/**
* Get the bitmap from memory cache.
*
* @param uri Unique identifier for which item to get
* @param config
* @return The bitmap if found in cache, null otherwise
*/
public Bitmap getBitmapFromMemCache(String uri, BitmapDisplayConfig config) {
if (mMemoryCache != null && globalConfig.isMemoryCacheEnabled()) {
MemoryCacheKey key = new MemoryCacheKey(uri, config);
return mMemoryCache.get(key);
}
return null;
}
private void addBitmapToMemoryCache(
String uri, BitmapDisplayConfig config, Bitmap bitmap, long expiryTimestamp)
throws IOException {
if (uri != null
&& bitmap != null
&& globalConfig.isMemoryCacheEnabled()
&& mMemoryCache != null) {
MemoryCacheKey key = new MemoryCacheKey(uri, config);
mMemoryCache.put(key, bitmap, expiryTimestamp);
}
}
/** Initialize the memory cache */
public void initMemoryCache() {
if (!globalConfig.isMemoryCacheEnabled()) return;
// Set up memory cache
if (mMemoryCache != null) {
try {
clearMemoryCache();
} catch (Throwable e) {
}
}
mMemoryCache =
new LruMemoryCache<MemoryCacheKey, Bitmap>(globalConfig.getMemoryCacheSize()) {
/**
* Measure item size in bytes rather than units which is more practical for a bitmap cache
*/
@Override
protected int sizeOf(MemoryCacheKey key, Bitmap bitmap) {
if (bitmap == null) return 0;
return bitmap.getRowBytes() * bitmap.getHeight();
}
};
}