本文介绍了Kotlin + Retrofit + RxJava简单封装使用详解，分享给大家，具体如下：

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实例化Retrofit

object RetrofitUtil {

  val CONNECT_TIME_OUT = 30//连接超时时长x秒
  val READ_TIME_OUT = 30//读数据超时时长x秒
  val WRITE_TIME_OUT = 30//写数据接超时时长x秒

  val retrofit: Retrofit by lazy {
    Log.d("RetrofitUtil", "retrofit init lazy")
    Retrofit.Builder()
        .baseUrl("http://gank.io/api/")  //本文以GitHub API为例
        .addConverterFactory(GsonConverterFactory.create())
        .addCallAdapterFactory(RxJava2CallAdapterFactory.create())
        .client(getOkHttpClient())
        .build()
  }

  private fun getOkHttpClient(): OkHttpClient {
    val builder = OkHttpClient.Builder()
    builder.connectTimeout(CONNECT_TIME_OUT.toLong(), TimeUnit.SECONDS)
        .writeTimeout(WRITE_TIME_OUT.toLong(), TimeUnit.SECONDS)
        .readTimeout(READ_TIME_OUT.toLong(), TimeUnit.SECONDS)
    if (BuildConfig.DEBUG) {
      builder.addInterceptor(HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BODY))
    } else {
      builder.addInterceptor(HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.NONE))
    }
    // 设置请求头
    builder.addInterceptor { chain ->
      val time = (System.currentTimeMillis() / 1000).toString() + ""
      val requestBuilder = chain.request().newBuilder()
      requestBuilder.addHeader("time", time)
      chain.proceed(requestBuilder.build())
    }
    return builder.build()
  }
}

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