README.md

libGDX with dagger 2 sample project

This is a modified stock libGDX project that uses Dagger 2.

Things that has been modified comparing to stock libGDX project:

1. Dagger 2 dependency has been introduced in build.gradle:

• apt plugin has been added to build classpath - this is needed to be able to avoid including dagger-compiler dependency as compile, thus, packaging dagger-compiler into the game.

  buildscript {
    ...
    dependencies {
      ...
      classpath "net.ltgt.gradle:gradle-apt-plugin:0.4"
    }
  }
  

• Declaring dagger2 dependencies for core subproject:

  ext {
    ...
    daggerVersion = '2.0.2'
  }
  
  project(":core") {
    apply plugin: "java"
    apply plugin: "net.ltgt.apt"
  
    dependencies {
        ...
        compile "com.google.dagger:dagger:$daggerVersion"
        apt "com.google.dagger:dagger-compiler:$daggerVersion"
    }
  }
  

2. dagger GWT module has been added into html/src/dagger/Dagger.gwt.xml. Also, in order for GWT to work, sources for dagger core and javax.inject packages has been re-packaged under html/src/dagger/emu directory and declared in the GWT module:

   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE module PUBLIC "-//Google Inc.//DTD Google Web Toolkit trunk//EN"     "http://google-web-toolkit.googlecode.com/svn/trunk/distro-source/core/src/gwt-module.dtd">
   <module>
       <source path="" />
       <super-source path="emu"/>
   </module>
   

I also need to inherit from this module in core/src/MyGame.gwt.xml.

3. html module has been modified to add path to generated dagger sources:

   gwt {
       ...
       src = files(file("src/")) // Needs to be in front of "modules" below.
       src += files(new File(project(":core").projectDir, "/build/generated/source/apt/main"))
   }
   

4. In order to run desktop I had to remove standard Application configuration in IntelliJ and add Gradle configuration:

   

   This is needed in order for IntelliJ to generate dagger sources on running desktop. On the very first run it feels very slow, but once gradle daemon warms up it makes little to no difference with traditional Application launcher configuration. It also supports hot swap.

That's pretty much it. I have tested this configuration on desktop, ios, android, html (both superDev and dist). If you're aware of a better way of incorporating dagger 2, let me know.