Android okhttp 4.9 封装

package org.dwx.mydemo.Util;

import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.json.JSONObject;

import java.io.IOException;

import okhttp3.Callback;
import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okio.BufferedSink;

public class Network {
    private OkHttpClient client;

    public void get(String url, Callback callback) {
        client = new OkHttpClient();
        Request builder = new Request.Builder().url(url).build();
        client.newCall(builder).enqueue(callback);
    }
    public void getData(String url,String heardName,String heardValue, Callback callback) {
        client = new OkHttpClient();
        Request builder = new Request.Builder().addHeader(heardName,heardValue).url(url).build();
        client.newCall(builder).enqueue(callback);
    }

    public void  post (String url, JSONObject json,MediaType media,Callback callback){
        client = new OkHttpClient();
        RequestBody body = RequestBody.Companion.create(String.valueOf(json),media);
        Request request = new  Request.Builder().url(url).post(body).build();
        client.newCall(request).enqueue(callback);
    }
    public void  put (String url, JSONObject json,String heard,String token,MediaType media,Callback callback){
        client = new OkHttpClient();
        RequestBody body = RequestBody.Companion.create(String.valueOf(json),media);
        Request request = new  Request.Builder().addHeader(heard,token).url(url).put(body).build();
        client.newCall(request).enqueue(callback);
    }
}