首先肯定是配置gradle，百度一下就知道了，我的是mac下配置的，sudo vim ~/.bash_profile ,然后设置环境变量

GRADE_HOME=/Users/Admin/gradle;
export GRADE_HOME
export PATH=/opt/local/bin:/opt/local/sbin:$PATH:$GRADE_HOME/bin

最后保存，esc先退出，然后：qw!对了编辑的快捷键是i

接下来gradle -version 看是否配置成功

然后就是打开Android studio ，在build.gradle中配置一下如下

//渠道

productFlavors {

    baiduwuxian {

        manifestPlaceholders = [UMENG_CHANNEL_VALUE: "baiduwuxian"]

    }

}

//多渠道打包

productFlavors {

    baiduwuxian {}

    productFlavors.all { flavor ->

        flavor.manifestPlaceholders = [UMENG_CHANNEL_VALUE: name]

    }

}

//签名

signingConfigs {

    release {

        storeFile file('./singer/android.keystore')

        storePassword "android"

        keyAlias "mykey"

        keyPassword "android"

    }

}

lintOptions {

    checkReleaseBuilds false

    // Or, if you prefer, you can continue to check for errors in release builds,

    // but continue the build even when errors are found:

    abortOnError false

}

compileOptions {

    sourceCompatibility JavaVersion.VERSION_1_7

    targetCompatibility JavaVersion.VERSION_1_7

}

OK，然后需要在Terminal中输入命令：gradle clean,然后完成后再输入gradle assembleRelease

OK,大功告成。