Android 在代码中使用了类似于 if 的风格

BuildConfig.FLAVOR gives you combined product flavor. So if you have only one flavor dimension:

productFlavors {
normal {
}


admin {
}
}

Then you can just check it:

if (BuildConfig.FLAVOR.equals("admin")) {
...
}

But if you have multiple flavor dimensions:

flavorDimensions "access", "color"


productFlavors {
normal {
dimension "access"
}


admin {
dimension "access"
}


red {
dimension "color"
}


blue {
dimension "color"
}
}

there are also BuildConfig.FLAVOR_access and BuildConfig.FLAVOR_color fields so you should check it like this:

if (BuildConfig.FLAVOR_access.equals("admin")) {
...
}

And BuildConfig.FLAVOR contains full flavor name. For example, adminBlue.

To avoid plain string in the condition, you can define a boolean property:

productFlavors {
normal {
flavorDimension "access"
buildConfigField 'boolean', 'IS_ADMIN', 'false'
}


admin {
flavorDimension "access"
buildConfigField 'boolean', 'IS_ADMIN', 'true'
}
}

Then you can use it like this:

if (BuildConfig.IS_ADMIN) {
...
}

You can define either different build configuration fields or different resource values (like string values) per flavor, e.g. (as per Google's gradle tips and recipes), e.g.,

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")
}
}
}

So in this case, something like

productFlavors {
normal {
dimension "access"
buildConfigField("boolean", "IS_ADMIN", "false")
}


admin {
dimension "access"
buildConfigField("boolean", "IS_ADMIN", "true")
}
}

and then use it like

if (BuildConfig.IS_ADMIN) {
...
} else {
...
}

or if it is just to have different string values for different flavors, it can be done with different resValues and then you don't even need the if/then

You can try this way

   productFlavors {
def app_name = "you app name"
development {
versionCode 1
versionName "1.0.1"
buildConfigField 'String', 'varibalename', ""
}


release {
versionCode 1
versionName "1.0.1"
buildConfigField 'String', 'varibalename', ""
}
}

if(BuildConfig.varibalename){}