Android中的gradle的作用,简述Android中gradle的简单知识

Android Studio 为多渠道执行自定义名称打包命令：

proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

applicationVariants.all { variant ->

variant.outputs.each { output ->

def outputFile = output.outputFile

if (outputFile != null && outputFile.name.endsWith('.apk')) {

// 计划输出apk名称为App_V1.0.0_baidu.apk

def fileName = "App_V${variant.productFlavors.versionName}_${variant.productFlavors.name}.apk"

output.outputFile = new File(outputFile.parent, fileName)

}

}

}

下面是多渠道配置：

android {

productFlavors {

baidu {

applicationId "com.liujc.demo.baidu"

versionCode 1

versionName "1.0.0"

manifestPlaceholders = [UMENG_CHANNEL_VALUE: "baidu",

APP_NAME : "app应用01", //app名称

]

buildConfigField "String", "API_APP_ID", "\"10001\""

}

xiaomi {

versionCode 2

versionName "1.0.1"

applicationId "com.liujc.demo.xiaomi"

manifestPlaceholders = [UMENG_CHANNEL_VALUE: "xiaomi",

APP_NAME : "app应用02", //app名称

]

buildConfigField "String", "API_APP_ID", "\"10002\""

}

}

}

打包成功后你会发现包名为：App_V[1.0.0]_[baidu].apk ，这不是我想要的啊，怎么都多了个中括号呢，修改打包代码：

proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

applicationVariants.all { variant ->

variant.outputs.each { output ->

def outputFile = output.outputFile

if (outputFile != null && outputFile.name.endsWith('.apk')) {

// 计划输出apk名称为App_V1.0.0_baidu.apk

def fileName = "App_V${variant.productFlavors[0].versionName}_${variant.productFlavors[0].name}.apk"

output.outputFile = new File(outputFile.parent, fileName)

}

}

}

再重新打包，成功后发现包名为：App_V1.0.0_baidu.apk OK了。