所以如果你想通过编程复制google的服务。Json文件从你的所有变体到你的根文件夹。当你切换到特定的变体时，这里有一个解决方案

android {
  applicationVariants.all { variant ->
    copy {
        println "Switches to $variant google-services.json"
        from "src/$variant"
        include "google-services.json"
        into "."
    }
  }
}

这种方法有一个警告，那就是你需要有谷歌服务。Json文件在你的每个变体文件夹这里是一个例子。

放置你的“谷歌服务”。Json”文件分别在app/src/flavors下 然后是构建。Gradle的应用程序，在android下添加以下代码

gradle.taskGraph.beforeTask { Task task ->
        if (task.name ==~ /process.*GoogleServices/) {
            android.applicationVariants.all { variant ->
                if (task.name ==~ /(?i)process${variant.name}GoogleServices/) {
                    copy {
                        from "/src/${variant.flavorName}"
                        into '.'
                        include 'google-services.json'
                    }
                }
            }
        }
    }

我们对调试构建有不同的包名(*.debug)，所以我想要一些基于flavor和buildType的东西，而不必在processDebugFlavorGoogleServices的模式中编写任何与flavor相关的东西。

我在每个版本中创建了一个名为“google-services”的文件夹，包含了json文件的调试版本和发布版本:

在gradle文件的buildTypes部分，添加以下内容:

    applicationVariants.all { variant ->
            def buildTypeName = variant.buildType.name
            def flavorName = variant.productFlavors[0].name;

            def googleServicesJson = 'google-services.json'
            def originalPath = "src/$flavorName/google-services/$buildTypeName/$googleServicesJson"
            def destPath = "."

            copy {
                if (flavorName.equals(getCurrentFlavor()) && buildTypeName.equals(getCurrentBuildType())) {
                    println originalPath
                    from originalPath
                    println destPath
                    into destPath
                }
            }
    }

当你切换构建变量时，它会自动在你的应用模块的根处复制正确的json文件。

在build.gradle的根中添加这两个被调用的方法，以获取当前风格和当前构建类型

def getCurrentFlavor() {
    Gradle gradle = getGradle()
    String  tskReqStr = gradle.getStartParameter().getTaskRequests().toString()

    Pattern pattern;

    if( tskReqStr.contains( "assemble" ) )
        pattern = Pattern.compile("assemble(\\w+)(Release|Debug)")
    else
        pattern = Pattern.compile("generate(\\w+)(Release|Debug)")

    Matcher matcher = pattern.matcher( tskReqStr )

    if( matcher.find() ) {
        println matcher.group(1).toLowerCase()
        return matcher.group(1).toLowerCase()
    }
    else
    {
        println "NO MATCH FOUND"
        return "";
    }
}

def getCurrentBuildType() {
    Gradle gradle = getGradle()
    String  tskReqStr = gradle.getStartParameter().getTaskRequests().toString()

        if (tskReqStr.contains("Release")) {
            println "getCurrentBuildType release"
            return "release"
        }
        else if (tskReqStr.contains("Debug")) {
            println "getCurrentBuildType debug"
            return "debug"
        }

    println "NO MATCH FOUND"
    return "";
}

就是这样，你不必担心从你的gradle文件中删除/添加/修改口味，它得到调试或发布谷歌服务。自动json。

简短的回答:

实现: 默认情况下，您应该复制google-services。Json到app dir。

如果想要获得其他效果，可以复制谷歌的服务。Json到app/src/{flavor-name}目录

测试: 尝试构建，打开构建选项卡，然后使用解析json文件检查输出消息:.....

    ...
    gradle.taskGraph.beforeTask { Task task ->
        if (task.name ==~ /process.*GoogleServices/) {
            android.applicationVariants.all { variant ->
                if (task.name ==~ /(?i)process${variant.flavorName}(Debug|Release)GoogleServices/) {
                    copy {
                        from "src/tenants/${variant.flavorName}"
                        include 'google-services.json'
                        into '.'
                    }
                }
            }
        }
    }

    gradle.taskGraph.afterTask { Task task ->
        if (task.name ==~ /process.*GoogleServices/) {
            android.applicationVariants.all { variant ->
                if (task.name ==~ /(?i)process${variant.flavorName}(Debug|Release)GoogleServices/) {
                    delete fileTree(".").matching {
                        include 'google-services.json'
                    }
                }
            }
        }
    }

remove the existing google-services.json from your project. Build > Clean Project compile and run your app look at the error message that comes up to figure out where you can put your google-services.json..mine looked like this File google-services.json is missing. The Google Services Plugin cannot function without it. Searched Location: C:\Users\username\Desktop\HelloWorld\app\src\devSuffixYes_EnvQaApistaging_\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\debug\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\devSuffixYes_EnvQaApistaging_Debug\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\devDebug\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\devSuffixYes_EnvQaApistaging_\debug\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\debug\devSuffixYes_EnvQaApistaging_\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\debug\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\suffix\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\suffixDebug\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\suffix\debug\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\suffix\yes_\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\suffix\yes_Debug\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\suffix\yes_\debug\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\suffix\yes_\env\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\suffix\yes_\envDebug\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\suffix\yes_\env\debug\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\suffix\yes_\env\qa\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\suffix\yes_\env\qaDebug\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\suffix\yes_\env\qa\debug\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\suffix\yes_\env\qa\apistaging_\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\suffix\yes_\env\qa\apistaging_Debug\google-services.json C:\Users\username\Desktop\HelloWorld\app\src\dev\suffix\yes_\env\qa\apistaging_\debug\google-services.json C:\Users\username\Desktop\HelloWorld\app\google-services.json

注意:它还关心flavorDimensions中声明的顺序。我的是flavorDimensions“dev_suffix”，“environment”