Sebelumnya baca tutorial : LATIHAN FLUTTER WEEK#3 : SIKAR HALAMAN APP

Ubah File Home.dart

import 'package:flutter/material.dart';
import '../helper/config.dart' as appConfig;

class Home extends StatelessWidget {

  @override
  Widget build(BuildContext context) {
    return new Scaffold(
      backgroundColor: appConfig.colors.ColorPrimaryDark,
      body: GridView.count(
          crossAxisCount: 3,
        children: <Widget>[

          new customGrid(
            icon: appConfig.icons.icon_home,
            iconTitle: appConfig.strings.text_home,
            iconColor: appConfig.colors.ColorIcon,
            textColor: appConfig.colors.ColorTeks,
            iconSize: 80.0,
            urlWidget: '/urlHome',
          ),

          new customGrid(
            icon: appConfig.icons.icon_absence,
            iconTitle: appConfig.strings.text_absence,
            iconColor: appConfig.colors.ColorIcon,
            textColor: appConfig.colors.ColorTeks,
            iconSize: 80.0,
            urlWidget: '/urlAbsen',
          ),

          new customGrid(
            icon: appConfig.icons.icon_sallary,
            iconTitle: appConfig.strings.text_sallary,
            iconColor: appConfig.colors.ColorIcon,
            textColor: appConfig.colors.ColorTeks,
            iconSize: 80.0,
            urlWidget: '/urlSallary',
          ),





        ],
      ),
    );
  }
}




class customGrid extends StatelessWidget {
  final IconData icon;
  final String iconTitle, urlWidget;
  final Color iconColor, textColor;
  final double iconSize;

  customGrid(
      {this.urlWidget,
      this.textColor,
      this.iconTitle,
      this.iconColor,
      this.iconSize,
      this.icon});

  @override
  Widget build(BuildContext context) {
    return Container(
      margin: EdgeInsets.all(6.0),
      color: appConfig.colors.ColorPrimary,
      child: RaisedButton(
        color: appConfig.colors.ColorPrimary,
          child: Column(
            children: <Widget>[

              Icon(
                icon,
                size: iconSize,
                color: iconColor,
              ),

              Text(
                iconTitle,
                style: TextStyle(color: textColor),
              ),

            ],
          ),
          onPressed: (){
            Navigator.pushNamed(context, urlWidget);
          },
      ),
    );
  }
}

Running dengan flutter run

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