloa hore e sebetse hantle:

Haeba u theha JavaScript ea rona ho tsoa mohloling, e hlokautil.js .
E tlameha ho sebelisoa ho karolo ea Bootstrap nav kapa sehlopha sa lenane .
Scrollspy e hloka position: relative;ntho eo u ntseng u e hloela, hangata <body>.
Ha u hloela lintho tse ling ntle le <body>, etsa bonnete ba hore u na le heightsete le overflow-y: scroll;ho sebelisoa.
Liankora ( <a>) lia hlokahala 'me li tlameha ho supa ntho e nang le eona id.

Ha e kengoa tšebetsong ka katleho, sehlopha sa hau sa nav kapa lethathamo se tla nchafatsa ka nepo, se tsamaisa .activesehlopha ho tloha nthong e 'ngoe ho ea ho se seng ho latela lipehelo tse amanang le tsona.

Tsamaisetsa sebaka se ka tlase ho navbar 'me u shebelle phetoho ea sehlopha se sebetsang. Lintho tse theoleloang li tla totobatsoa hape.

@mafura

Ad leggings keytar, brunch id art party dolor labore. Pitchfork yr enim lo-fi pele ba rekisa qui. Litokelo tsa libaesekele tsa polasi-to-tafola tsa Tumblr eng kapa eng. Anim keffiyeh carles cardigan. Velit seitan mcsweeney's photo booth 3 wolf moon irure. Cosby sweater lomo jean shorts, williamsburg hoodie minim qui mohlomong ha u e-s'o utloe ka tsona et 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 messenger bag marfa whatever delectus food truck. Sapiente synth id guessnda. Locavore sed helvetica cliche irony, thundercats mohlomong ha u so utloe ka tsona consequat hoodie gluten-free lo-fi fap aliquip. Labore elit placeat pele ba rekisa, terry richardson proident brunch nesciunt quis cosby sweater pariatur keffiyeh ut helvetica artisan. Cardigan craft biri 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>

Mohlala ka sehlaha nav

Scrollspy e boetse e sebetsa le sehlaha sa .navs. Haeba sehlaha .navse le teng .active, batsoali ba sona le bona ba tla .active. Tsamaisetsa sebaka se haufi le navbar 'me u shebelle phetoho ea sehlopha se sebetsang.

Ntlha ea 1

Ex consequat commodo adipisicing exercitation aute excepteur occaecat ullamco duis aliqua id magna ullamco eu. Etsa hore u ipsum ipsum ullamco cillum consectetur ut aute consectetur labore. Fugiat laborum incididunt tempor eu consequat enim dolore proident. Qui laborum do non excepteur 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.

Ntlha ea 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 minim commodo adipisicing exercitation officia nisi adipisicing. Anim id duis qui consequat labore adipisicing sint dolor elit cillum anim et fugiat.

Ntlha ea 1-2

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 minim 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 1-2</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>

Mohlala le sehlopha-sehlopha

Scrollspy e boetse e sebetsa le .list-groups. Tsamaisetsa sebaka se haufi le sehlopha sa lenane mme o shebelle ho fetoha ha sehlopha se sebetsang.

Ntlha ea 1 Ntlha ea 2 Ntlha ea 3 Ntlha ea 4

Ntlha ea 1

Ntlha ea 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. Hoa makatsa hore ebe ha ho na letho leo u ka le etsang le le leng le le leng la Lorem. 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.

Ntlha ea 3

Ntlha ea 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>

Tšebeliso

Ka litšobotsi tsa data

Ho eketsa habonolo boits'oaro ba scrollspy ho navigation ea topbar ea hau, eketsa nthong data-spy="scroll"eo u batlang ho e hloela (haholo-holo ena e tla ba eona <body>). Ebe u eketsa data-targettšobotsi ka ID kapa sehlopha sa karolo ea motsoali ea karolo efe kapa efe ea Bootstrap .nav.

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>

Ka JavaScript

Kamora ho kenya position: relative;CSS ea hau, letsetsa scrollspy ka JavaScript:

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

Lipehelo tsa ID tse rarollehang lia hlokahala

Lihokelo tsa Navbar li tlameha ho ba le lipehelo tsa id tse rarollehang. Ka mohlala, e <a href="#home">home</a>tlameha ho lumellana le ntho e 'ngoe e DOM e kang <div id="home"></div>.

Lintho tse sa lebelloang `:visible`li hlokomolohuoe

Lintlha tse reriloeng tse sa lumellaneng :visiblele jQuery li tla hlokomolohuoa 'me lintho tse tsamaisanang le tsona li ke ke tsa hlakisoa.

Mekhoa

`.scrollspy('refresh')`

Ha o sebelisa scrollspy mmoho le ho eketsa kapa ho tlosa likarolo ho tsoa ho DOM, o tla hloka ho letsetsa mokhoa oa ho khatholla joalo ka:

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

`.scrollspy('dispose')`

E senya scrollpy ea element.

Dikgetho

Likhetho li ka fetisoa ka lintlha tsa data kapa JavaScript. Bakeng sa litšobotsi tsa data, kenya lebitso la khetho ho data-, joalo ka data-offset="".

Lebitso	Mofuta	Ea kamehla	Tlhaloso
offset	palo	10	Lipikseli tsa ho theola ho tloha holimo ha ho baloa boemo ba ho tsamaisa.
mokhoa	khoele	koloi	E fumana hore na karolo ea spied e ho karolo efe. `auto`e tla khetha mokhoa o motle oa ho fumana likhokahano tsa meqolo. `offset`e tla sebelisa mokhoa oa jQuery offset ho fumana likhokahano tsa moqolo. `position`e tla sebelisa mokhoa oa boemo ba jQuery ho fumana likhokahano tsa moqolo.
sepheo	khoele		E hlakisa ntho eo u ka e sebelisang ho sebelisa plugin ea Scrollspy.

Liketsahalo

Mofuta oa Ketsahalo	Tlhaloso
kenya tshebetsong.bs.scrollpy	Ketsahalo ena e sebetsa ho karolo ea moqolo neng kapa neng ha ntho e ncha e kengoa tšebetsong ke scrollspy.

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

Scrollspy

Kamoo e sebetsang kateng

Mohlala ho navbar

@mafura

@mdo

one

two

three

Mohlala ka sehlaha nav

Ntlha ea 1

Ntlha ea 1-1

Ntlha ea 1-2

Item 2

Item 3

Item 3-1

Item 3-2

Mohlala le sehlopha-sehlopha

Ntlha ea 1

Ntlha ea 2

Ntlha ea 3

Ntlha ea 4

Tšebeliso

Ka litšobotsi tsa data

Ka JavaScript

Lipehelo tsa ID tse rarollehang lia hlokahala

Lintho tse sa lebelloang :visibleli hlokomolohuoe

Mekhoa

.scrollspy('refresh')

.scrollspy('dispose')

Dikgetho

Liketsahalo

Lintho tse sa lebelloang `:visible`li hlokomolohuoe

`.scrollspy('refresh')`

`.scrollspy('dispose')`