Sample android project using Gradle, with basic quality tools set up.
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Sample Android project using Gradle, with basic quality tools set up.

It can serve as a clean base for any Gradle Android project, and illustrates my articles about Gradle on my website.

The sample app computes Pi using various algorithms, and talks to a REST API.


The following libraries are used in the project:

  • ButterKnife
  • Dagger
  • Retrofit
  • RxAndroid


The base configuration to run quality test can be found in the /config directory. The followings tools are used:

  • Checkstyle
  • Findbugs
  • PMD
  • Lint
  • Infer

To run these quality tools and get reports, you need to execute the following Gradle command:

./gradlew check

By default, reports will be generated in app/build/reports.

See quality.gradle for configuration options of each tool. You can for example set:

  • The output format (xml or html)
  • Abort the task when a failure is found

Refer to the Gradle documentation to configure those plugins.


The project itself show various uses of the flavor system. Flavors are defined in build.gradle. The following four flavors are defined:


PI is computed using a approximation.


PI is computed using a mocked algorithm. REST communication is mocked through Dagger.


PI is computed using an exact algorithm.


PI is computed using a mocked algorithm. REST communication is mocked through MockWebServer.

You can define several properties to your flavors. One very useful is applicationId which let you change the application ID of your application. This can be used to generate different flavors of your application and install both of them on the same device (free and paid versions, dev, validation and release versions...).

You can also put specific sources and resources with flavors. As it is in this project, just create a directory under the src folder, name it with the name of your flavor, and put inside java codes and resources.


Work in progress...

To go further

This project is based on these two other projects, which are awesome. Consider take a look at them:


Copyright 2015 Vincent Brison.

Licensed 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

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
See the License for the specific language governing permissions and
limitations under the License.