Set widget spacing (float means fraction of widget size, 1 = widget size) @param spacing the spacing to set

Widget size on which was tuning of parameters done. This value is used to scale parameters when widgets has different size @param size returned by wid

@param paddingTop

Set to true if you want component to work with tile z parameter; If you don't have any overlapping view, leave it on default false, because computing

How many items can remain in cache. Lower in case of memory issues @param size number of cached covers