@Override
protected void onPostExecute(Void result) {
// If after terminating there are still requests in the load queue, the task needs
// to be restarted to serve them. This will barely happen, but it is plausible.
if (isReopenNeeded()) {
Log.d("CacheWorker", "Reopening");
File dir = new File(mContext.getCacheDir().getPath() + File.separator + DISK_CACHE_SUB_DIR);
workerTask = new CacheWorkerTask();
workerTask.execute(dir);
} else {
workerTask = null;
}
}
/**
* Loads the bitmap at the provided url, but checks the cache first.
*
* @param view the view to where the bitmap shall be set.
* @param url the urk of the bitmap. This acts as a key for the cache.
* @param flinging avoid downloading on cache miss.
* @param usePlaceholder use a placeholder while the bitmap loads.
*/
public static void loadBitmap(
ImageView view, String url, boolean flinging, boolean usePlaceholder) {
// 1.- Check memory cache
Bitmap bitmap = MemoryCache.instance().getBitmapFromMemCache(url);
// 2.- On hit, load, on miss, check disk cache
if (bitmap != null) {
Log.d("MemoryCache", "Hit: " + url);
view.setImageBitmap(bitmap);
} else {
Log.d("MemoryCache", "Miss: " + url);
// Add to queue and start the task if necessary
queueLoadRequest(new LoadRequest(view, url, flinging, usePlaceholder));
if (workerTask == null) {
File dir = new File(mContext.getCacheDir().getPath() + File.separator + DISK_CACHE_SUB_DIR);
workerTask = new CacheWorkerTask();
workerTask.execute(dir);
}
}
}
