Retrofit 方法 添加缓存方法

我写了一个简单添加缓存的方法

 public class Retrofitmanager {
    private Retrofit retrofit;
    private OkHttpClient build;

     //传入上下文对象 和 缓存文件名称 和 设置缓存文件大写
     例如：
      //context,"/wenjian",1024*1024*10
    public Retrofitmanager setCache(Context context, String filename, long maxSize) {
        File path = context.getCacheDir();
        File file = new File(path, filename);
        final Cache cache = new Cache(file, maxSize);
        //缓存时间1小时
        OkHttpClient okHttpClient = new OkHttpClient();
        build = okHttpClient.newBuilder()
                .cache(cache)
                .addInterceptor(new Interceptor() {
                    @Override
                    public Response intercept(Chain chain) throws IOException {
                        Request request = chain.request();
                        Request build = request.newBuilder().cacheControl(new 
           CacheControl.Builder().maxStale(1, TimeUnit.HOURS).build()).build();
                        Response proceed = chain.proceed(build);
                        return proceed;
                    }
                }).build();

        return this;
    }

    public Retrofit build(String baseUrl) {
        if (build == null) {
            retrofit = new Retrofit.Builder()
                    .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
                    .addConverterFactory(GsonConverterFactory.create())
                    .baseUrl(baseUrl).build();
        } else {
            retrofit = new Retrofit.Builder()
                    .client(build)
                    .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
                    .addConverterFactory(GsonConverterFactory.create())
                    .baseUrl(baseUrl).build();

        }
        return retrofit;


    }
}

   需要缓存的时候 

 //需要缓存调用setCache()方法 在调用build()方法
 // "/xxx" 缓存文件夹名字
Retrofit build = new Retrofitmanager().setCache(context,"/xxx",1024*1024*10).build("");

// 不需要缓存是直接调用build()方法

Retrofit build = new Retrofitmanager().build("");
注意：
bulid传入跟接口即可