1 2 Android HorizontalPaging Sample 3 =================================== 4 5 This sample shows how to implement tabs, using Fragments and a ViewPager. 6 7 Introduction 8 ------------ 9 10 This sample implements tabs using the deprecated [ActionBar.TabListener][1]. It uses [ViewPager][2] and 11 [FragmentPagerAdapter][3] to handle swiping between tabs and displaying the selected tab content. 12 13 14 1. Create an Activity that extends [FragmentActivity][4], with a [ViewPager][2] for its layout. 15 2. Implement [ActionBar.TabListener][1] interface. 16 3. Create a class that extends [FragmentPagerAdapter][3] and override its `getItem(int position)`, 17 `getCount()` and `getPageTitle(int position)` methods. 18 4. In the `onCreate(Bundle savedInstanceState)` method of your activity, set navigation mode to tabs for the 19 ActionBar using `setNavigationMode(ActionBar.NAVIGATION_MODE_TABS)`. Note: This is DEPRECATED as of Android 20 Lollipop. 21 5. Set your custom [FragmentPagerAdapter][3] on your [ViewPager][2]. 22 6. Implement `setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener())` on your [ViewPager][2] to 23 know the selected tab, so you can update your ActionBar with `setSelectedNavigationItem(position)`. 24 25 [1]: http://developer.android.com/reference/android/support/v7/app/ActionBar.TabListener.html 26 [2]: http://developer.android.com/reference/android/support/v4/view/ViewPager.html 27 [3]: http://developer.android.com/reference/android/support/v4/app/FragmentPagerAdapter.html 28 [4]: http://developer.android.com/reference/android/support/v4/app/FragmentActivity.html 29 30 Pre-requisites 31 -------------- 32 33 - Android SDK 28 34 - Android Build Tools v28.0.3 35 - Android Support Repository 36 37 Screenshots 38 ------------- 39 40 <img src="screenshots/1-tab1.png" height="400" alt="Screenshot"/> <img src="screenshots/2-tab2.png" height="400" alt="Screenshot"/> 41 42 Getting Started 43 --------------- 44 45 This sample uses the Gradle build system. To build this project, use the 46 "gradlew build" command or use "Import Project" in Android Studio. 47 48 Support 49 ------- 50 51 - Google+ Community: https://plus.google.com/communities/105153134372062985968 52 - Stack Overflow: http://stackoverflow.com/questions/tagged/android 53 54 If you've found an error in this sample, please file an issue: 55 https://github.com/googlesamples/android-HorizontalPaging 56 57 Patches are encouraged, and may be submitted by forking this project and 58 submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details. 59 60 License 61 ------- 62 63 Copyright 2019 The Android Open Source Project, Inc. 64 65 Licensed to the Apache Software Foundation (ASF) under one or more contributor 66 license agreements. See the NOTICE file distributed with this work for 67 additional information regarding copyright ownership. The ASF licenses this 68 file to you under the Apache License, Version 2.0 (the "License"); you may not 69 use this file except in compliance with the License. You may obtain a copy of 70 the License at 71 72 http://www.apache.org/licenses/LICENSE-2.0 73 74 Unless required by applicable law or agreed to in writing, software 75 distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 76 WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 77 License for the specific language governing permissions and limitations under 78 the License. 79
