WeakMemoryCache源码：
BaseMemoryCache参见：
/** * Memory cache with {@linkplain WeakReference weak references} to {@linkplain android.graphics.Bitmap bitmaps}<br /> * <br /> * <b>NOTE:</b> This cache uses only weak references for stored Bitmaps. * * @author Sergey Tarasevich (nostra13[at]gmail[dot]com) * @since 1.5.3 */public class WeakMemoryCache extends BaseMemoryCache {@Overrideprotected Reference<Bitmap> createReference(Bitmap value) {return new WeakReference<Bitmap>(value);}}FuzzyKeyMemoryCache源码：/** * MemoryCache的装饰者模式。为cache提供一个特殊功能：（使用Comparator）使得一些不同的keys被当做是等价的。当使用key put一些值到cache中 * 具有“相同”意义的keys将会先被移除（一般不会用到该class） * NOTE: Used for internal needs. Normally you don't need to use this class. */public class FuzzyKeyMemoryCache implements MemoryCache {private final MemoryCache cache;private final Comparator<String> keyComparator;public FuzzyKeyMemoryCache(MemoryCache cache, Comparator<String> keyComparator) {this.cache = cache;this.keyComparator = keyComparator;}@Overridepublic boolean put(String key, Bitmap value) {// Search equal key and remove this entrysynchronized (cache) {String keyToRemove = null;for (String cacheKey : cache.keys()) {if (keyComparator.compare(key, cacheKey) == 0) {keyToRemove = cacheKey;break;}}if (keyToRemove != null) {cache.remove(keyToRemove);}}return cache.put(key, value);}@Overridepublic Bitmap get(String key) {return cache.get(key);}@Overridepublic Bitmap remove(String key) {return cache.remove(key);}@Overridepublic void clear() {cache.clear();}@Overridepublic Collection<String> keys() {return cache.keys();}}
，想要成功，就一定要和成功的人在一起，不然反之
