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gradle-android-appiconoverlay

Plugin for Android Gradle to automatically overlay the app icon with information about the current build: git branch name and commit SHA1.

Example

Usage

1. This plugin is published on JCenter. Add dependency in your Android project's top-level build.gradle file:

   buildscript {
       dependencies {
           classpath 'com.github.splatte:gradle-android-appiconoverlay:2.0'
       }
   }

2. Apply the plugin in your app module's build.gradle file:

   apply plugin: 'app-icon-overlay'
   appiconoverlay {
       /* then see below for configuration options */
   }
   
   android {
       /* project config */
   }

3. For those using Gradle 3.+ disable aapt2 in your app module's gradle.properties file:

   android.enableAapt2=false

4. You will need convert from the ImageMagick project to do the image processing. You can install it using a command along the lines of:

   # debian/ubuntu
   sudo apt-get install imagemagick
   
   # osx
   sudo port install imagemagick
   sudo brew install imagemagick
   
   # required on osx otherwise imagemagick (silently) goes into an infinite loop complaining about missing fonts
   sudo brew install ghostscript

The plugin will hook into your build process automatically and overwrite the target app icon files for debug builds. It will not mess with any files in your repository.

Customization

The plugin offers some options for customizing the appearance of the generated icon. Simply add a block to your app module's build.gradle:

appiconoverlay {
    textColor '#FFF'                  /* #rrggbbaa format */
    backgroundColor "#0008"           /* #rrggbbaa format */
    format '$build->$branch\n$commit' /* GString */
    imageMagick 'convert'             /* command to run ImageMagick */
}

Building locally

If you want to make changes to the plugin, here's how you can build it locally and test it with an Android app:

1. Check out the project using git.
2. In the root directory, run gradle jar.
3. Find the generated .jar file in ./build/libs/.
4. To reference your local .jar file in your Android project, declare the dependency as follows in the project's top-level build.gradle file:

   buildscript {
       dependencies {
           classpath files('/path/to/gradle-android-appiconoverlay/build/libs/gradle-android-appiconoverlay-2.0.jar')
       }
   }

Credits

Idea based on the IconOverlaying project by Krzysztof Zabłocki, which implements a similar feature for iOS builds.