v811_spc009/developers/samples/android/ui/actionbarcompat/ActionBarCompat-Basic

Android ActionBarCompat-Basic Sample

This sample shows you how to use ActionBarCompat to create a basic Activity which displays action items. It covers inflating items from a menu resource, as well as adding an item in code.

Introduction

Android 3.0 introduced the “action bar” control, a toolbar that is expected to be present in most types of applications. This control identifies the user location, and provides user actions and navigation modes. Using the action bar offers your users a familiar interface across applications that the system gracefully adapts for different screen configurations.

Instantiating an action bar can be done by using the ActionBar API provided in API 11 or above. Support for older devices is provided by the support library’s ActionBar implementation, compatible back to API 7. This sample demonstrates using the support library APIs.

Using an ActionBar with the support library requires the following steps:

1. Create your activity by extending AppCompatActivity.
2. Use (or extend) one of the Theme.AppCompat themes for your activity.

Once this is done, action items will be created for any options menu items that would otherwise be created during when [onCreateOptionsMenu()][3] is called.

Pre-requisites

• Android SDK 28
• Android Build Tools v28.0.3
• Android Support Repository

Screenshots

Getting Started

This sample uses the Gradle build system. To build this project, use the "gradlew build" command or use "Import Project" in Android Studio.

Support

• Google+ Community: https://plus.google.com/communities/105153134372062985968
• Stack Overflow: http://stackoverflow.com/questions/tagged/android

If you've found an error in this sample, please file an issue: https://github.com/googlesamples/android-ActionBarCompat-Basic

Patches are encouraged, and may be submitted by forking this project and submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.

License

Copyright 2019 The Android Open Source Project, Inc.

Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

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.