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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- qquicktabbar.cpp -->
  <title>TabBar QML Type | Qt Quick Controls 2 5.7</title>
  <link rel="stylesheet" type="text/css" href="style/offline-simple.css" />
  <script type="text/javascript">
    window.onload = function(){document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css");};
  </script>
</head>
<body>
<div class="header" id="qtdocheader">
  <div class="main">
    <div class="main-rounded">
      <div class="navigationbar">
        <table><tr>
<td >Qt 5.7</td><td ><a href="qtquickcontrols2-index.html">Qt Quick Controls 2</a></td><td ><a href="qtquick-controls2-qmlmodule.html">QML Types</a></td><td >TabBar QML Type</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.7.1 Reference Documentation</td>
        </tr></table>
      </div>
    </div>
<div class="content">
<div class="line">
<div class="content mainContent">
<div class="sidebar">
<div class="toc">
<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#properties">Properties</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
<li class="level2"><a href="#resizing-tabs">Resizing Tabs</a></li>
<li class="level2"><a href="#flickable-tabs">Flickable Tabs</a></li>
</ul>
</div>
<div class="sidebar-content" id="sidebar-content"></div></div>
<h1 class="title">TabBar QML Type</h1>
<span class="subtitle"></span>
<!-- $$$TabBar-brief -->
<p>A bar with icons allowing to switch between different views or subtasks. <a href="#details">More...</a></p>
<!-- @@@TabBar -->
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Import Statement:</td><td class="memItemRight bottomAlign"> import QtQuick.Controls 2.0</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign">  Qt 5.7</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <p><a href="qml-qtquick-controls2-container.html">Container</a></p>
</td></tr></table></div><ul>
<li><a href="qml-qtquick-controls2-tabbar-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="properties"></a>
<h2 id="properties">Properties</h2>
<ul>
<li class="fn"><b><b><a href="qml-qtquick-controls2-tabbar.html#position-prop">position</a></b></b> : enumeration</li>
</ul>
<!-- $$$TabBar-description -->
<a name="details"></a>
<h2 id="details">Detailed Description</h2>
</p>
<p><a href="qtquickcontrols2-navigation.html#tabbar">TabBar</a> provides a tab-based navigation model.</p>
<p class="centerAlign"><img src="images/qtquickcontrols2-tabbar-wireframe.png" alt="" /></p><p><a href="qtquickcontrols2-navigation.html#tabbar">TabBar</a> is populated with <a href="qml-qtquick-controls2-tabbutton.html">TabButton</a> controls, and can be used together with any layout or container control that provides <code>currentIndex</code> -property, such as <a href="../qtquick/qml-qtquick-layouts-stacklayout.html">StackLayout</a> or <a href="qml-qtquick-controls2-swipeview.html">SwipeView</a></p>
<pre class="qml">

  <span class="type"><a href="qml-qtquick-controls2-tabbar.html">TabBar</a></span> {
      <span class="name">id</span>: <span class="name">bar</span>
      <span class="name">width</span>: <span class="name">parent</span>.<span class="name">width</span>
      <span class="type"><a href="qml-qtquick-controls2-tabbutton.html">TabButton</a></span> {
          <span class="name">text</span>: <span class="name">qsTr</span>(<span class="string">&quot;Home&quot;</span>)
      }
      <span class="type"><a href="qml-qtquick-controls2-tabbutton.html">TabButton</a></span> {
          <span class="name">text</span>: <span class="name">qsTr</span>(<span class="string">&quot;Discover&quot;</span>)
      }
      <span class="type"><a href="qml-qtquick-controls2-tabbutton.html">TabButton</a></span> {
          <span class="name">text</span>: <span class="name">qsTr</span>(<span class="string">&quot;Activity&quot;</span>)
      }
  }

  <span class="type"><a href="../qtquick/qml-qtquick-layouts-stacklayout.html">StackLayout</a></span> {
      <span class="name">width</span>: <span class="name">parent</span>.<span class="name">width</span>
      <span class="name">currentIndex</span>: <span class="name">bar</span>.<span class="name">currentIndex</span>
      <span class="type"><a href="../qtquick/qml-qtquick-item.html">Item</a></span> {
          <span class="name">id</span>: <span class="name">homeTab</span>
      }
      <span class="type"><a href="../qtquick/qml-qtquick-item.html">Item</a></span> {
          <span class="name">id</span>: <span class="name">discoverTab</span>
      }
      <span class="type"><a href="../qtquick/qml-qtquick-item.html">Item</a></span> {
          <span class="name">id</span>: <span class="name">activityTab</span>
      }
  }

</pre>
<a name="resizing-tabs"></a>
<h3 >Resizing Tabs</h3>
<p>By default, <a href="qtquickcontrols2-navigation.html#tabbar">TabBar</a> resizes its buttons to fit the width of the control. The available space is distributed equally to each button. The default resizing behavior can be overridden by setting an explicit width for the buttons.</p>
<p>The following example illustrates how to keep each tab button at their implicit size instead of being resized to fit the tabbar:</p>
<div class="border"><p class="centerAlign"><img src="images/qtquickcontrols2-tabbar-explicit.png" alt="" /></p></div><pre class="qml">

  <span class="type"><a href="qml-qtquick-controls2-tabbar.html">TabBar</a></span> {
      <span class="name">width</span>: <span class="name">parent</span>.<span class="name">width</span>
      <span class="type"><a href="qml-qtquick-controls2-tabbutton.html">TabButton</a></span> {
          <span class="name">text</span>: <span class="string">&quot;First&quot;</span>
          <span class="name">width</span>: <span class="name">implicitWidth</span>
      }
      <span class="type"><a href="qml-qtquick-controls2-tabbutton.html">TabButton</a></span> {
          <span class="name">text</span>: <span class="string">&quot;Second&quot;</span>
          <span class="name">width</span>: <span class="name">implicitWidth</span>
      }
      <span class="type"><a href="qml-qtquick-controls2-tabbutton.html">TabButton</a></span> {
          <span class="name">text</span>: <span class="string">&quot;Third&quot;</span>
          <span class="name">width</span>: <span class="name">implicitWidth</span>
      }
  }

</pre>
<a name="flickable-tabs"></a>
<h3 >Flickable Tabs</h3>
<p>If the total width of the buttons exceeds the available width of the tab bar, it automatically becomes flickable.</p>
<p class="centerAlign"><img src="images/qtquickcontrols2-tabbar-flickable.png" alt="" /></p><pre class="qml">

  <span class="type"><a href="qml-qtquick-controls2-tabbar.html">TabBar</a></span> {
      <span class="name">id</span>: <span class="name">bar</span>
      <span class="name">width</span>: <span class="name">parent</span>.<span class="name">width</span>

      <span class="type"><a href="../qtquick/qml-qtquick-repeater.html">Repeater</a></span> {
          <span class="name">model</span>: [<span class="string">&quot;First&quot;</span>, <span class="string">&quot;Second&quot;</span>, <span class="string">&quot;Third&quot;</span>, <span class="string">&quot;Fourth&quot;</span>, <span class="string">&quot;Fifth&quot;</span>]

          <span class="type"><a href="qml-qtquick-controls2-tabbutton.html">TabButton</a></span> {
              <span class="name">text</span>: <span class="name">modelData</span>
              <span class="name">width</span>: <span class="name">Math</span>.<span class="name">max</span>(<span class="number">100</span>, <span class="name">bar</span>.<span class="name">width</span> <span class="operator">/</span> <span class="number">5</span>)
          }
      }
  }

</pre>
<p><b>See also </b><a href="qml-qtquick-controls2-tabbutton.html">TabButton</a>, <a href="qtquickcontrols2-customize.html#customizing-tabbar">Customizing TabBar</a>, <a href="qtquickcontrols2-navigation.html">Navigation Controls</a>, and <a href="qtquickcontrols2-containers.html">Container Controls</a>.</p>
<!-- @@@TabBar -->
<h2>Property Documentation</h2>
<!-- $$$position -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="position-prop">
<td class="tblQmlPropNode"><p>
<a name="position-prop"></a><span class="name">position</span> : <span class="type">enumeration</span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds the position of the tab bar.</p>
<p><b>Note: </b>If the tab bar is assigned as a header or footer of <a href="qml-qtquick-controls2-applicationwindow.html">ApplicationWindow</a> or Page, the appropriate position is set automatically.</p><p>Possible values:</p>
<div class="table"><table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tbldscr">Description</th></tr>
<tr><td class="topAlign"><code>TabBar.Header</code></td><td class="topAlign">The tab bar is at the top, as a window or page header.</td></tr>
<tr><td class="topAlign"><code>TabBar.Footer</code></td><td class="topAlign">The tab bar is at the bottom, as a window or page footer.</td></tr>
</table></div>
<p>The default value is style-specific.</p>
<p><b>See also </b><a href="qml-qtquick-controls2-applicationwindow.html#header-attached-prop">ApplicationWindow::header</a>, <a href="qml-qtquick-controls2-applicationwindow.html#footer-attached-prop">ApplicationWindow::footer</a>, <a href="qml-qtquick-controls2-page.html#header-prop">Page::header</a>, and <a href="qml-qtquick-controls2-page.html#footer-prop">Page::footer</a>.</p>
</div></div><!-- @@@position -->
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