android - 将依赖版本从应用程序继承到库模块

Question

我创建了一个在内部使用一些标准依赖项的库:

dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.google.android.gms:play-services-drive:16.0.0'
}

我想知道是否有一种方法可以从应用程序继承依赖版本，比如:

dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:$INHERITED_FROM_APP'
implementation 'com.google.android.gms:play-services-drive:$INHERITED_FROM_APP'
}

Answer 1

在你的项目级build.gradle，定义全局变量

buildscript {    
    ext.global_minSdkVersion = 16
    ext.global_targetSdkVersion = 28
    ext.global_buildToolsVersion = '28.0.1'
    ext.global_supportLibVersion = '28.0.0'
    ext.global_googleLibVersion = '16.0.0'
}

转到应用级别build.gradle，并使用全局变量

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:$global_supportLibVersion'
    implementation 'com.google.android.gms:play-services-drive:$global_googleLibVersion'
}