code: public Channel setLogoDrawable(String id, String yourPackageName) {
          String endpoint = "android.resource://"+id+"/drawable/";
          this.logoUrl = endpoint + id;
          return this;
      }
docs: If the logo is local, you can provide a drawable instead of a URL
  Provide the id from R.drawable.{id} as a String
  @param id resource name of your logo
  @param yourPackageName Package name of your app (should be a temporary thing)
  @return Itself