build.gradle

android {
  buildTypes {
    debug {
      minifyEnabled false
      proguardFiles getDefaultProguardFile('proguard-android.txt'), 'src/main/assets/www/proguard-custom.txt'
    }
    release {
      minifyEnabled true
      proguardFiles getDefaultProguardFile('proguard-android.txt'), 'src/main/assets/www/proguard-custom.txt'
    }
  }
}