External library dependency under Android Studio

Question

I have my Android Studio project structured as follow:

/mysdk
  -manifests
  -java
     -com.xxx.sdk
     -ext-libs
       -com.yyy.lib (not .jar but .java files instead)
  -res
/app
 -manifests
 -java
 -res

I can include com.yyy.lib.* inisde com.xxx.sdk and reference all the methods without any symbol resolution problem in Eclipse project.

But after I transfer my IDE from Eclipse to Android Studio and it tells me it cannot resolve the symbols/methods from com.yyy.lib inside com.xx.sdk (ex: com.xxx.sdk.Activty.java)

How can I fix this dependency problem in Android studio?

Answer 1

That's because Android Studio uses Gradle as its dependency manager, whereas Eclipse uses either Maven or Ant.

You can read more about managing dependencies with Gradle, here .

This answer explains how to add a dependency/library to Gradle in Android Studio.

Answer 2

In your project file browser:

Go to libs folder. and add your library if not present

and then in gradle: add
compile files('libs/your_library')
in dependencies and then Sync Gradle

Answer 3

If you have no strong preference for the location of com.yyy.lib , just moving it into the parent (is it src/main/java ? based on gradle convention) it will probably get picked up.

It appears the IDE is treating src/main/java (or whatever) as a source folder and your package paths aren't matching up with your directory structure

ext-libs.com.yyy.lib instead of com.yyy.lib