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Android Studio: “new module -> import existing project” vs. “import module”

What I have:

Four independently working Android modules:

  1. MyProjectMainModule, a main container application, attached to MyProject

  2. MyGradleModule, a library, with all necessary components built during gradlew process.

  3. MyPreGradleModule, a library, with src/, res/, AndroidManifest.xml, and pom.xml, without gradle wrapper

  4. MyRawModule, a library, with src/, res/, AndroidManifest.xml, without pom.xml (commonly seen in Ant-based Eclipse projects)

What I'd like to achieve:

To import all three modules (i.e. MyGradleModule, MyPreGradleModule, MyRawModule) into MyProject as dependencies of MyProject. The complete project structure should resemble below project structure:

MyProject
|--MyProjectMainModule
|--MyGradleModule
|--MyPreGradleModule
|--MyRawModule

Question:

Realizing all three modules (MyGradleModule, MyPreGradleModule, and MyRawModule) have different structures, what are the most optimal ways to import each modules with minimal efforts?

Could you please match one of the following Android Studio menu items with each modules in your answer (if you use any):

  1. File -> Import Module...
  2. File -> New Module... -> Import Existing Project
  3. File -> New Module... -> Android Library
like image 329
melvynkim Avatar asked Oct 13 '14 22:10

melvynkim


2 Answers

You can add the three modules to the same project by creating a settings.gradle file in the MyProject/ folder and adding the modules to it:

include ':MyGradleModule'
include ':MyPreGradleModule'
include ':MyRawModule'

Then for each module, configure the build.gradle dependencies to reference the other modules as needed. For example, add this to the MyProjectMainModule to make it use the output produced by MyGradleModule:

dependencies {
  compile project(':MyGradleModule')
}

Finally, if your project has heterogeneous submodules then you can configure their structure using the 'sourceSets' closure. For example, your raw module would have a configuration similar to this:

android {
    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            aidl.srcDirs = ['src']
            renderscript.srcDirs = ['src']
            res.srcDirs = ['res']
            assets.srcDirs = ['assets']
        }
        androidTest.setRoot('tests')
    }
}

Check out this section of the Gradle Plugin Guide to see what configuration options are available.

like image 69
Mike Laren Avatar answered Oct 20 '22 15:10

Mike Laren


This worked out for me:

  1. Open your project in Android Studio
  2. Download the library (using Git, or a zip archive to unzip)
  3. Go to File > Import Module and import the library as a module
  4. Go to File > Project Structure > Modules
  5. Locate your main project module, click on it. It should have a few android libraries, such as: support-v4, etc.
  6. Click on the more on the left green "+" button > Module dependency
  7. Select "your Library"
like image 23
Prem kumar adepu Avatar answered Oct 20 '22 16:10

Prem kumar adepu