Change String Resources from Gradle

change_strings.gradle

applicationVariants.all { variant ->
    variant.mergeResources.doLast {
        def dir = new File("${buildDir}/intermediates/res/merged/${variant.dirName}")  //iterating through resources, prepared for including to APK (merged resources)
        println("Resources dir " + dir)
        dir.eachFileRecurse { file ->
            if(file.name.endsWith(".xml")) { //processing only files, which names and with .xml
                String content = file.getText('UTF-8')
                if(content != null && content.contains("Bill")) {
                    println("Replacing name in " + file)
                    content = content.replace("Bill", "Will")  //replacing all Bill words with Will word in files
                    file.write(content, 'UTF-8')
                }

            }
        }
    }