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gitanjalgitanjal
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2 parents eaa472a + 12941c6 commit baeaa03

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7 files changed

+303
-109
lines changed

7 files changed

+303
-109
lines changed

‎lib/add_item.dart

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import 'package:flutter/material.dart';
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import 'package:flutter_sqlite/sqlite_helper.dart';
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class AddItemForm extends StatefulWidget {
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AddItemForm({
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Key? key,
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required this.onChange
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}) : super(key: key);
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final Function onChange;
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@override
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State<AddItemForm> createState() => _AddItemFormState();
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}
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class _AddItemFormState extends State<AddItemForm> {
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bool showLoader = false;
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TextEditingController controller = TextEditingController();
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@override
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Widget build(BuildContext context) {
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return showLoader
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? Center(child: CircularProgressIndicator())
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: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Text('Add to local DB'),
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TextFormField(
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controller: controller,
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),
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ElevatedButton(
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onPressed: () async {
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setState(() {
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showLoader = true;
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});
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String text = controller.text;
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Map<String, dynamic> dataToAdd = {
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'title': text,
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'status': 0
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};
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bool added = await SqliteHelper().insert(dataToAdd);
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setState(() {
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showLoader = false;
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});
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if (added) {
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widget.onChange();
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Navigator.of(context).pop();
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}
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},
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child: Text('Save'))
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],
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);
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}
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}

‎lib/each_item.dart

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import 'package:flutter/material.dart';
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import 'package:flutter_sqlite/item_details.dart';
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import 'package:flutter_sqlite/sqlite_helper.dart';
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class EachItem extends StatefulWidget {
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const EachItem({Key? key, required this.item, required this.onChange})
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: super(key: key);
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final Map item;
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final Function onChange;
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@override
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State<EachItem> createState() => _EachItemState();
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}
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class _EachItemState extends State<EachItem> {
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late bool status;
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bool deleting = false;
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SqliteHelper sqliteHelper = SqliteHelper();
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initState() {
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super.initState();
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status = widget.item['status'] == 1 ? true : false;
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}
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@override
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Widget build(BuildContext context) {
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return ListTile(
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onTap: () {
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Navigator.of(context).push(MaterialPageRoute(
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builder: (context) => ItemDetails(widget.item['id'])));
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},
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title: Text(widget.item['title']),
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leading: Checkbox(
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value: status,
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onChanged: (bool? value) {
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Map<String, dynamic> dataToUpdate = {'status': value! ? 1 : 0};
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sqliteHelper.update(widget.item['id'], dataToUpdate);
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setState(() {
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status = value;
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});
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},
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),
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trailing: deleting
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? Container(height: 40, width: 40, child: CircularProgressIndicator())
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: IconButton(
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icon: Icon(Icons.delete),
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onPressed: () async {
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setState(() {
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deleting = true;
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});
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bool deleted = await sqliteHelper.delete(widget.item['id']);
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if (deleted) {
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widget.onChange();
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}
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setState(() {
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deleting = false;
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});
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},
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),
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);
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}
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}

‎lib/item_details.dart

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import 'package:flutter/material.dart';
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import 'package:flutter_sqlite/sqlite_helper.dart';
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class ItemDetails extends StatelessWidget {
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ItemDetails(this.id,{Key? key}) : super(key: key){
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_futureData=SqliteHelper().fetchOne(id);
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}
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late Future<Map> _futureData;
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int id;
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(title: Text('Details'),),
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body: Padding(
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padding: const EdgeInsets.all(8.0),
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child: FutureBuilder<Map>(
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future: _futureData,
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builder: (context,snapshot){
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if(snapshot.hasError)
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{
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return Center(child: Text(snapshot.error.toString()));
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}
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if(snapshot.hasData)
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{
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Map item=snapshot.data!;
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return Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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Text(item['title']),
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Text(item['status']==1?'Purchased':'To purchase'),
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],
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);
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}
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return Center(child: CircularProgressIndicator());
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}),
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),
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);
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}
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}

‎lib/item_list.dart

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import 'package:flutter/material.dart';
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import 'package:flutter_sqlite/add_item.dart';
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import 'package:flutter_sqlite/each_item.dart';
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import 'package:flutter_sqlite/sqlite_helper.dart';
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class ItemList extends StatefulWidget {
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const ItemList({Key? key, required this.title}) : super(key: key);
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final String title;
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@override
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State<ItemList> createState() => _ItemListState();
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}
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class _ItemListState extends State<ItemList> {
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int _counter = 0;
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bool _deletingAll=false;
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bool _orderDesc=false;
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Future<List<Map>> _futureData=SqliteHelper().fetchAll();
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void _addItem() {
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showModalBottomSheet(
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context: context,
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builder: (BuildContext context) {
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return AddItemForm(onChange: refreshItems,);
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});
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: Text('Shopping SQLite'),
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actions: [
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IconButton(onPressed: (){
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_orderDesc=!_orderDesc;
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orderByID(_orderDesc);
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}, icon: Icon(Icons.short_text)),
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_deletingAll?CircularProgressIndicator():IconButton(onPressed: () async {
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setState((){
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_deletingAll=true;
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});
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bool deleted=await SqliteHelper().deleteAll();
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if(deleted)
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{
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refreshItems();
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}
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setState((){
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_deletingAll=false;
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});
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}, icon: Icon(Icons.delete))
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],
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),
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body: FutureBuilder<List<Map>>(
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future: _futureData,
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builder: (context, snapshot) {
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if (snapshot.hasError) {
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return Center(
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child: Text('${snapshot.error}'),
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);
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}
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if (snapshot.hasData) {
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List<Map> items = snapshot.data!;
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return ListView.builder(
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itemCount: items.length,
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itemBuilder: (context, index) {
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Map item = items[index];
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return EachItem(item: item,onChange:refreshItems);
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});
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}
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return CircularProgressIndicator();
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},
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),
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floatingActionButton: FloatingActionButton(
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onPressed: _addItem,
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tooltip: 'Add item',
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child: const Icon(Icons.add),
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), // This trailing comma makes auto-formatting nicer for build methods.
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);
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}
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refreshItems(){
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setState((){
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_futureData=SqliteHelper().fetchAll();
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});
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}
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orderByID(bool desc){
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Future<List<Map>> items;
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if(desc)
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{
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items=SqliteHelper().fetchAllOrderedByID();
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}
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else
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{
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items=SqliteHelper().fetchAll();
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}
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setState((){
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_futureData=items;
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});
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}
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}

‎lib/main.dart

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@@ -1,4 +1,8 @@
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import 'package:flutter/material.dart';
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import 'package:flutter_sqlite/add_item.dart';
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import 'package:flutter_sqlite/each_item.dart';
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import 'package:flutter_sqlite/item_list.dart';
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import 'package:flutter_sqlite/sqlite_helper.dart';
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void main() {
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runApp(const MyApp());
@@ -24,92 +28,11 @@ class MyApp extends StatelessWidget {
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// is not restarted.
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primarySwatch: Colors.blue,
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),
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home: const MyHomePage(title: 'Flutter Demo Home Page'),
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home: const ItemList(title: 'Flutter Demo Home Page'),
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);
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}
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}
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32-
class MyHomePage extends StatefulWidget {
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const MyHomePage({Key? key, required this.title}) : super(key: key);
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// This widget is the home page of your application. It is stateful, meaning
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// that it has a State object (defined below) that contains fields that affect
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// how it looks.
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// This class is the configuration for the state. It holds the values (in this
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// case the title) provided by the parent (in this case the App widget) and
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// used by the build method of the State. Fields in a Widget subclass are
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// always marked "final".
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final String title;
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@override
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State<MyHomePage> createState() => _MyHomePageState();
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}
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class _MyHomePageState extends State<MyHomePage> {
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int _counter = 0;
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void _incrementCounter() {
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setState(() {
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// This call to setState tells the Flutter framework that something has
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// changed in this State, which causes it to rerun the build method below
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// so that the display can reflect the updated values. If we changed
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// _counter without calling setState(), then the build method would not be
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// called again, and so nothing would appear to happen.
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_counter++;
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});
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}
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@override
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Widget build(BuildContext context) {
66-
// This method is rerun every time setState is called, for instance as done
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// by the _incrementCounter method above.
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//
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// The Flutter framework has been optimized to make rerunning build methods
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// fast, so that you can just rebuild anything that needs updating rather
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// than having to individually change instances of widgets.
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return Scaffold(
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appBar: AppBar(
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// Here we take the value from the MyHomePage object that was created by
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// the App.build method, and use it to set our appbar title.
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title: Text(widget.title),
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),
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body: Center(
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// Center is a layout widget. It takes a single child and positions it
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// in the middle of the parent.
81-
child: Column(
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// Column is also a layout widget. It takes a list of children and
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// arranges them vertically. By default, it sizes itself to fit its
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// children horizontally, and tries to be as tall as its parent.
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//
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// Invoke "debug painting" (press "p" in the console, choose the
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// "Toggle Debug Paint" action from the Flutter Inspector in Android
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// Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
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// to see the wireframe for each widget.
90-
//
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// Column has various properties to control how it sizes itself and
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// how it positions its children. Here we use mainAxisAlignment to
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// center the children vertically; the main axis here is the vertical
94-
// axis because Columns are vertical (the cross axis would be
95-
// horizontal).
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mainAxisAlignment: MainAxisAlignment.center,
97-
children: <Widget>[
98-
const Text(
99-
'You have pushed the button this many times:',
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),
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Text(
102-
'$_counter',
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style: Theme.of(context).textTheme.headline4,
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),
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],
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),
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),
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floatingActionButton: FloatingActionButton(
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onPressed: _incrementCounter,
110-
tooltip: 'Increment',
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child: const Icon(Icons.add),
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), // This trailing comma makes auto-formatting nicer for build methods.
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);
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}
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}

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