Unable to get additional Java source directories to work with Gradle Experimental plugin

[Pol]

Hi,

Using Android Studio 2.1.1 with Experimental Grade plugin 0.7.2, I'm trying to add another Java source code directory to the module. Here's the relevant section from the module Gradle settings:

android.sources {

    main {

        java.source {

            srcDirs += "../../JavaBindings/java"  <--- DOES NOT WORK

        }

        jni.source {

            srcDirs += "../../JavaBindings/jni"  <--- THIS WORKS

        }

    }

}

After looking around on Google and Stack Overflow, I tried a number of different syntaxes, but no luck. The "app/java" directory in the Android Studio project structure UI only shows what's in "../../JavaBindings/java" and now ignores what's in "src/java".

However for the "app/jni" directory in the UI, it works: both what's in "src/jni" and "../../JavaBindings/jni" shows up.

- Pol

[Raymond Chiu]

Hi Pol,

Could you file a bug as b.android.com?  Thanks.

Raymond

[Pol]

Hi Raymond,

For the record, after looking at the source code for the Gradle Experimental plug-in, I eventually figured it out:

java.source.srcDirs and jni.source.srcDirs do not behave the same: for the JNI case, even if you define the jni.source.srcDirs setting, src/main/jni is always included by default, but that's not the case for the Java case.

So the correct syntax becomes:

android.sources {

    main {

        java.source {

            srcDirs += "src/main/java"   <------- REQUIRED SINCE DEFAULT IS NOT PRESERVED

            srcDirs += "../../JavaBindings/java"

        }

        jni.source {

            srcDirs += "../../JavaBindings/jni"

        }

    }

}

- Pol

[Raymond Chiu]

I filed https://code.google.com/p/android/issues/detail?id=213173 to keep track.  Thanks for the detailed information!