simple_grid_view.dart

import 'package:flutter/material.dart';


class PageSimpleGrid extends StatelessWidget {
  const PageSimpleGrid({Key key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title:  Text('Simple Grid View'),
        backgroundColor: Colors.amber,
      ),

      body: GridView.count(crossAxisCount: 3,
      children: List.generate(15, (index){
        int nIndex = index+1;
        String dataIndex = "$nIndex";

        return Center(
          child:Container(
            margin: EdgeInsets.all(10),
            color: Colors.amber,
            height: 100.0,
            width: 100.0,
            child: Text(
              'Data Ke - $dataIndex', style: Theme.of(context).textTheme.headline,
            ),
          ),
        );

      }),

      ),

    );
  }
}