在android / gradle projects项目root build.gradle中指定versionCode

Question

I recently switched from Eclipse to Android Studio (for test purposes) with an production project and it feel really great. I like the gradle way very much.

In Android Studio the project structure looks (simplified) something like this

+RandomProject
|-+Random
| |- build.gradle (lets call it build2)
| |- [...]
|- build.gradle (lets call it build1)
|- [..]

The build1 file has the following content by default:

// Top-level build file where you can add configuration options common to all sub-projects/modules.

I wonder if its possible/a good practice to specify the versionName and versionCode in that ( build1 ) file, so that it is going to be "inherited" to the build2 file. (and if so, how?)

Thanks for the input.

Answer 1

You can do it with ExtraPropertiesExtension .

RandomProject\\build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
ext.compileSdkVersion=19
ext.buildToolsVersion="19"
ext.versionName="1.0.7"
ext.versionCode=7

RandomProject\\Random\\build.gradle

android {

    compileSdkVersion rootProject.compileSdkVersion
    buildToolsVersion rootProject.buildToolsVersion

    defaultConfig {
        versionName rootProject.versionName
        versionCode rootProject.versionCode
    }
}

Answer 2

The New Build System site now has a tip about this. It's similar to Sergii's answer, but subtly different:

In the root project's build.gradle:

ext {
  compileSdkVersion = 19
  buildToolsVersion = "19.0.1"
}

in all the android modules:

android {
  compileSdkVersion rootProject.ext.compileSdkVersion
  buildToolsVersion rootProject.ext.buildToolsVersion
}