关键code

  android.applicationVariants.all { variant ->
                variant.outputs.all {
                    outputFileName = "App-Name-${variant.versionName}-${defaultConfig.versionCode}.apk"
                }
            }

贴出完整code

 buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

            android.applicationVariants.all { variant ->
                variant.outputs.all {
                    outputFileName = "App-Name-${variant.versionName}-${defaultConfig.versionCode}.apk"
                }
            }
        }
    }

如需其它标注例如：打包时间戳 可自定义