这几天抽空研究下Android SDK 自动化打包。顺便温习下Unity 与 Android 交互机制。

一、Unity 与 Android 的 消息传递机制

　　Example:

　　导出 Android Project

　　这里为了测试，就填了包名能导出就行了

　　Eclipse 导入之后 在 最开始启动的Activity 上加上一个被 u3d 代码调用的函数 即可

1     public void BeCalledFromUnity(String arg)
2     {
3         UnityPlayer.UnitySendMessage("SDK", "BeCalledFromAndroid", arg);
4     }

　　OK

　　消息通信搞定了

二、配置 Ant 环境

Step:

　　Download Ant. Uncompress the downloaded file into a directory.
　　Set environmental variables JAVA_HOME to your Java environment,
　　ANT_HOME to the directory you uncompressed Ant to, and add${ANT_HOME}/bin (Unix) or %ANT_HOME%/bin (Windows) to your PATH.

Check Installation:

　   You can check the basic installation with opening a new shell and typing ant. You should get a message like this

　　　　 Buildfile: build.xml does not exist!
　　　　 Build failed

　　So Ant works. This message is there because you need to write an individual buildfile for your project. With a ant -versionyou should get an output like

　　　　Apache Ant(TM) version 1.9.2 compiled on July 8 2013

三、With Android Project

　　 参考：http://www.androidengineer.com/2010/06/using-ant-to-automate-building-android.html (目前我用的是1.9.4 有一点出入)

      If you already have a project that you‘d like to add the Ant build script to, then there is an easy command line tool you can use.

　　Open up a command prompt and navigate to the base directory of your project. 

　　From there, use the command:

　　　　android update project --path .

　　(PS:

　　 Add Path If Fail

　　　　%ANDROID_SDK%\platform-tools
　　　　%ANDROID_SDK%\tools

　　)

　　Here is an example of successful output:

　  其中ant.properties 是 手工添加的,为了自动化打包签名

　 Open up a command prompt and navigate to the base directory of your project.
　 From there, use the command:
　　　　　　-> ant release 

　　　　　　=> 打包成功 　　

 
 
  
 
 目前我们已经构建了发布版本的签名APK，下一篇我会讲讲自定义build.xml 流程