OkHttp的简单使用方法

新建类HttpUtil，能够避免在多个界面须要使用网络请求是代码的重复

package com.example.networktest;

import okhttp3.OkHttpClient;
import okhttp3.Request;

/**
 * Created by lenovo on 2019/3/19.
 */

public class HttpUtil {
    public static void sendOkHttpRequest(String address,okhttp3.Callback callback){
        OkHttpClient client=new OkHttpClient();
        Request request=new Request.Builder().url(address).build();
        client.newCall(request).enqueue(callback);//内部自动打开了线程
    }

Mian.java中点击事件代码

    public void onClick(View v){
        if (v.getId()==R.id.button1){
           // sendRequestWithHttpURLConnection();
            // sendRequestWithOkHttp();
            HttpUtil.sendOkHttpRequest("https://www.qu.la/book/101104/5290362.html",new okhttp3.Callback(){
                @Override
                public void onResponse(Call call, Response response) throws IOException {
                    String responseData=response.body().string();//获取返回的值
                    showResponse(responseData);//本身写的方法
                }

                @Override
                public void onFailure(Call call, IOException e) {

                }
            });
        }
    }

  private  void showResponse(final  String response){
        runOnUiThread(new Runnable() {//因为子线程不许许操做UI因此使用runOnUiThread方法切换到主线程
            @Override
            public void run() {
                text.setText(response);
            }
        });
    }