Android(安卓)第三方开源：Volley通过网络下载数据

import com.android.volley.RequestQueue;import com.android.volley.Response;import com.android.volley.Response.ErrorListener;import com.android.volley.Response.Listener;import com.android.volley.VolleyError;import com.android.volley.toolbox.ImageRequest;import com.android.volley.toolbox.StringRequest;import com.android.volley.toolbox.Volley;import android.app.Activity;import android.graphics.Bitmap;import android.graphics.Bitmap.Config;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;import android.widget.ImageView;import android.widget.TextView;import android.widget.Toast;public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);final TextView text = (TextView) findViewById(R.id.text);final ImageView image = (ImageView) findViewById(R.id.image);//第一步： 创建Volley队列RequestQueue request = Volley.newRequestQueue(this);//第二步：访问对象 ，String类型StringRequest stringRequest = new StringRequest("http://www.kan300.com", new Listener<String>() {/* *  * onResponse 连接正确时显示 */@Overridepublic void onResponse(String response) {text.setText(response);}}, new ErrorListener() {/* *  * onErrorResponse 连接错误时显示 */@Overridepublic void onErrorResponse(VolleyError error) {Toast.makeText(MainActivity.this, "错误！", Toast.LENGTH_SHORT).show();}});//访问对象： image类型ImageRequest imageRequest = new ImageRequest("http://avatar.csdn.net/9/7/A/1_zhangphil.jpg", new Listener<Bitmap>() {@Overridepublic void onResponse(Bitmap response) {image.setImageBitmap(response);}}, 0, 0, Config.RGB_565, new ErrorListener() {@Overridepublic void onErrorResponse(VolleyError error) {}});//第三步：将访问对象添加到队列中request.add(stringRequest);request.add(imageRequest);}}</span>
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