publish aar to maven by gradle

publishaartomaven.gradle

apply plugin: 'com.android.library'

apply plugin: 'maven'

uploadArchives {
    repositories {
        mavenDeployer {
            //repository(url: "file:///Users/liumeng/Documents/Backup/maven")
            repository(url: "http://localhost:8081/nexus/content/repositories/snapshots") {
                authentication(userName: "admin", password: "admin")
            }
            pom.version = "1.3.6"
            pom.artifactId = "android"
            pom.groupId = "com.example"
        }
    }
}

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

task onlyClassJar(type: Jar) {
    from "${project.buildDir}/intermediates/classes/release/"
}

task androidJavadocs(type: Javadoc) {
    source = android.sourceSets.main.java.srcDirs
}

task javadocJars(type: Jar, dependsOn: androidJavadocs) {
    classifier = 'javadoc'
    from androidJavadocs.destinationDir
}

artifacts {
    archives onlyClassJar
    archives sourcesJar
    archives javadocJar
}