JsonAdapterAnnotationTypeAdapterFactory.java 文件源码

@SuppressWarnings("unchecked")
@Override
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> targetType) {
  Class<? super T> rawType = targetType.getRawType();
  JsonAdapter annotation = rawType.getAnnotation(JsonAdapter.class);
  if (annotation == null) {
    return null;
  }
  return (TypeAdapter<T>) getTypeAdapter(constructorConstructor, gson, targetType, annotation);
}