如何解决android studio中Retrofit header中添加变量的问题

public class HeaderInterceptor implements Interceptor {
    @Override
    public Response intercept(Chain chain) throws IOException {
        Request originalRequest = chain.request();
        Request.Builder builder = originalRequest.newBuilder()
                .header("HeaderName", "HeaderValue"); // 添加header变量
        Request newRequest = builder.build();
        return chain.proceed(newRequest);
    }
}

OkHttpClient client = new OkHttpClient.Builder()
        .addInterceptor(new HeaderInterceptor())
        .build();

Retrofit retrofit = new Retrofit.Builder()
        .baseUrl("https://api.example.com/")
        .client(client)
        .build();