picasso小结

 1 public class UMDocApplication extends Application { 2     private Picasso picasso = null; 3     /**获取Picasso对象**/ 4     public Picasso getPicasso(){ 5         if(picasso == null) 6             cancelPicassoCache(); 7         return picasso; 8     } 9     /**清除缓存并创建对象**/10     public void cancelPicassoCache(){11         if(picasso != null)12             picasso = null;13         LruCache lruCache = new LruCache(getApplicationContext());14         lruCache.clear();15         Picasso.Builder builder = new           Picasso.Builder(getApplicationContext()).memoryCache(lruCache);16         lruCache.clear();17         picasso = builder.build();18     }19 }

1 if (UMDocApplication.getInstance().head != null) {2             UMDocApplication.getInstance().getPicasso()3                     .load(UMDocApplication.getInstance().head).into(img_head);4         }