Asynchttpclient开源框架下载图片和文本，于Volley和Glide开源框架的区别。

AsyncHttpClient是一款比较流行的Android异步网路加载库，在github上的网址是：https://github.com/loopj/android-async-http
AsyncHttpClient和开源框架 Volley和Glide不同的是，不像Volley和Glide内部已经实现好了缓存策略，AsyncHttpClient自身没有实现缓存策略。

代码如下：

 package com.lixu.asynchttpclient;

 import org.apache.http.Header;
 import com.loopj.android.http.AsyncHttpClient;
 import com.loopj.android.http.AsyncHttpResponseHandler;
 import android.app.Activity;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.os.Bundle;
 import android.widget.ImageView;
 import android.widget.TextView;
 import android.widget.Toast;

 public class MainActivity extends Activity {
     private TextView tv;
     private ImageView iv;

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

         tv = (TextView) findViewById(R.id.tv);

         iv = (ImageView) findViewById(R.id.iv);
         // 文本和图片的网络地址
         String url1 = "http://www.baidu.com";

         String url2 = "https://ss3.bdstatic.com/70cFv8Sh_Q1YnxGkpoWK1HF6hhy/it/u=1183223528,3058066243&fm=116&gp=0.jpg";

         loadtxt(url1);

         loadimage(url2);

     }

     private void loadtxt(String url1) {
         // 创建AsyncHttpClient对象
         AsyncHttpClient ahc = new AsyncHttpClient();
         ahc.get(url1, new AsyncHttpResponseHandler() {

             @Override
             public void onFailure(int arg0, Header[] arg1, byte[] arg2, Throwable arg3) {
                 Toast.makeText(getApplicationContext(), "错误！！", 0).show();
             }

             @Override
             public void onSuccess(int arg0, Header[] arg1, byte[] arg2) {
                 // 将获取到的byte[]数组转换成String字符串
                 tv.setText(new String(arg2));
             }
         });
     }

     private void loadimage(String url2) {

         AsyncHttpClient ahc = new AsyncHttpClient();
         ahc.get(url2, new AsyncHttpResponseHandler() {

             @Override
             public void onFailure(int arg0, Header[] arg1, byte[] arg2, Throwable arg3) {

                 Toast.makeText(getApplicationContext(), "错误！！", 0).show();
             }

             @Override
             public void onSuccess(int arg0, Header[] arg1, byte[] arg2) {
                 // 创建bitmap图片工厂
                 BitmapFactory bf = new BitmapFactory();
                 // 用图片工厂将字节数组转换成bitmap图片
                 Bitmap bitmap = bf.decodeByteArray(arg2, 0, arg2.length);

                 iv.setImageBitmap(bitmap);

             }

         });

     }
 }

xml文件：

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/LinearLayout1"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical" >

     <ScrollView
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:layout_weight="1" >

         <TextView
             android:id="@+id/tv"
             android:layout_width="match_parent"
             android:layout_height="match_parent" />
     </ScrollView>

     <ImageView
         android:id="@+id/iv"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:layout_weight="1" />

 </LinearLayout>

运行效果：