- 在build.gradle 内添加以下配置：
android {
...
flavorDimensions "default"
productFlavors {
//测试站和正式站
//构建时命令：gradlew assembleOnline / gradlew assembleDev
online {
dimension "default"
//可以构建不同的包名
applicationId "com.xxx.xxx"
resValue "string", "app_name", "xxx"
buildConfigField "String", "HOST_URL", "\"https://online.xxx.com/\""
buildConfigField "String", "SECRET", "\"xxxxxxxxxxxxxxx\""
buildConfigField "String", "APP_ID", "\"xxx\""
buildConfigField "int", "SOCKET_PORT", "8092"
}
dev {
dimension "default"
applicationId "com.xxx.xxx"
resValue "string", "app_name", "xxx-测试站"
buildConfigField "String", "HOST_URL", "\"https://tester.xxx.com/\""
buildConfigField "String", "SECRET", "\"xxxxxxxxxxxxxxxxxxxx\""
buildConfigField "String", "APP_ID", "\"xxx\""
buildConfigField "int", "SOCKET_PORT", "8093"
}
}
}
点击build，可以生成BuildConfig.java文件，gradle定义的变量都会已静态常量的形式展示：
public final class BuildConfig {
public static final boolean DEBUG = Boolean.parseBoolean("true");
public static final String APPLICATION_ID = "com.xxx.xxx";
public static final String BUILD_TYPE = "debug";
public static final String FLAVOR = "dev";
public static final int VERSION_CODE = 86;
public static final String VERSION_NAME = "2.6";
// Field from product flavor: dev
public static final String APP_ID = "xxx";
// Field from product flavor: dev
public static final String HOST_URL = "https://tester.xxxx.com/";
// Field from product flavor: dev
public static final String SECRET = "xxxxxxxxxxxxxxxxxxx";
// Field from product flavor: dev
public static final int SOCKET_PORT = 8093;
}
在使用的时候，比如要使用HOST_URL,可以直接使用BuildConfig.HOST_URL
在Build Variants中会生成四种构建类型
image.png
开发时具体使用：
如果需要开发环境，Build Variants选择devDebug，连接手机进行调试。
如果需要调试线上环境，选择onlineDebug
打包：
可以使用命令：
gradlew assembleOnline 可生成线上包。
gradlew assembleDev 可生成测试站的正式包
也可以使用Android Studio右侧的Gradle
如果升级Android Studio后，右侧Gradle没有assemble相关的选项
image.png
出现该问题，是因为升级了android studio到4.2.1，默认关闭了，打开即可
image.png
打开后，重新refresh一下：
image.png
就可以打包了。
参考:
- android studio的右侧gradle只有dependens，没有tasks任务栏
https://blog.csdn.net/feijian_/article/details/117573009 - Android Studio3.0 flavorDimensions多维度理解(版本差异化打包)
https://blog.csdn.net/chen_xi_hao/article/details/80526049 - Gradle 之创建 Build Variants
https://www.jianshu.com/p/6ceb15559e81
