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POIs it possible to use Scala jar library in _Android_ Java project?
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  1. POIs it possible to use Scala jar library in _Android_ Java project?
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    copied!<p>Any "Use Scala on Android" tutorials I find only show to make a simple "Hello World" app. Has anyone actually succeeded in using a Scala library jar in a real life Android app?</p> <p>I tried to use goose library (<a href="https://github.com/GravityLabs/goose/" rel="nofollow">https://github.com/GravityLabs/goose/</a>) in my Android project. I built goose-2.1.22.jar from the sources fine. Inserted it into libs directory of my Android project, and added some code to test what will happen:</p> <pre><code>String url = "http://www.cnn.com/2010/POLITICS/08/13/democrats.social.security/index.html"; Configuration cfg = new Configuration(); Goose goose = new Goose(cfg); com.gravity.goose.Article article = goose.extractContent(url); String s = article.cleanedArticleText().toString(); </code></pre> <p>The project compiled fine, no complains. When I try to run it though, I get an exception:</p> <pre><code>java.lang.NoClassDefFoundError: com.gravity.goose.Configuration </code></pre> <p>A little bit better after adding scala-for-android.jar to libs form "Scala for Android" project, or scala-library.jar from the latest stable Scala - then I get:</p> <pre><code> java.lang.ExceptionInInitializerError at com.gravity.goose.Configuration.&lt;init&gt;(Configuration.scala:77) at com.hyperionics.ScalaTest.TestActivity$1.onClick(TestActivity.java:31) </code></pre> <p>Is there some trick to make it work?</p> <hr> <p><strong>More information:</strong> the crash is in Configuration.scala file of goose, on exactly this line:</p> <pre><code>var contentExtractor: ContentExtractor = StandardContentExtractor </code></pre> <p>I added <em>all</em> the jars from Scala distribution lib directory to my project after a period of testing, but there is no difference, same crash. Also found "Scala for Android" project at <a href="http://code.google.com/p/scalaforandroid/" rel="nofollow">http://code.google.com/p/scalaforandroid/</a> and added it's jars instead of the ones from standard Scala distro, no difference. To compile my project and go around the error "Android Dex: Too meny methods ..." I had to use DexGuard, as with Proguard again I was getting weird errors.</p> <p>Any more tips on how to make this work would be much appreciated!</p>
 

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