GridView.count() not updating when values changed in cron - flutter

Question

What I'm trying to do
What I'm trying to do is retrieve data from an API call and pass the data in the response to a GridView.count() widget every minute because the data could change.
I did this using a FutureBuilder widget and the Cron functionality from the cron/cron.dart if that helps.
Here is the code:
FutureBuilder<dynamic>(
future: Api.getFoods(),
builder: (BuildContext context, AsyncSnapshot<dynamic> snapshot) {
List<Widget> slots = [];
if (snapshot.data == null) {
return Text('');
}
var data = snapshot.data;
cron.schedule(new Schedule.parse('*/1 * * * *'), () async {
setState(() {
data = snapshot.data;
});
slots = [];
});
for (int i = 0; i < snapshot.data.length; i++) {
slots.add(new FoodSlot(
snapshot.data[i]['name'],
snapshot.data[i]['created_at'],
snapshot.data[i]['qty'].toString()
));
}
return new GridView.count(
crossAxisCount: 2,
scrollDirection: Axis.vertical,
children: slots
);
})
The FoodSlot widget creates a Card and displays the value passed in the arguments on the card.
What I tried
After debugging, I saw that the cron job works fine, but the GridView widgets just won't update.
I tried using a Text widget instead of the GridView and return the values returned by the API call and the widget is updated automatically every 1 minute as expected.
Why is GridView.count() acting like this and how can I fix this?
UPDATE
When the changes in the database are made, the GridView does update, but only when the application is restarted (using R not r).

Answer 1

Solved!
Turns out I had to add the cron job in the FoodSlot widget and update the widget itself periodically.
Ended up adding the following in the initState() function for FoodSlot:
#override
void initState() {
super.initState();
colorSettings = HelperFunctions.setStateColour(expiry);
cron.schedule(new Schedule.parse('*/1 * * * *'), () async {
setState(() {
Api.getFood(id).then((res) {
expiry = res['created_at'];
name = res['name'];
qty = res['qty'].toString();
colorSettings = HelperFunctions.setStateColour(expiry);
});
});
});
}
Where id is the id of the database entry referenced by the FoodSlot widget.
Hope this helps someone :)