No way to invalidate header once it has been created

[gregghz]

StickyHeaderDecoration.getHeader has the section:

if (mHeaderCache.containsKey(key)) {
    return mHeaderCache.get(key);
} else {

Thus once a header has been added to the cache there it will never be regenerated. Calling any of the notify* methods on the adapter have no effect.

[plzen]

You can call clearHeaderCache:

decorator.clearHeaderCache()

https://github.com/edubarr/header-decor/blob/master/lib/src/main/java/ca/barrenechea/widget/recyclerview/decoration/StickyHeaderDecoration.java#L89

[gregghz]

thanks, that will be helpful. A way to invalidate a header specifically (like notifyItemChange(i)) would be a nice optimization.