Simple, performant state management for Flutter.
Define a new ID with static Find.add method anywhere in the app (before first build), i.e., in initState() for the HomePage widget:
Find.add(
id: "myText",
initialState: {
"counter": 0,
},
builder: (Map _state) =>
Text(_state["counter"].toString()),
);
It takes three arguments: a string id, a Map initialState for the first state, and a builder that will build the Widget from the passed state (_state).
Displaying the Widget is done anywhere in code with Find.byId("myText"). That's it! The only logic you need to worry about is ensuring you call Find.add() before using Find.byId(), and initState overrides are a good place for this.
To dynamically update the value when a button is pressed:
FloatingActionButton(
...
onPressed: () => FindData.byId("myText").update(
"counter", // ID
(_counter) => _counter + 1 // state transition fn
),
...
)
Note that Find.add must have been called before the Scaffold containing that FloatingActionButton is built. In the Widget building out the Scaffold, just override initState and set up the ID.
There is an example located at /example, which is the default Flutter application except the state logic is replaced with Find. The regular Flutter application, as it comes, is located at /example_default for comparison.