Add navigation tabs (#1)

Add navigation tabs - News, Newest, Ask, and Show

Author: onstash

lib/hn-components.dart

@@ -0,0 +1,69 @@
+import 'package:flutter/material.dart';
+
+class TimeAgo extends StatelessWidget {
+  final String text;
+
+  TimeAgo({Key key, @required this.text}): super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return RichText(
+      text: TextSpan(
+        text: text,
+        style: TextStyle(
+          color: Colors.grey,
+          fontSize: 14.0,
+        )
+      )
+    );
+  }
+}
+
+class FeedCardTitle extends StatelessWidget {
+  final String text;
+  final bool urlOpened;
+
+  FeedCardTitle ({Key key, @required this.text, @required this.urlOpened}): super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Align(
+      alignment: Alignment.centerLeft,
+      child: RichText(
+        text: TextSpan(
+          text: text,
+          style: TextStyle(
+            fontSize: 16.0,
+            fontWeight: FontWeight.w500,
+            color: urlOpened ? Colors.grey : Colors.black,
+            decoration: urlOpened ? TextDecoration.lineThrough : null,
+          )
+        )
+      )
+    );
+  }
+}
+
+class Domain extends StatelessWidget {
+  final String text;
+
+  Domain({Key key, this.text}): super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Align(
+        alignment: Alignment.centerLeft,
+        child: Text(
+            text ?? "",
+            style: TextStyle(
+              fontSize: 16.0,
+              fontWeight: FontWeight.w300,
+              color: Colors.black87,
+            )
+        )
+    );
+  }
+}
+
+
+

lib/hn-model.dart

@@ -0,0 +1,34 @@
+class FeedCard {
+  int id;
+  String title;
+  int points;
+  String user;
+  String timeAgo;
+  int commentsCount;
+  String url;
+  String domain;
+
+  FeedCard({
+    this.id,
+    this.title,
+    this.points,
+    this.user,
+    this.timeAgo,
+    this.commentsCount,
+    this.url,
+    this.domain
+  });
+
+  factory FeedCard.fromJSON(Map<String, dynamic> postJSON) {
+    return FeedCard(
+      id: postJSON["id"] as int,
+      title: postJSON["title"] as String,
+      points: postJSON["points"] as int,
+      user: postJSON["user"] as String,
+      timeAgo: postJSON["time_ago"] as String,
+      commentsCount: postJSON["comments_count"] as int,
+      url: postJSON["url"] as String,
+      domain: postJSON["domain"] as String,
+    );
+  }
+}