如何在运行时在 Android Studio 中获得构建变量？

小开

最佳答案

Look at the generated BuildConfig class.

public final class BuildConfig {
public static final boolean DEBUG = Boolean.parseBoolean("true");
public static final String APPLICATION_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 = "";
}

小开

You can try with

getPackageName();

it will return what you've defined in build.gradle

productFlavours{
flavour1{
applicationId 'com.example.package.flavour1'
}
flavour2{
applicationId 'com.example.package.flavour2'
}
}

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Another option would be to create a separate build config variable for each build variant and use it in your code like this:

In your build.gradle file:

productFlavors {


production {
buildConfigField "String", "BUILD_VARIANT", "\"prod\""
}


dev {
buildConfigField "String", "BUILD_VARIANT", "\"dev\""
}
}

To use it in your code:

if (BuildConfig.BUILD_VARIANT.equals("prod")){ // do something cool }

小开

Here is an example to define and get BuildConfig for different flavor

android {


defaultConfig {
...
buildTypes {
...
}


flavorDimensions "default"
productFlavors {


develop {
applicationIdSuffix ".dev"
versionNameSuffix "-dev"
}


staging {
applicationIdSuffix ".stg"
versionNameSuffix "-stg"
}


production {
applicationIdSuffix ""
versionNameSuffix ""
}
}


applicationVariants.all { variant ->


def BASE_URL = ""


if (variant.getName().contains("develop")) {
BASE_URL = "https://localhost:8080.com/"
} else if (variant.getName().contains("staging")) {
BASE_URL = "https://stagingdomain.com/"
} else if (variant.getName().contains("production")) {
BASE_URL = "https://productdomain.com/"
}
variant.buildConfigField "String", "BASE_URL", "\"${BASE_URL}\""


}
}

Using

BuildConfig.BASE_URL

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If you are already flavoring then no need to provide extra string field in your gradle. Just follow simple steps to get the build details:

For build variant : BuildConfig.FLAVOR
For build version code : BuildConfig.VERSION_CODE
For build version name : BuildConfig.VERSION_NAME

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you can check direct with BuildConfig and your config name in everwhere, BuildConfig has already BuildType

if(BuildConfig.BUILD_TYPE == "release"){// TODO}


if(BuildConfig.BUILD_TYPE == "staging"){ //TODO }


if(BuildConfig.BUILD_TYPE == "debug"){ //TODO }