postHttp封裝的程式碼

package honghu.com.test.http;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import java.io.IOException;
import honghu.com.test.jiekou.DataResult;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.OkHttpClient
 
;
import okhttp3.Request;
import okhttp3.Response;
/**
 * Created by Administrator on 2017/5/2.
 */
public class PostHttp {
    private DataResult dataResult;
    private String url;
    private Handler handler;
    public PostHttp(DataResult dataResult, String mUrl, Handler handler) {
        this.dataResult 
 
= dataResult;
        this.url = mUrl;
        this.handler = handler;
}


    public void getPost() {
        OkHttpClient okHttpClient = new OkHttpClient();
FormBody formBody = new FormBody.Builder().add("size", "10").build();
Request request = new Request.Builder().url(url).post(formBody).build();
 
Call call = okHttpClient.newCall(request);
//在子執行緒裡邊開啟任務
call.enqueue(new Callback() {
            @Override
public void onFailure(Call call, IOException e) {

            }

            @Override
public void onResponse(Call call, Response response) throws IOException {
                //得到的請求結果
String string = response.body().string();
Log.d("pengqun","string------------"+string);
Message msg = new Message().obtain();
Bundle bundle = new Bundle();
bundle.putString("res", string);
msg.setData(bundle);
handler.sendMessage(msg);
//回撥
dataResult.rtd(string);
}
        });
}

}

main Activity程式碼

package honghu.com.test;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.TextView;
import honghu.com.test.http.PostHttp;
import honghu.com.test.jiekou.DataResult;
public class Main9Activity extends AppCompatActivity implements DataResult {
    private String url = "http://www.imooc.com/api/teacher?type=4&num=30";
@Override
protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main9);
PostHttp postHttp = new PostHttp(Main9Activity.this, url, handler);
postHttp.getPost();
}

    Handler handler = new Handler() {

        @Override
public void handleMessage(Message msg) {
            super.handleMessage(msg);
Bundle data = msg.getData();
String res = data.getString("res");
            if (res.equals("") && res == null){
                Log.d("彭群", "-------res-----" + res);
}else{
                Log.d("彭群", "-------res-----" + res);
}
            TextView main9_tv=(TextView)findViewById(R.id.main9_tv);
main9_tv.setText(res);
}
    };
@Override
public void rtd(String rtds) {
        Log.d("蓬裙", "--------rtds--------" + rtds);
}

  }

package honghu.com.test.jiekou;
/**
 * Created by Administrator on 2017/5/2.
 */
public interface CallBack {
    String solve(String result);
}