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<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright 2017 The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<sample>
<name>EffectiveNavigation</name>
<group>UI</group>
<package>com.example.android.effectivenavigation</package>
<!-- change minSdk if needed-->
<minSdk>9</minSdk>
<strings>
<intro>
<![CDATA[
This sample demonstrates how to create swipe views with tabs. Users can swipe
between tabs, or click on a tab title to jump to the section. Some tabs are
scrollable, meaning that users can scroll horizontally through the tab strip and
select a tab.
]]>
</intro>
<sample_action>Effective Navigation</sample_action>
</strings>
<metadata>
<status>PUBLISHED</status>
<categories>UI</categories>
<technologies>Android</technologies>
<languages>Java</languages>
<solutions>Mobile</solutions>
<level>BEGINNER</level>
<icon>screenshots/icon-web.png</icon>
<screenshots>
<img>screenshots/1-main.png</img>
<img>screenshots/2-collection.png</img>
</screenshots>
<api_refs>
<android>android.support.v4.view.ViewPager</android>
<android>android.support.design.widget.TabLayout</android>
<android>android.support.v4.app.NavUtils</android>
</api_refs>
<description>
<![CDATA[
This sample demonstrates how to create swipe views with tabs. Users can swipe
between tabs, or click on a tab title to jump to the section. Some tabs are
scrollable, meaning that users can scroll horizontally through the tab strip and
select a tab.
]]>
</description>
<intro>
<![CDATA[
This sample use combination of [ViewPager][1] and [TabLayout][2] to create swipe
views with tabs.
In order to use ViewPager, you first need to implement a PagerAdapter to feed
its content. In this sample, we use [FragmentPagerAdapter][3] and
[FragmentStatePagerAdapter][4]. FragmentPagerAdapter is useful when you have a
limited number of fixed pages. FragmentStatePagerAdapter can be used for
ViewPager with a lot of pages as it can save and restore state of Fragments
inside of it in a memory-efficient way.
Using TabLayout with ViewPager is simple. Just call the method
[setupWithViewPager(ViewPager)][5], and the TabLayout generates corresponding
tabs for the ViewPager. The titles are populated from [getPageTitle(int)][6]
method of your ViewPager adapter.
[1]: https://developer.android.com/reference/android/support/v4/view/ViewPager.html
[2]: https://developer.android.com/reference/android/support/design/widget/TabLayout.html
[3]: https://developer.android.com/reference/android/support/v4/app/FragmentPagerAdapter.html
[4]: https://developer.android.com/reference/android/support/v4/app/FragmentStatePagerAdapter.html
[5]: https://developer.android.com/reference/android/support/design/widget/TabLayout.html#setupWithViewPager(android.support.v4.view.ViewPager)
[6]: https://developer.android.com/reference/android/support/v4/view/PagerAdapter.html#getPageTitle(int)
]]>
</intro>
</metadata>
</sample>