java - Require Gradle project from another directory

Question

I have a directory/project setup like this:

C:
    _dev
        Projects
            Logger
            MyProject

Logger is an Android library project using Gradle. MyProject is a standard Android project project that needs to make use of the Logger library.

I am using Android Studio and have tried adding Logger to the external libraries. Whilst this works during development, I get messages about the class not being found when building.

I'm completely new to Gradle, but have tried the following in my build.gradle within MyProject:

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.5.+'
    }
}
apply plugin: 'android'

repositories {
    mavenCentral()
}

android {
    compileSdkVersion 18
    buildToolsVersion "18.1.0"

    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 18
    }

    dependencies {
        compile files("../Logger")
    }
}

dependencies {
    compile 'com.android.support:gridlayout-v7:18.0.0'
    compile 'com.android.support:appcompat-v7:18.0.0'
}

Answer 1

The simplest way is to make MyProject a multi project with the Logger project as a subproject.

settings.gradle in MyProject directory:

include ":logger"
project(":logger").projectDir = file("../logger")

In the build.gradle of MyProject you can now reference this lib as a project:

dependencies {
     compile 'com.android.support:gridlayout-v7:18.0.0'
     compile 'com.android.support:appcompat-v7:18.0.0'
     compile project(":logger")
}