imran.dart

import 'dart:convert';

import 'package:flutter/material.dart';

main() => runApp(MaterialApp(home: LocalJsonKonusu()));

class LocalJsonKonusu extends StatefulWidget {
  @override
  State<StatefulWidget> createState() => LocaleState();
}

class LocaleState extends State<LocalJsonKonusu> {
  List ogrenci;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Local Json Konusu"),
      ),
      body: Container(
        padding: EdgeInsets.all(20.0),
        child: Center(
          child: FutureBuilder(
            future: DefaultAssetBundle.of(context)
                .loadString("assets/veriler/sinif.json"),
            builder: (context, cevap) {
              ogrenci = jsonDecode(cevap.data
                  .toString()); 
              return ListView.builder(
                              itemBuilder: (BuildContext context, int index) {
                  return Card(
                    child: Column(
                      crossAxisAlignment: CrossAxisAlignment.stretch,
                      children: <Widget>[
                        Text("Adı: " + ogrenci[index]['adi']),
                        Text("Soyadı: " + ogrenci[index]['soyadi']),
                        Text("Cinsiyet: " + ogrenci[index]['cinsiyet']),
                      ],
                    ),
                  );
                },
                itemCount: ogrenci == null
                    ? 0
                    : ogrenci
                        .length,     
            );
            },
          ),
        ),
      ),
    );
  }
}