buildConfigField 取决于风味 buildType

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buildConfigField depending on flavor + buildType

我正在尝试根据风味 buildType 定义一个 buildConfigVariable。理想情况下，这就是我想要的

productFlavors {

  strawberry {

    buildConfigField"String","WS_API_KEY", name + variant.buildType.name

  }

  ... more flavors ..

}android.applicationVariants.all { variant ->

  println"****************************"

  println"variant: ${variant.name}"

  println"flavor: ${variant.flavorName}"

  println"****************************"



  if (variant.buildType.name == 'release') {

    if (variant.flavorName == 'strawberry') {

      buildConfigField"String","WS_API_KEY", '"strawberry_release"'

    } else {

      buildConfigField"String","WS_API_KEY", '"chocolate_release"'

    }

  } else if(variant.buildType.name == 'debug') {

    if (variant.flavorName == 'strawberry') {

      buildConfigField"String","WS_API_KEY", '"strawberry_debug"'

    } else {

      buildConfigField"String","WS_API_KEY", '"chocolate_debug"'

    }

  }





****************************

variant: strawberryRelease

flavor: strawberry

****************************

org.gradle.api.internal.MissingMethodException: 

  Could not find method buildConfigField() 

  for arguments [String, WS_API_KEY,"strawberry_release"]applicationVariants.all { variant ->

  variant.buildConfigField"int","VALUE","1"

}applicationVariants.all { variant ->

  variant.buildConfigField"String","WS_API_KEY", variant.productFlavors.get(0).name + '_' + variant.buildType.name

}applicationVariants.all { variant ->

  variant.mergedFlavor.buildConfigField"String","NAME", '"VALUE"'

}final projectName = project.name

gradle.taskGraph.beforeTask { Task task ->

  if (task.path ==~ /:$projectName:generate.*BuildConfig/) {

    //extracts flavor and buildType name. See http://stackoverflow.com/a/7594052/218473 for regex

    final values = task.name.replace("generate","").replace("BuildConfig","").split("(?<!(^|[A-Z]))(?=[A-Z])|(?<!^)(?=[A-Z][a-z])")



    final flavorName = values[0].toLowerCase()

    final buildTypeName = values[1].toLowerCase()



    com.android.build.gradle.api.ApplicationVariant variant;

    android.applicationVariants.all { currentVariant ->

      if (currentVariant.getVariantData().getVariantConfiguration().getBuildType().getName() == buildTypeName) {

        if (currentVariant.getVariantData().getVariantConfiguration().getFlavorName() == flavorName) {

          variant = currentVariant;

        }

      }

    }



    if(variant != null) {

      com.android.builder.internal.ClassFieldImpl apiKeyField

      if (flavorName == 'strawberry') {  

        if (buildTypeName == 'release') {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"strawberry_release"')

        } else {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"strawberry_debug"')

        }

      } else if (flavorName == 'chocolate') {            

        if (buildTypeName == 'release') {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"chocolate_release"')

        } else {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"chocolate_debug"')

        }

      }



      variant.getVariantData().getVariantConfiguration().getFlavorConfigs().get(0).addBuildConfigField(apiKeyField)

    }

  }

}

name 确实包含"strawberry"，但我不知道是否可以访问该变体的 buildType。

放置在 Android 闭包之外，我确实可以访问 BuildType 和变体，但是我不能调用 buildConfigField

productFlavors {

  strawberry {

    buildConfigField"String","WS_API_KEY", name + variant.buildType.name

  }

  ... more flavors ..

}android.applicationVariants.all { variant ->

  println"****************************"

  println"variant: ${variant.name}"

  println"flavor: ${variant.flavorName}"

  println"****************************"



  if (variant.buildType.name == 'release') {

    if (variant.flavorName == 'strawberry') {

      buildConfigField"String","WS_API_KEY", '"strawberry_release"'

    } else {

      buildConfigField"String","WS_API_KEY", '"chocolate_release"'

    }

  } else if(variant.buildType.name == 'debug') {

    if (variant.flavorName == 'strawberry') {

      buildConfigField"String","WS_API_KEY", '"strawberry_debug"'

    } else {

      buildConfigField"String","WS_API_KEY", '"chocolate_debug"'

    }

  }





****************************

variant: strawberryRelease

flavor: strawberry

****************************

org.gradle.api.internal.MissingMethodException: 

  Could not find method buildConfigField() 

  for arguments [String, WS_API_KEY,"strawberry_release"]applicationVariants.all { variant ->

  variant.buildConfigField"int","VALUE","1"

}applicationVariants.all { variant ->

  variant.buildConfigField"String","WS_API_KEY", variant.productFlavors.get(0).name + '_' + variant.buildType.name

}applicationVariants.all { variant ->

  variant.mergedFlavor.buildConfigField"String","NAME", '"VALUE"'

}final projectName = project.name

gradle.taskGraph.beforeTask { Task task ->

  if (task.path ==~ /:$projectName:generate.*BuildConfig/) {

    //extracts flavor and buildType name. See http://stackoverflow.com/a/7594052/218473 for regex

    final values = task.name.replace("generate","").replace("BuildConfig","").split("(?<!(^|[A-Z]))(?=[A-Z])|(?<!^)(?=[A-Z][a-z])")



    final flavorName = values[0].toLowerCase()

    final buildTypeName = values[1].toLowerCase()



    com.android.build.gradle.api.ApplicationVariant variant;

    android.applicationVariants.all { currentVariant ->

      if (currentVariant.getVariantData().getVariantConfiguration().getBuildType().getName() == buildTypeName) {

        if (currentVariant.getVariantData().getVariantConfiguration().getFlavorName() == flavorName) {

          variant = currentVariant;

        }

      }

    }



    if(variant != null) {

      com.android.builder.internal.ClassFieldImpl apiKeyField

      if (flavorName == 'strawberry') {  

        if (buildTypeName == 'release') {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"strawberry_release"')

        } else {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"strawberry_debug"')

        }

      } else if (flavorName == 'chocolate') {            

        if (buildTypeName == 'release') {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"chocolate_release"')

        } else {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"chocolate_debug"')

        }

      }



      variant.getVariantData().getVariantConfiguration().getFlavorConfigs().get(0).addBuildConfigField(apiKeyField)

    }

  }

}

我可以轻松创建 Java 工厂并根据一些 BuildConfig 常量返回适当的 API_KEY，但我宁愿保持代码配置不可知。

Edit2：0.14.2 之后的版本将允许这样做：

productFlavors {

  strawberry {

    buildConfigField"String","WS_API_KEY", name + variant.buildType.name

  }

  ... more flavors ..

}android.applicationVariants.all { variant ->

  println"****************************"

  println"variant: ${variant.name}"

  println"flavor: ${variant.flavorName}"

  println"****************************"



  if (variant.buildType.name == 'release') {

    if (variant.flavorName == 'strawberry') {

      buildConfigField"String","WS_API_KEY", '"strawberry_release"'

    } else {

      buildConfigField"String","WS_API_KEY", '"chocolate_release"'

    }

  } else if(variant.buildType.name == 'debug') {

    if (variant.flavorName == 'strawberry') {

      buildConfigField"String","WS_API_KEY", '"strawberry_debug"'

    } else {

      buildConfigField"String","WS_API_KEY", '"chocolate_debug"'

    }

  }





****************************

variant: strawberryRelease

flavor: strawberry

****************************

org.gradle.api.internal.MissingMethodException: 

  Could not find method buildConfigField() 

  for arguments [String, WS_API_KEY,"strawberry_release"]applicationVariants.all { variant ->

  variant.buildConfigField"int","VALUE","1"

}applicationVariants.all { variant ->

  variant.buildConfigField"String","WS_API_KEY", variant.productFlavors.get(0).name + '_' + variant.buildType.name

}applicationVariants.all { variant ->

  variant.mergedFlavor.buildConfigField"String","NAME", '"VALUE"'

}final projectName = project.name

gradle.taskGraph.beforeTask { Task task ->

  if (task.path ==~ /:$projectName:generate.*BuildConfig/) {

    //extracts flavor and buildType name. See http://stackoverflow.com/a/7594052/218473 for regex

    final values = task.name.replace("generate","").replace("BuildConfig","").split("(?<!(^|[A-Z]))(?=[A-Z])|(?<!^)(?=[A-Z][a-z])")



    final flavorName = values[0].toLowerCase()

    final buildTypeName = values[1].toLowerCase()



    com.android.build.gradle.api.ApplicationVariant variant;

    android.applicationVariants.all { currentVariant ->

      if (currentVariant.getVariantData().getVariantConfiguration().getBuildType().getName() == buildTypeName) {

        if (currentVariant.getVariantData().getVariantConfiguration().getFlavorName() == flavorName) {

          variant = currentVariant;

        }

      }

    }



    if(variant != null) {

      com.android.builder.internal.ClassFieldImpl apiKeyField

      if (flavorName == 'strawberry') {  

        if (buildTypeName == 'release') {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"strawberry_release"')

        } else {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"strawberry_debug"')

        }

      } else if (flavorName == 'chocolate') {            

        if (buildTypeName == 'release') {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"chocolate_release"')

        } else {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"chocolate_debug"')

        }

      }



      variant.getVariantData().getVariantConfiguration().getFlavorConfigs().get(0).addBuildConfigField(apiKeyField)

    }

  }

}

所以你可以做这样的事情(以匹配原始问题)：

productFlavors {

  strawberry {

    buildConfigField"String","WS_API_KEY", name + variant.buildType.name

  }

  ... more flavors ..

}android.applicationVariants.all { variant ->

  println"****************************"

  println"variant: ${variant.name}"

  println"flavor: ${variant.flavorName}"

  println"****************************"



  if (variant.buildType.name == 'release') {

    if (variant.flavorName == 'strawberry') {

      buildConfigField"String","WS_API_KEY", '"strawberry_release"'

    } else {

      buildConfigField"String","WS_API_KEY", '"chocolate_release"'

    }

  } else if(variant.buildType.name == 'debug') {

    if (variant.flavorName == 'strawberry') {

      buildConfigField"String","WS_API_KEY", '"strawberry_debug"'

    } else {

      buildConfigField"String","WS_API_KEY", '"chocolate_debug"'

    }

  }





****************************

variant: strawberryRelease

flavor: strawberry

****************************

org.gradle.api.internal.MissingMethodException: 

  Could not find method buildConfigField() 

  for arguments [String, WS_API_KEY,"strawberry_release"]applicationVariants.all { variant ->

  variant.buildConfigField"int","VALUE","1"

}applicationVariants.all { variant ->

  variant.buildConfigField"String","WS_API_KEY", variant.productFlavors.get(0).name + '_' + variant.buildType.name

}applicationVariants.all { variant ->

  variant.mergedFlavor.buildConfigField"String","NAME", '"VALUE"'

}final projectName = project.name

gradle.taskGraph.beforeTask { Task task ->

  if (task.path ==~ /:$projectName:generate.*BuildConfig/) {

    //extracts flavor and buildType name. See http://stackoverflow.com/a/7594052/218473 for regex

    final values = task.name.replace("generate","").replace("BuildConfig","").split("(?<!(^|[A-Z]))(?=[A-Z])|(?<!^)(?=[A-Z][a-z])")



    final flavorName = values[0].toLowerCase()

    final buildTypeName = values[1].toLowerCase()



    com.android.build.gradle.api.ApplicationVariant variant;

    android.applicationVariants.all { currentVariant ->

      if (currentVariant.getVariantData().getVariantConfiguration().getBuildType().getName() == buildTypeName) {

        if (currentVariant.getVariantData().getVariantConfiguration().getFlavorName() == flavorName) {

          variant = currentVariant;

        }

      }

    }



    if(variant != null) {

      com.android.builder.internal.ClassFieldImpl apiKeyField

      if (flavorName == 'strawberry') {  

        if (buildTypeName == 'release') {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"strawberry_release"')

        } else {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"strawberry_debug"')

        }

      } else if (flavorName == 'chocolate') {            

        if (buildTypeName == 'release') {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"chocolate_release"')

        } else {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"chocolate_debug"')

        }

      }



      variant.getVariantData().getVariantConfiguration().getFlavorConfigs().get(0).addBuildConfigField(apiKeyField)

    }

  }

}

编辑：目前不可能。缺少此 API。

错误：https://code.google.com/p/android/issues/detail?id=67416

试试这个：

productFlavors {

  strawberry {

    buildConfigField"String","WS_API_KEY", name + variant.buildType.name

  }

  ... more flavors ..

}android.applicationVariants.all { variant ->

  println"****************************"

  println"variant: ${variant.name}"

  println"flavor: ${variant.flavorName}"

  println"****************************"



  if (variant.buildType.name == 'release') {

    if (variant.flavorName == 'strawberry') {

      buildConfigField"String","WS_API_KEY", '"strawberry_release"'

    } else {

      buildConfigField"String","WS_API_KEY", '"chocolate_release"'

    }

  } else if(variant.buildType.name == 'debug') {

    if (variant.flavorName == 'strawberry') {

      buildConfigField"String","WS_API_KEY", '"strawberry_debug"'

    } else {

      buildConfigField"String","WS_API_KEY", '"chocolate_debug"'

    }

  }





****************************

variant: strawberryRelease

flavor: strawberry

****************************

org.gradle.api.internal.MissingMethodException: 

  Could not find method buildConfigField() 

  for arguments [String, WS_API_KEY,"strawberry_release"]applicationVariants.all { variant ->

  variant.buildConfigField"int","VALUE","1"

}applicationVariants.all { variant ->

  variant.buildConfigField"String","WS_API_KEY", variant.productFlavors.get(0).name + '_' + variant.buildType.name

}applicationVariants.all { variant ->

  variant.mergedFlavor.buildConfigField"String","NAME", '"VALUE"'

}final projectName = project.name

gradle.taskGraph.beforeTask { Task task ->

  if (task.path ==~ /:$projectName:generate.*BuildConfig/) {

    //extracts flavor and buildType name. See http://stackoverflow.com/a/7594052/218473 for regex

    final values = task.name.replace("generate","").replace("BuildConfig","").split("(?<!(^|[A-Z]))(?=[A-Z])|(?<!^)(?=[A-Z][a-z])")



    final flavorName = values[0].toLowerCase()

    final buildTypeName = values[1].toLowerCase()



    com.android.build.gradle.api.ApplicationVariant variant;

    android.applicationVariants.all { currentVariant ->

      if (currentVariant.getVariantData().getVariantConfiguration().getBuildType().getName() == buildTypeName) {

        if (currentVariant.getVariantData().getVariantConfiguration().getFlavorName() == flavorName) {

          variant = currentVariant;

        }

      }

    }



    if(variant != null) {

      com.android.builder.internal.ClassFieldImpl apiKeyField

      if (flavorName == 'strawberry') {  

        if (buildTypeName == 'release') {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"strawberry_release"')

        } else {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"strawberry_debug"')

        }

      } else if (flavorName == 'chocolate') {            

        if (buildTypeName == 'release') {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"chocolate_release"')

        } else {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"chocolate_debug"')

        }

      }



      variant.getVariantData().getVariantConfiguration().getFlavorConfigs().get(0).addBuildConfigField(apiKeyField)

    }

  }

}

警告：这可能是一个脆弱的解决方案，使用风险自负。请参阅 https://code.google.com/p/android/issues/detail?id=67416

我就是这样完成了我想要的。您需要在任务执行之前更改值，所以我需要一种方法将我的代码挂在那里。

productFlavors {

  strawberry {

    buildConfigField"String","WS_API_KEY", name + variant.buildType.name

  }

  ... more flavors ..

}android.applicationVariants.all { variant ->

  println"****************************"

  println"variant: ${variant.name}"

  println"flavor: ${variant.flavorName}"

  println"****************************"



  if (variant.buildType.name == 'release') {

    if (variant.flavorName == 'strawberry') {

      buildConfigField"String","WS_API_KEY", '"strawberry_release"'

    } else {

      buildConfigField"String","WS_API_KEY", '"chocolate_release"'

    }

  } else if(variant.buildType.name == 'debug') {

    if (variant.flavorName == 'strawberry') {

      buildConfigField"String","WS_API_KEY", '"strawberry_debug"'

    } else {

      buildConfigField"String","WS_API_KEY", '"chocolate_debug"'

    }

  }





****************************

variant: strawberryRelease

flavor: strawberry

****************************

org.gradle.api.internal.MissingMethodException: 

  Could not find method buildConfigField() 

  for arguments [String, WS_API_KEY,"strawberry_release"]applicationVariants.all { variant ->

  variant.buildConfigField"int","VALUE","1"

}applicationVariants.all { variant ->

  variant.buildConfigField"String","WS_API_KEY", variant.productFlavors.get(0).name + '_' + variant.buildType.name

}applicationVariants.all { variant ->

  variant.mergedFlavor.buildConfigField"String","NAME", '"VALUE"'

}final projectName = project.name

gradle.taskGraph.beforeTask { Task task ->

  if (task.path ==~ /:$projectName:generate.*BuildConfig/) {

    //extracts flavor and buildType name. See http://stackoverflow.com/a/7594052/218473 for regex

    final values = task.name.replace("generate","").replace("BuildConfig","").split("(?<!(^|[A-Z]))(?=[A-Z])|(?<!^)(?=[A-Z][a-z])")



    final flavorName = values[0].toLowerCase()

    final buildTypeName = values[1].toLowerCase()



    com.android.build.gradle.api.ApplicationVariant variant;

    android.applicationVariants.all { currentVariant ->

      if (currentVariant.getVariantData().getVariantConfiguration().getBuildType().getName() == buildTypeName) {

        if (currentVariant.getVariantData().getVariantConfiguration().getFlavorName() == flavorName) {

          variant = currentVariant;

        }

      }

    }



    if(variant != null) {

      com.android.builder.internal.ClassFieldImpl apiKeyField

      if (flavorName == 'strawberry') {  

        if (buildTypeName == 'release') {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"strawberry_release"')

        } else {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"strawberry_debug"')

        }

      } else if (flavorName == 'chocolate') {            

        if (buildTypeName == 'release') {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"chocolate_release"')

        } else {

          apiKeyField = new com.android.builder.internal.ClassFieldImpl("String","WS_API_KEY", '"chocolate_debug"')

        }

      }



      variant.getVariantData().getVariantConfiguration().getFlavorConfigs().get(0).addBuildConfigField(apiKeyField)

    }

  }

}

要了解其工作原理，请下载 AOSP 源代码并检查 VariantConfiguration.getBuildConfigItems()

使用 Xavier 的答案会引发 MethodMissingError。如果我使用 variant.mergedFlavor.addBuildConfigField() 没有错误，但没有添加变量。

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