1 <?xml version="1.0" encoding="utf-8"?>2 <RelativeLayout3     xmlns:android="http://schemas.android.com/apk/res/android"4     xmlns:tools="http://schemas.android.com/tools"5     android:layout_width="match_parent"6     android:layout_height="match_parent"7     tools:context="com.example.nanchen.imageloaderdemo.MainActivity">8 9     <ImageView
10         android:layout_width="wrap_content"
11         android:layout_height="wrap_content"
12         android:src="@mipmap/ic_launcher"
13         android:id="@+id/main_image"
14         android:layout_centerInParent="true"/>
15 </RelativeLayout>

package com.example.nanchen.imageloaderdemo;import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ImageView;import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration; public class MainActivity extends AppCompatActivity { private String imageUrl = "http://pic.cnblogs.com/face/845964/20160301162812.png"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ImageView imageView = (ImageView) findViewById(R.id.main_image); ImageLoader.getInstance().init(ImageLoaderConfiguration.createDefault(this));//初始化完成  ImageLoader.getInstance().displayImage(imageUrl,imageView); } }

<uses-permission android:name="android.permission.INTERNET"/>

 1 //图片展示的管理操作2         DisplayImageOptions options = new DisplayImageOptions.Builder()3                 .cacheInMemory(true)4                 .cacheOnDisk(true)5                 .displayer(new RoundedBitmapDisplayer(20))6                 .showImageOnFail(R.mipmap.ic_launcher)7  .bitmapConfig(Bitmap.Config.RGB_565) 8  .build(); 9 10 11 //这样自定义设置后就可以管理二级缓存和三级缓存了 12 ImageLoaderConfiguration configuration = new ImageLoaderConfiguration.Builder(this) 13 .memoryCacheSizePercentage(20)//设置占用内存的百分比 14 .diskCacheFileCount(100)//设置最大下载图片数 15 .diskCacheSize(5 * 1024 * 1024) 16  .defaultDisplayImageOptions(options) 17  .build(); 18 19 ImageLoader.getInstance().init(configuration);//初始化完成 20 ImageLoader.getInstance().displayImage(imageUrl,imageView);

1         String imagePath = "/mnt/sdcard/image.png";
2         String imageUrl = ImageDownloader.Scheme.FILE.wrap(imagePath);
3
4         ImageLoader.getInstance().init(configuration);//初始化完成
5         ImageLoader.getInstance().displayImage(imageUrl,imageView);

lv.setOnScrollListener(new PauseOnScrollListener(imageLoader, pauseOnScroll, pauseOnFling));
gv.setOnScrollListener(new PauseOnScrollListener(imageLoader, pauseOnScroll, pauseOnFling));