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December 6, 2019 06:43
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Contains a simple listview with a FloatingActionButton, where data gets added to the map when the button is clicked, and get uploaded to the database. Another raised button "Clear" clears it.
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import 'package:flutter/foundation.dart'; | |
import 'package:flutter/material.dart'; | |
import 'package:mobile_web_firebase/main.dart'; | |
import 'package:mobile_web_firebase/screens/signin.dart'; | |
import 'package:mobile_web_firebase/services/auth.dart'; | |
//==================This is the Homepage for the app================== | |
String strAppBarTitle = "Healthstation Foundation"; | |
class HomeScreen extends StatefulWidget { | |
@override | |
_HomeScreenState createState() => new _HomeScreenState(); | |
} | |
class _HomeScreenState extends State<HomeScreen> { | |
@override | |
void initState() { | |
loadUserData(); | |
super.initState(); | |
} | |
//Loads user data | |
Future<void> loadUserData() async { | |
//Get the data from firestore | |
await authService.getData(); | |
//Not setState, to reflect the changes of Map to the widget tree | |
setState(() {}); | |
} | |
@override | |
Widget build(BuildContext context) { | |
return MaterialApp( | |
color: Colors.white, | |
home: Scaffold( | |
appBar: AppBar( | |
title: Text((!kIsWeb) ? "Welcome, " + firebaseUser.displayName : "Welcome"), | |
actions: <Widget>[ | |
RaisedButton( | |
child: Text("Log out"), | |
onPressed: () { | |
authService.signOut(); | |
Navigator.pushReplacement(context, MaterialPageRoute(builder: (context) => SignInScreen())); | |
}, | |
) | |
], | |
), | |
//FAB | |
floatingActionButton: FloatingActionButton.extended( | |
label: Text("Add data"), | |
onPressed: () { | |
//Add data to the map | |
userProfile[userProfile.length.toString()] = DateTime.now().toString(); | |
//update the Firestore database | |
authService.setData().then((success) { | |
//If not successfully uploaded, remove the previous change | |
if (!success) userProfile.remove(userProfile.length - 1); | |
}); | |
//rebuild the widget tree | |
setState(() {}); | |
}), | |
//Body | |
body: //Home | |
Column( | |
children: <Widget>[ | |
Container( | |
height: 50, | |
child: RaisedButton( | |
child: new Text( | |
"Clear", | |
style: TextStyle(fontSize: 19), | |
), | |
onPressed: () { | |
setState(() { | |
userProfile.clear(); | |
}); | |
//update the database | |
authService.setData(); | |
}, | |
), | |
), | |
userProfile == null | |
? Center(child: Text("No Data")) | |
: Container( | |
height: MediaQuery.of(context).size.height - 150, | |
child: ListView.builder( | |
itemCount: userProfile.length, | |
itemBuilder: (context, index) { | |
return ListTile( | |
title: Text(userProfile.keys.elementAt(index)), | |
subtitle: Text(userProfile.values.elementAt(index))); | |
}), | |
), | |
], | |
), | |
)); | |
} | |
} |
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