RafaelBarbosatec

import 'dart:io';

import 'package:dio/dio.dart';
import 'package:flutter/material.dart';
import 'package:open_file/open_file.dart';
import 'package:path_provider/path_provider.dart';

void main() {
  runApp(MyApp());
}

RafaelBarbosatec

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',

RafaelBarbosatec

import 'package:flutter/material.dart';
import 'package:flutter_tutorial_medium/Detail.dart';

class Notice extends StatelessWidget {
  var _img;
  var _title;
  var _date;
  var _description;

  Notice(this._img, this._title, this._date, this._description);

RafaelBarbosatec

 @override
  Widget build(BuildContext context) {
    this._context = context;

    //Foi adicionado dentro de Container para adicionar margem no item
    return new Container(
      margin: const EdgeInsets.only(
      left: 10.0, right: 10.0, bottom: 10.0, top: 0.0),
      child: new Material(
          borderRadius: new BorderRadius.circular(6.0),

RafaelBarbosatec

import 'package:flutter/material.dart';

class Detail extends StatelessWidget{

  var _img;
  var _title;
  var _date;
  var _description;

  Detail(this._img,this._title,this._date,this._description);

RafaelBarbosatec

void setCategorys() {

    _categorys.add("Geral");
    _categorys.add("Esporte");
    _categorys.add("Tecnologia");
    _categorys.add("Entretenimento");
    _categorys.add("Saúde");
    _categorys.add("Negócios");

  }

RafaelBarbosatec

import 'package:flutter/material.dart';
import 'Notice.dart';
import 'NewsApi.dart';

class NoticeList extends StatefulWidget{

  final state = new _NoticeListPageState();

  @override
  _NoticeListPageState createState() => state;

RafaelBarbosatec

@override
  Widget build(BuildContext context) {

    return new Scaffold(
      appBar: new AppBar(),
      body: new Container(
        child: new Column(
          children: <Widget>[
            _getListCategory(),
            new Expanded(

RafaelBarbosatec

Widget _buildCategoryItem(index){

    return new GestureDetector(
      onTap: (){
        onTabCategory(index);
      },
      child: new Center(
        child: new Container(
          margin: new EdgeInsets.only(left: 10.0),
          child: new Material(

RafaelBarbosatec

Widget _getListCategory(){

    ListView listCategory = new ListView.builder(
        itemCount: _categorys.length,
        scrollDirection: Axis.horizontal,
        itemBuilder: (context, index){
          return _buildCategoryItem(index);
        }
    );