AsyncTask

	AsyncTask

package com.example.asyncdemo2;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;

import com.example.bean.MyAdapter;
import com.google.gson.Gson;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

private Button btn;
private TextView tv;
private List<List<String>> data=new ArrayList<>();
private String murl="https://suggest.taobao.com/sug?code=utf-8&q=%E6%89%8B%E6%9C%BA";
private ListView lv;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    initView();
}

private void initView() {
    btn = (Button) findViewById(R.id.btn);
    tv = (TextView) findViewById(R.id.tv);
    lv = (ListView)findViewById(R.id.lv);

    btn.setOnClickListener(this);
}

@Override
public void onClick(View v) {
    switch (v.getId()) {
        case R.id.btn:
            new MyTask().execute(murl);

            break;
    }
}

class MyTask extends AsyncTask<String,Void,String>{



    @Override
    protected String doInBackground(String... strings) {
        try {
            String json = HttpUtils.get(murl);
            return json;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    @Override
    protected void onPostExecute(String s) {
        super.onPostExecute(s);
        tv.setText(s);
        Gson gson=new Gson();
        result result = gson.fromJson(s, result.class);
        data = result.getResult();
        Log.d("onPostExecute: zzz",data+"");

        MyAdapter adapter=new MyAdapter(MainActivity.this,data);
        lv.setAdapter(adapter);



    }
}

}