ListItem extension?

[itagakixt]

Hello,

This example is great!
I can understand both works well Firebase and React Native.
This kind of simple example is useful to understand total system's total work.

I would like to modify ListItem to add some more items.
Title + Price + Store etc

Model of database should be changed to manage it.

To improve this example, some suggestion will be appreciated.

Like Title + Price + Store 3 items's extension example in react native code is enough.

If someone already get this work, please give me some point of thi extension?

Thanks
Shoji Itagaki