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：