如何在 kotlin 中获取当前的构建变体

Posted 2023-02-16

【中文标题】如何在 kotlin 中获取当前的构建变体

【英文标题】：How to get current build variant in kotlin

【发布时间】：2019-08-14 04:24:45

【问题描述】：

我的 android 项目中有几个构建变体。

如何检查 Kotlin 代码中正在编译的变体？我想做出这样的条件：如果是本地变体，则执行此操作，否则如果是远程变体，则执行此操作...

例如这样的：

// kotlin code:
if (build.variant=="local") 
...

else

...

【参考方案1】：

在构建时，Gradle 会生成 BuildConfig 类，以便您的应用代码 可以检查有关当前构建的信息。

查看该类提供的选项：taken from

public final class BuildConfig 
  public static final boolean DEBUG = Boolean.parseBoolean("true");
  public static final String APPLCATION_ID = "com.example.app";
  public static final String BUILD_TYPE = "debug";
  public static final String FLAVOR = "";
  public static final int VERSION_CODE = 1;
  public static final String VERSION_NAME = "";

您也可以根据自己的需求定义自定义变量：

android 
  ...
  buildTypes 
    release 
      // These values are defined only for the release build, which
      // is typically used for full builds and continuous builds.
      buildConfigField("String", "BUILD_TIME", "\"$minutesSinceEpoch\"")
      resValue("string", "build_time", "$minutesSinceEpoch")
      ...
    
    debug 
      // Use static values for incremental builds to ensure that
      // resource files and BuildConfig aren't rebuilt with each run.
      // If they were dynamic, they would prevent certain benefits of
      // Instant Run as well as Gradle UP-TO-DATE checks.
      buildConfigField("String", "BUILD_TIME", "\"0\"")
      resValue("string", "build_time", "0")
    
  

并使用它：

Log.i(TAG, BuildConfig.BUILD_TIME)
Log.i(TAG, getString(R.string.build_time))

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