Resolve Application label for each build type

Question

I want to resolve manifestPlaceholders dependency for each build types and flavors. For example, I have

 productFlavors {
        dev {
            manifestPlaceholders = ['applicationLabel': 'DevFlavor']
        }

        prod {
            manifestPlaceholders = ['applicationLabel': 'ProdFlavor']
        }
.....

 buildTypes {
        debug {
            def old_name = manifestPlaceholders.get('applicationLabel'); // every time is null
//            def old_name = productFlavors.dev.manifestPlaceholders.get('applicationLabel');  // ITS OK, but not dynamic 
            manifestPlaceholders = [applicationLabel: old_name + ' Dev']
        }

Is the any solution to add 'Dev' suffix to debug product flavors?

Thanks for any help

Answer 1

Just to give a working example to my comment above:

1. declare a resValue in your defaultConfig which will become the Application's name. (Attention: if you choose to name it app_name, be sure to delete the original app_name property from your strings.xml file, or it will clash.)

   defaultConfig {
       // applicationId, versionCode, etc.
   
       (...)
   
       // define your base Applications name here
       resValue 'string', 'app_name', 'MyApp'
   }
   

2. set your productFlavors as you did already. You can leave them empty if it is ok for you to concat your App's name with the flavor's name only, or provide an explicit resValue, which will override the value from defaultConfig.

   productFlavors {
       dev {
           // resValue 'string', 'app_name', 'MyAppDevFlavor'
       }
   
       prod {
           // resValue 'string', 'app_name', 'MyAppProdFlavor'
       }
   }
   

3. configure the resValue's name at gradle configuration time

   android.applicationVariants.all { variant ->
       // get app_name field from defaultConfig
       def appName = variant.mergedFlavor.resValues.get('app_name').getValue()
   
       // concat new App name with each flavor's name
       appName = "${appName}"
       variant.productFlavors.each { flavor ->
           appName += " ${flavor.name}"
       }
   
       // optionally add buildType name
       appName += " ${variant.buildType.name}"
   
       // your requirement: if buildType == debug, add DEV to App name
       if(variant.buildType.name == "debug") {
           appName += " DEV"
       }
   
       // set new resVale
       variant.resValue 'string', 'app_name', appName
   }
   

4. In your AndroidManifest, set the app_name field:

   <application
       ...
       android:label="@string/app_name"
       ...
       >
   

As I mentioned above, be sure to delete the default app_name property from strings.xml