android - Using a different manifestPlaceholder for each Build Variant

Question

I will start by saying that I am very new to Gradle, so I apologize if this has already been answered.

I'm working on an Android application that uses an API key to access a 3rd party tool. A different API key needs to be used depending on both the flavor and build type of the app.

Here is a basic outline of what I'm trying to do:

android {
    defaultConfig {
        manifestPlaceholders = [ apiKey:"DEBUG_KEY" ]
    }

    buildTypes{
        debug{
            // Some debug setup
        }
        release{
            // Some release setup
        }
    }

    productFlavors {
        // List of flavor options
    }
    productFlavors.all{ flavor->
        if (flavor.name.equals("someFlavor")) {
            if (buildType.equals("release")) {
                manifestPlaceholders = [ apiKey:"RELEASE_KEY_1" ]
            } else {
                manifestPlaceholders = [ apiKey:"DEBUG_KEY" ]
            }
        } else {
            if (buildType.equals("release")) {
                manifestPlaceholders = [ apiKey:"RELEASE_KEY_2" ]
            } else {
                manifestPlaceholders = [ apiKey:"DEBUG_KEY" ]
            }    
        }
    }
}

So far the manifestPlaceholders statement is working in a very simple case, but I don't know how to reference the buildType from within the productFlavors block so that I can use it as a conditional.

Answer 1

You may set manifestPlaceholders inside applicationVariants by accessing mergedFlavor for specific applicationVariant.

android.applicationVariants.all { variant ->
    def mergedFlavor = variant.getMergedFlavor()
    mergedFlavor.manifestPlaceholders = [appPackageId: "myPackageExample"]
}