Android studio新版本多渠道打包配置

最近公司套壳app比较多功能也都一样只有地址，和app名字还有icon不一样签名文件也是一样的,所以就研究了多渠道打包配置如下：

在app下build.gradle配置因为最新版as中禁用了BuildConfig 所以我们需要手动配置一下
```
android
{
//TODO 其他省略

 buildFeatures {
        buildConfig = true
    }
}
```
定义渠道

    flavorDimensions "channel" // 定义渠道维度
    productFlavors {
        aaaa{
            dimension "channel"
            resValue "string", "app_name", "aaaa"
            buildConfigField "String", "CHANNEL_URL", "\"http:\""
        }
        bbbb{
            dimension "channel"
            resValue "string", "app_name", "bbbb"
            buildConfigField "String", "CHANNEL_URL", "\"http:\""
        }
        cccc{
            dimension "channel"
            resValue "string", "app_name", "cccc"
            buildConfigField "String", "CHANNEL_URL","\"http:\""
        }
        dddd{
            dimension "channel"
            resValue "string", "app_name", "dddd"
            buildConfigField "String", "CHANNEL_URL", "\"http:\""
        }
    }

签名文件配置

    signingConfigs {
        release  {
            keyAlias = 'xxxx.jks'
            keyPassword 'xxxx.jks.jks'
            storePassword 'xxxx.jks.jks'
            storeFile file('../xxxx.jks')
        }

    }

最后引用签名文件