czak/minimal-android-project

Absolutely minimal Android project

minimal-android-project

This repository explores how simple it can be to set up a valid, working Android project. You will need:

• One .java activity source file, placed in its appropriate package directory
• One AndroidManifest.xml
• One build.gradle
  • Certainly this is optional, as you can build the project using command line tools from the Android SDK. But let's not complicate things unnecessarily.

For more in-depth information about this repository, see my blog post.

How to build

$ git clone https://github.com/czak/minimal-android-project.git
$ gradle installDebug

The app will be installed on all devices accessible to adb.

Notes

This project makes a few assumptions about your environment in order to build correctly:

• You have gradle 2.10 installed - there is no Gradle Wrapper included.
• You have JAVA_HOME set up. If you have java in your path, you should be good to go.
• You have ANDROID_HOME set to the root folder of your Android SDK installation.
• SDK and build tools versions are hardcoded in build.gradle to 23 and 23.0.2, respectively.

Additionally, the folder structure relies on the source set convention expected by the Gradle Android plugin:

project
 ├── build.gradle
 └── src
     └── main
         ├── AndroidManifest.xml
         └── java
             └── pl
                 └── czak
                     └── minimal
                         └── MainActivity.java

Contact

Suggestions on how to minimize this further are welcome!

minimal-android-project's Issues

Adding gradle-wrapper fails

I was trying to add gradle-wrapper for this project according to this instruction: https://docs.gradle.org/current/userguide/gradle_wrapper.html

So I ran the following command in the project directory:
gradle wrapper --gradle-version 2.0
and got an error:

scadge@scadge-Inspiron-3537 ~/minimal-android-project $ gradle wrapper --gradle-version 2.0

FAILURE: Build failed with an exception.

* Where:
Build file '/home/scadge/minimal-android-project/build.gradle' line: 10

* What went wrong:
A problem occurred evaluating root project 'minimal-android-project'.
> Failed to apply plugin [id 'com.android.application']
   > Gradle version 2.2 is required. Current version is 3.0. If using the gradle wrapper, try editing the distributionUrl in /home/scadge/minimal-android-project/gradle/wrapper/gradle-wrapper.properties to gradle-2.2-all.zip

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 0.962 secs

I'm not sure that creating wrapper should work with this minimal project, so this is rather a question than a bug report. I was just hoping to create a minimal-android-project-with-gradle-wrapper and would appreciate any help :)