android 网络上行速度测试使用retrofit写的

你可以使用Retrofit进行网络请求，并使用OkHttp拦截器来实现上传和下载速率的测量。以下是一个示例：

首先，添加依赖：

implementation 'com.squareup.retrofit2:retrofit:2.9.0'
implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
implementation 'com.squareup.okhttp3:logging-interceptor:4.9.1'

然后，创建一个Retrofit实例：

OkHttpClient.Builder httpClient = new OkHttpClient.Builder()
    .addInterceptor(new Interceptor() {
        @Override
        public okhttp3.Response intercept(Chain chain) throws IOException {
            Request original = chain.request();

            Request.Builder requestBuilder = original.newBuilder()
                    .method(original.method(), original.body());

            Request request = requestBuilder.build();
            return chain.proceed(request);
        }
    })
    .addInterceptor(new HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BODY));

Retrofit retrofit = new Retrofit.Builder()
    .baseUrl("YOUR_BASE_URL")
    .client(httpClient.build())
    .addConverterFactory(GsonConverterFactory.create())
    .build();

接下来，创建一个API接口：

public interface ApiService {
    @Multipart
    @POST("YOUR_ENDPOINT")
    Call<ResponseBody> uploadFile(@Part MultipartBody.Part file);
}

最后，执行网络请求并测量上传速度：

File file = new File("YOUR_FILE_PATH");
RequestBody requestBody = RequestBody.create(MediaType.parse("multipart/form-data"), file);
MultipartBody.Part filePart = MultipartBody.Part.createFormData("file", file.getName(), requestBody);

ApiService service = retrofit.create(ApiService.class);
Call<ResponseBody> call = service.uploadFile(filePart);

long startTime = System.currentTimeMillis();
call.execute();
long endTime = System.currentTimeMillis();

long duration = endTime - startTime;
long fileSize = file.length();
double speed = (double) fileSize / duration;

Log.d("UPLOAD_SPEED", "Speed: " + speed + " bytes/ms");

注意：这只是一个简单的示例代码，你可能需要根据你的具体情况进行适当的调整。此外，测量下载速度的方法与上传速度的方法类似。