Flutter Firebase 实时数据库 StreamBuilder 更新

Question

I'm working on a project where I display data from Firebase Realtime Database. I use StreamBuilder to get data from database. For triggering the StreamBuilder I use "_database.child(widget.latestPath).onValue". But sometimes I want to change the path for get another data, but when I change "widget.latesPath" the StreamBuilder doesn't refresh(Only if I use hot reaload). How can I trigger StreamBuilder to refresh the path for the new database?

Answer 1

DatabaseReference databaseRef;

// initState()
databaseRef = _database.child(widget.latestPath);

// build
return StreamBuilder(
    stream: databaseRef.onValue,
    builder: (context, snapshot) {
      // Do something with the data
  },
);

// When u want to update new path
setState(() {
 databaseRef = _database.child(widget.newPath);;
});