android-workmanager

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This repository contains the code for the WorkManager Codelab:

Kotlin version

The Kotlin version of this codelab is available under the Kotlin branch of this repository.

Introduction

At I/O 2018 Google annouced Android Jetpack, a collection of libraries, tools and architectural guidance to accelerate and simplify the development of great Android apps. One of those libraries is the WorkManager library. The WorkManager library provides a unified API for deferrable one-off or recurring background tasks that need guaranteed execution. You can learn more by reading the WorkManager Guide, the WorkManager Reference or doing the WorkManager Codelab.

Pre-requisites

  • Android Studio 3.1 or later and you know how to use it.

  • Make sure Android Studio is updated, as well as your SDK and Gradle. Otherwise, you may have to wait for a while until all the updates are done.

  • A device or emulator that runs API level 16+

You need to be solidly familiar with the Java programming language, object-oriented design concepts, and Android Development Fundamentals. In particular:

  • Basic layouts and widgets
  • Some familiarity with Uris and File I/O
  • Familiarity with LiveData and ViewModel

Getting Started

  1. Install Android Studio, if you don't already have it.
  2. Download the sample.
  3. Import the sample into Android Studio.
  4. Build and run the sample.

Notes

On Android Studio 3.1, when opening the project, you may see the error:

Configuration on demand is not supported by the current version of the Android Gradle plugin since you are using Gradle version 4.6 or above. Suggestion: disable configuration on demand by setting org.gradle.configureondemand=false in your gradle.properties file or use a Gradle version less than 4.6.

This is a known issue with the Android Gradle Plugin 3.0.x and 3.1.x. You can follow this workaround to fix the issue.

License

Copyright 2018 Google, Inc.

All image and audio files (including .png, .jpg, .svg, .mp3, .wav and .ogg) are licensed under the CC BY 4.0 license. All other files are licensed under the Apache 2 license.

Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the LICENSE 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.

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