<FrameLayout

        android:id="@+id/flImageContainer"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_below="@+id/gvImages"

        android:layout_margin="30dp" >

        <com.android.volley.toolbox.NetworkImageView

            android:id="@+id/nivTestView"

            android:layout_width="100dp"

            android:layout_height="100dp" >

        </com.android.volley.toolbox.NetworkImageView>

    </FrameLayout>

		networkImageView = (NetworkImageView) findViewById(R.id.nivTestView);  ..找到对应的 NetworkImageview

		mQueue = Volley.newRequestQueue(this);     //老样子 ，生成

		LruImageCache lruImageCache = LruImageCache.instance();  // 新加的， 这是一个实现了ImageCache 接口的缓存类 ，使用Lru

		ImageLoader imageLoader = new ImageLoader(mQueue,lruImageCache);  //主要的联网获取图片工作都交给了他

		networkImageView.setDefaultImageResId(R.drawable.ic_launcher);  //默认加载图片

		networkImageView.setErrorImageResId(R.drawable.ic_launcher);	//错误的图片

		networkImageView.setImageUrl(URLS[1], imageLoader);

package com.lms.volleydemo;

import android.graphics.Bitmap;

import android.support.v4.util.LruCache;

import com.android.volley.toolbox.ImageLoader.ImageCache;

public class LruImageCache implements ImageCache{

	private static LruCache<String, Bitmap> mMemoryCache;

	private static LruImageCache lruImageCache;

	private LruImageCache(){

		// Get the Max available memory

		int maxMemory = (int) Runtime.getRuntime().maxMemory();

		int cacheSize = maxMemory / 8;

		mMemoryCache = new LruCache<String, Bitmap>(cacheSize){

			@Override

			protected int sizeOf(String key, Bitmap bitmap){

				return bitmap.getRowBytes() * bitmap.getHeight();

			}

		};

	}

	public static LruImageCache instance(){

		if(lruImageCache == null){

			lruImageCache = new LruImageCache();

		}

		return lruImageCache;

	}

	@Override

	public Bitmap getBitmap(String arg0) {

		return mMemoryCache.get(arg0);

	}

	@Override

	public void putBitmap(String arg0, Bitmap arg1) {

		if(getBitmap(arg0) == null){

			mMemoryCache.put(arg0, arg1);

		}

	}

}