android - Retrofit 包含公共的请求参数怎么写

Question

在一个项目的很多个retorfit接口中，都要带上一些公共的参数用于日志记录、统计分析等，比如设备信息、版本号、包名等参数。

除了在每一个retrofit接口上手动写一遍以外，有没有封装型的写法？

Answer 1

It seems that you can customize OkhttpClient’s interceptor

Answer 2

You can add a unified header

    builder.addInterceptor(new Interceptor() {
        @Override
        public Response intercept(Chain chain) throws IOException, java.io.IOException {
            Request request = chain.request().newBuilder()
                    .addHeader("Source", "android")
                    .addHeader("Accept", "application/json,text/javascript,*/*")
                    .build();
            return chain.proceed(request);
        }
    });

Answer 3

Everything you need is here: retrofit package

Answer 4

Interceptor is what you need.