問題描述

我想根據當前的 buildType 在 Android Gradle 項目中動態添加依賴項.我知道我可以在依賴項中指定 buildType:

I want to dynamically add a dependency in an Android Gradle project based on the current buildType. I know I can specify the buildType in the dependency:

compile project(path: ':lib1', configuration: 'debug')

但是如何使用當前的 buildType 來指定我要導入的庫的哪個變體，以便調試或發布版本自動導入庫的調試或發布變體?我想要的是這樣的(其中 currentBuildType 是一個包含當前使用的 buildType 名稱的變量):

But how can I use the current buildType to specify which variant of the library I want to import, so that a debug or release build automatically imports the debug or release variant of the library? What I want is something like this (where currentBuildType is a variable containing the name of the currently used buildType):

compile project(path: ':lib1', configuration: currentBuildType)

我要導入的庫項目設置了publishNonDefault true，所以所有的buildTypes都被發布了.

The library project I want to import has set publishNonDefault true, so all buildTypes are published.

推薦答案

我在 Gradle 的配置階段找不到一個干凈的方法來獲取當前的構建類型.相反，我像這樣分別定義每種構建類型的依賴關系:

I could not find a clean way to get the current build type during the configuration phase of Gradle. Instead I define the dependency for each build type separately like that:

debugCompile project(path: ':lib1', configuration: 'debug')
releaseCompile project(path: ':lib1', configuration: 'release')

如果您有許多構建類型和許多項目依賴項，這可能會變得非常冗長，但可以添加一個函數以使依賴項成為單行.您需要將此添加到您的主要 Gradle 構建文件中:

If you have many build types and many project dependencies this can get very verbose, but it is possible to add a function to make the dependency a one-liner. You need to add this to your main Gradle build file:

subprojects {
    android {
        dependencies.metaClass.allCompile { dependency ->
            buildTypes.each { buildType ->
                "${buildType.name}Compile" project(path: ":${dependency.name}", configuration: buildType.name)
            }
        }
    }
}

然后您可以像這樣在 Gradle 模塊中添加項目依賴項:

Then you can add project dependencies in your Gradle modules like this:

allCompile project(':lib1')

如果您還使用構建風格，則必須調整解決方案.有關該功能的文檔，請參閱此鏈接:http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Library-Publication

If you also use build flavors you would have to adapt the solution. See this link for a documentation of the feature: http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Library-Publication

請注意，Android 團隊正在努力改進此行為:https://code.google.com/p/android/issues/detail?id=52962

Please note that the Android team is working on an improvement for this behaviour: https://code.google.com/p/android/issues/detail?id=52962

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