core/src/in/srain/cube/image/impl/DefaultMemoryCache.java
@Override
    public BitmapDrawable get(String key) {
        BitmapDrawable memValue = null;
        if (mMemoryCache != null) {
            memValue = mMemoryCache.get(key);
        }
        return memValue;
    }
@Override
    public BitmapDrawable get(String key) {
        BitmapDrawable memValue = null;
        if (mMemoryCache != null) {
            memValue = mMemoryCache.get(key);
        }
        return memValue;
    }
Get from memory cache.