Merge pull request #4 from SimCoderYoutube/lesson_4/creating_tweets_w…

…ith_firebase_firestore

[Add] post to tweet to firestore

frontend/lib/main.dart

@@ -1,7 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'package:twitter/models/user.dart';
-import 'package:twitter/screens/auth/signup.dart';
 import 'package:firebase_core/firebase_core.dart';
 import 'package:twitter/screens/wrapper.dart';
 import 'package:twitter/services/auth.dart';

frontend/lib/screens/main/home.dart

@@ -19,6 +19,11 @@ class Home extends StatelessWidget {
  })
  ],
  ),
+ floatingActionButton: FloatingActionButton(
+ onPressed: () {
+ Navigator.pushNamed(context, '/add');
+ },
+ child: Icon(Icons.add)),
  );
  }
 }

frontend/lib/screens/main/posts/add.dart

@@ -0,0 +1,39 @@
+import 'package:flutter/material.dart';
+import 'package:twitter/services/posts.dart';
+
+class Add extends StatefulWidget {
+ Add({Key key}) : super(key: key);
+
+ @override
+ _AddState createState() => _AddState();
+}
+
+class _AddState extends State<Add> {
+ final PostService _postService = PostService();
+ String text = '';
+ @override
+ Widget build(BuildContext context) {
+ return Scaffold(
+ appBar: AppBar(
+ title: Text('Tweet'),
+ actions: <Widget>[
+ FlatButton(
+ textColor: Colors.white,
+ onPressed: () async {
+ _postService.savePost(text);
+ Navigator.pop(context);
+ },
+ child: Text('Tweet'))
+ ],
+ ),
+ body: Container(
+ padding: EdgeInsets.symmetric(vertical: 20, horizontal: 10),
+ child: new Form(child: TextFormField(
+ onChanged: (val) {
+ setState(() {
+ text = val;
+ });
+ },
+ ))));
+ }
+}

frontend/lib/screens/wrapper.dart

@@ -3,6 +3,7 @@ import 'package:provider/provider.dart';
 import 'package:twitter/models/user.dart';
 import 'package:twitter/screens/auth/signup.dart';
 import 'package:twitter/screens/main/home.dart';
+import 'package:twitter/screens/main/posts/add.dart';
 
 class Wrapper extends StatelessWidget {
  const Wrapper({Key key}) : super(key: key);
@@ -18,6 +19,8 @@ class Wrapper extends StatelessWidget {
  }
 
  //show main system routes
- return Home();
+ return MaterialApp(
+ initialRoute: '/',
+ routes: {'/': (context) => Home(), '/add': (context) => Add()});
  }
 }

frontend/lib/services/posts.dart

@@ -0,0 +1,12 @@
+import 'package:cloud_firestore/cloud_firestore.dart';
+import 'package:firebase_auth/firebase_auth.dart';
+
+class PostService {
+ Future savePost(text) async {
+ await FirebaseFirestore.instance.collection("posts").add({
+ 'text': text,
+ 'creator': FirebaseAuth.instance.currentUser.uid,
+ 'timestamp': FieldValue.serverTimestamp()
+ });
+ }
+}

frontend/pubspec.lock

@@ -36,6 +36,27 @@ packages:
  url: "https://pub.dartlang.org"
  source: hosted
  version: "1.1.0-nullsafety.1"
+ cloud_firestore:
+ dependency: "direct main"
+ description:
+ name: cloud_firestore
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "0.14.4"
+ cloud_firestore_platform_interface:
+ dependency: transitive
+ description:
+ name: cloud_firestore_platform_interface
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "2.2.1"
+ cloud_firestore_web:
+ dependency: transitive
+ description:
+ name: cloud_firestore_web
+ url: "https://pub.dartlang.org"
+ source: hosted
+ version: "0.2.1+2"
  collection:
  dependency: transitive
  description:

frontend/pubspec.yaml

@@ -26,6 +26,7 @@ dependencies:
  provider: ^4.3.2+3
  firebase_core: "0.5.3"
  firebase_auth: "^0.18.4"
+ cloud_firestore: ^0.14.4
 
 
  # The following adds the Cupertino Icons font to your application.