question: private ImageLoader ( FragmentActivity activity , int defaultPlaceHolderResId ) { super ( newRequestQueue ( activity ) , BitmapCache . getInstance ( activity . getSupportFragmentManager ( ) ) ) ; mResources = activity . getResources ( ) ; mPlaceHolderDrawables = new ArrayList < Drawable > ( 1 ) ; mPlaceHolderDrawables . add ( defaultPlaceHolderResId == - 1 ? null : mResources . getDrawable ( defaultPlaceHolderResId ) ) ; }
target:  Creates an ImageLoader with Bitmap memory cache and a default placeholder image while the image is being fetched and loaded.