http://blog.csdn.net/u010072711/article/details/74502822
Android DiskLruCache完全解析，硬盘缓存的最佳方案 http://blog.csdn.net/guolin_blog/article/details/28863651
Android性能优化之使用线程池处理异步任务 http://blog.csdn.net/u010687392/article/details/49850803
Android开发之高效加载Bitmap http://www.cnblogs.com/absfree/p/5361167.html
Android线程同步 http://blog.csdn.net/peng6662001/article/details/7277851/
load --> placeholder --> error --> into
loadFromMemoryCache 成功返回bitmap
loadFromDisk =》addToMemoryCache 获取成功并压缩后把bitmap添加到运行内存 返回bitmap
↑
<--------------------------------
↑
loadFromNet =》 addToDisk =》 loadFromDisk 网络获取成功后调用loadFromDisk添加到文件缓存(返回压缩的bitmap 并添加到运行内存)
//Application中初始化
public class App extends Application {
@Override
public void onCreate() {
super.onCreate();
//初始化图片加载库
DxImageLoader.getInstance().init(getApplicationContext());
}
}
//activity中调用
/****调用示例***/
ImageView imageView0 = (ImageView) findViewById(R.id.image0);
DxImageLoader.getInstance().
load(imgUrls[0]). //load图片地址
placeholder(R.drawable.default_pic_loading). //placeholder占位图
error(R.drawable.app_bg). //error错误图
into(imageView0); //into显示图片的imageView