build.gradle

apply plugin: 'com.android.library'
apply plugin: 'com.novoda.bintray-release'//添加
android {
    compileSdkVersion 26
    buildToolsVersion "25.0.3"
    defaultConfig {
        minSdkVersion 14
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        vectorDrawables.useSupportLibrary = true

    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    lintOptions {
        abortOnError false
        warning 'InvalidPackage'
    }


}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    provided 'com.android.support:appcompat-v7:26.1.0'
    testCompile 'junit:junit:4.12'
}

//添加
publish {
    userOrg = 'qianwen'//bintray.com用户名
    groupId = 'com.qianwen'//jcenter上的路径
    artifactId = 'update-app'//项目名称
    publishVersion = rootProject.ext.update_app_version//版本号
    desc = 'a library for android version update'
    website = 'https://github.com/WVector/AppUpdate'
}
repositories {
    mavenCentral()
}