Whether it is possible to have a common Java library module depends on the Android SDK in Android studio

In my multi - module Android studio project, I want to create a normal Java module But in this module, I also want to be able to use some Android APIs Is that possible? If so, build What about gradle?

Xie Xie Jia

Solution

As long as the Android function you need is in jar instead of AAR, you should be able to do this quite easily, because my team has several such artifacts For Android jar artifacts in Maven central, you only need to add dependencies:

compile 'com.google.android:android:4.1.1.4'

If this function is in one of the artifacts installed through the Android SDK manager, you can add dependencies as above, but you need to add a local Android repo to extract the artifacts:

maven { url "file:///${System.env.ANDROID_HOME}/extras/android/m2repository" }

edit

Also forget to mention that you need to tag the provided Android artifacts so that dependency conflicts do not occur You can do this using the following methods:

configurations {
    provided
    compile.extendsFrom provided
}
dependencies {
    provided('com.google.android:android:4.1.1.2')
}

If you need a sample build Gradle, please tell me I'll add one

Edit 2

Here's an example build. Exe we used for one of the projects gradle.

apply plugin: 'java'
apply plugin: 'maven'
apply plugin: 'pmd'
apply plugin: 'jacoco'
apply plugin: 'findbugs'
apply plugin: 'project-report'
apply plugin: 'jxr'

group = 'com.example'
archivesBaseName = 'project-name'
version = '1.0.0-SNAPSHOT'
sourceCompatibility = 1.7

configurations {
    provided
    compile.extendsFrom provided
}

buildscript {
    repositories {
        maven { url 'http://repo1.maven.org/maven2/' }
        maven { url "http://jcenter.bintray.com" }
    }

    dependencies {
        classpath('net.davidecavestro:gradle-jxr-plugin:0.1')
    }
}

repositories {
    mavenCentral()
    if (project.hasProperty("mavenLocal")) {
        maven { url "${System.env.HOME}/.m2/repository" }
    }
    maven { url "file:///${System.env.ANDROID_HOME}/extras/android/m2repository" }
}

dependencies {
    compile('com.google.code.findbugs:annotations:2.0.2')
    compile('com.google.code.gson:gson:2.2.4')
    compile('com.google.guava:guava:15.0')
    provided('com.google.android:android:4.0.1.2')
    testCompile('commons-io:commons-io:2.4')
    testCompile('junit:junit:4.11')
    testCompile('org.robolectric:robolectric:2.3')
    testCompile('org.mockito:mockito-all:1.10.8')
}

test {
    dependsOn ':assemble'
    testLogging {
        showExceptions = true
        showStackTraces = true
        exceptionFormat = "full"
        events "passed","skipped","Failed"
    }
}

javadoc {
    source = sourceSets.main.allJava
    classpath = test.classpath
}

jacocoTestReport {
    dependsOn test
    description = "Generate Jacoco coverate reports after running tests."
    reports {
        xml.enabled false
        csv.enabled false
        html.destination "${buildDir}/reports/jacoco"
    }
}

pmd.ignoreFailures = true
pmdTest.enabled = false
pmdMain.enabled = true
pmdMain {
    reports {
        xml.enabled = false
        html.enabled = true
    }
}

findbugs.ignoreFailures = true
findbugs.excludeFilter = file('./findbugs-exclude-filter.xml')
findbugsTest.enabled = false
findbugsMain.enabled = true
findbugsMain {
    reports {
        xml.enabled = false
        html.enabled = true
    }
}

task wrapper(type: Wrapper) {
    gradLeversion = '2.1'
    distributionUrl = "http://services.gradle.org/distributions/gradle-${gradLeversion}-all.zip"
}

task sourcesJar(type: Jar) {
    classifier = 'sources'
    from sourceSets.main.allSource
}

task javadocJar(type: Jar) {
    classifier = 'javadoc'
    from "${projectDir}/build/docs"
}

artifacts {
    archives sourcesJar
    archives javadocJar
}

uploadSite.dependsOn(':check')
check.dependsOn('sourcesJar')
check.dependsOn('javadoc')
check.dependsOn('jacocoTestReport')
check.dependsOn('projectReport')
check.dependsOn('jxr')