我想建设使用Scala，而不是常规的Java（或等值我猜）在Android上的应用程序中。这样做值得吗？

I was thinking of building an app on Android with Scala instead of the regular Java (or the equivalent I guess). Is it worth it?

的任何问题和不必要的麻烦？

Any problems and unnecessary headaches?

推荐答案

使用Scala工作应该主要是无痛的，因为DEX编译器只适用于字节code - 而这正是Scala的产生

Working with Scala should be mostly painless, as the dex compiler just works with bytecode - which is exactly what Scala produces.

您最大的问题则是上阶库的依赖，因为DEX希望一切是在一个jar。这是最好的Proguard的（这也将删除未使用的code和给你一个更小的可执行文件，非常适合移动）进行处理。

Your biggest problem then is the dependency on scala-library, as dex expects everything to be in a single Jar. This is best handled with Proguard (which will also remove unused code and give you a smaller executable, ideal for mobile)

目前最好的做法是使用SBT与Android插件;它会照顾一切为您： http://github.com/jberkel/android-plugin

Current best practice is to use SBT with the Android plugin; It'll take care of everything for you: http://github.com/jberkel/android-plugin

如果您的必须的使用Eclipse和谷歌所提供的插件，那么你将有一个非标准的目录结构。我也写过关于如何处理这样的一个文章：http://www.assembla.com/wiki/show/scala-ide/Developing_for_Android

If you must use Eclipse and the plugin supplied by Google, then you're going to have a non-standard directory structure. I also wrote an article on how to deal with this: http://www.assembla.com/wiki/show/scala-ide/Developing_for_Android

但要注意...它需要更多的努力，方法！

But be warned... it takes a lot more effort that way!