android studio gradle 把第三方jar打包进SDK里

比如：qrcode_zxing_core-3.4.1.jar  打包进SDK里。

task buildJar(type: Jar){
    archiveName(OUTPUT_NAME)
    from (project.zipTree(JAR_PATH + "/"+ JAR_NAME))
    from (project.zipTree("libs/FF_BT.jar"))

    from (project.zipTree("libs/qrcode_zxing_core-3.4.1.jar"))

    destinationDir file(OUTPUT_PATH)
    include("com/ftsafe/epaypos/sdk*.class")
    include("com/ftsafe/bluetooth*.class")

    include("com/google/zxing*.class")
}

两步

    //jar
    from (project.zipTree("libs/qrcode_zxing_core-3.4.1.jar"))


    //所有class，不要漏
    include("com/google/zxing*.class")