title: How do I pass a value to a widget if its already been initialized in an indexedstack?
body: <p>I have  a widget that builds and indexedstack with (2) widgets. One first widget has a list of names, and when you tap a name, the indexedstack index number changes and it changes the page showing the second widget. I want to pass that name value to the second widget. The problem is that my main widget uses an indexedstack because I need the bottomnavigation bar. If I was to use navigator I could modify my widgets constructor but then that would make the whole page reload, which is why I am using a indexedstack so the body pages change the bottomnavigation bar remains the same.</p>