as you can see it's a tag that store trips information
in this tag I want to bring only the phonenumber from the tag in firebase not from any other place
thank you
Don't store you data like that, use separate subtags for each element. Then it is easy enough to return the json response for the main tag, and select the phonenumber, using dictionary blocks.
or
Provide a unique delimiter by which you can use the many text manipulation blocks to extract the phonenumber.
As a dictionary (one tag, all elements with identifiers in a "json" string)
As Firebase intends (one tag with sub tags for each element, possibly setting indexes) - uses web component.
The first two would require the return of all the data in the main tag, you then extract the required item from the returned data
The third option would allow you to just return the data you want based upon a query.
You are attempting to store your data as you want to display it in the listview, you want to store your data so that you can easily select individual elements. Displaying in the listview can be easily done back in the app.