com.squareup.picasso.LruCache Java Examples

/**
 * Enables or disables the disk cache for the life of the application. This method cannot be
 * called more than once per lifetime of the app and should therefore be called only during
 * application startup; subsequent calls have no effect on the disk cache state.
 *
 * Note that when enabling Piccaso cache indicators, you may still find that some images appear
 * as though they've been loaded from disk. This will be true for any app-packaged drawable or
 * bitmap resource that's placed by Picasso. (These are always "from disk" with or without the
 * presence of a disk cache.) Similarly, it's possible to get green-tagged images when using
 * Picasso to "load" manually pre-loaded BitmapDrawables. 
 *
 * @param diskCacheEnabled
 */
public static void setConfiguration(Context context, boolean diskCacheEnabled, Integer cacheHeapPercent) {
    try {

        Picasso.Builder builder = new Picasso.Builder((ArcusApplication.getContext()));

        if (diskCacheEnabled) {
            builder.downloader(new OkHttp3Downloader(new OkHttpClient()));
        }

        if (cacheHeapPercent != null) {
            ActivityManager am = (ActivityManager) context.getSystemService(ACTIVITY_SERVICE);
            int memoryClass = am.getMemoryClass();

            int heapSize = (int) ((float)(1024 * 1024 * memoryClass) * ((float) cacheHeapPercent / 100.0));
            builder.memoryCache(new LruCache(heapSize));
            logger.debug("Setting Picasso in-memory LRU cache max size to {} bytes; {}% of heap sized {}", heapSize, cacheHeapPercent, 1024 * 1024 * memoryClass);
        }

        Picasso.setSingletonInstance(builder.build());

    } catch (IllegalStateException e) {
        logger.warn("Picasso setConfiguration() has already been called; ignoring request.");
    }
}
 

public static Picasso getPicasso(Context context) {
        if (sPicasso == null) {
            sPicasso = new Picasso.Builder(context)
                    //硬盘缓存池大小
                    .downloader(new OkHttpDownloader(context, ConfigConstants.MAX_CACHE_DISK_SIZE))
                    //内存缓存池大小
                    .memoryCache(new LruCache(ConfigConstants.MAX_CACHE_MEMORY_SIZE))
//                    .defaultBitmapConfig(Bitmap.Config.ARGB_4444)
                    .build();
        }
        return sPicasso;
    }
 

@Override
public void onCreate() {
    super.onCreate();

    Picasso picasso = new Picasso.Builder(this)
            .memoryCache(new LruCache(calculateMemoryCacheSize()))
            .build();
    Picasso.setSingletonInstance(picasso);
}
 

public static Picasso getPicasso(Context context) {
  if (sPicasso == null) {
    sPicasso =
        new Picasso.Builder(context)
            .downloader(new OkHttp3Downloader(context, ConfigConstants.MAX_DISK_CACHE_SIZE))
            .memoryCache(new LruCache(ConfigConstants.MAX_MEMORY_CACHE_SIZE))
            .build();
  }
  return sPicasso;
}