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return purchases screen

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This commit is contained in:
nikitateplyakov
2019-03-06 23:42:10 +08:00
parent e7df51b4cc
commit 0659198a17
9 changed files with 275 additions and 2 deletions
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11
lib/screens/purchase.dart
View File

@@ -1,5 +1,6 @@
import 'package:checker/base/base_screen.dart';
import 'package:checker/db.dart';
import 'package:checker/screens/return.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'dart:convert';
@@ -127,6 +128,16 @@ class PurchaseScreenState<T> extends BaseState<PurchaseScreen> {
return listView;
}
bool showReturnScreen() => true;
void openReturnScreen() {
Future.delayed(const Duration(milliseconds: 200), () {
Route route = MaterialPageRoute<String>(builder: (BuildContext context) =>
ReturnScreen(helper, app, user['id'], user['bonus']), fullscreenDialog: true);
Navigator.push(context, route);
});
}
getBonusInputField() {
var bonusTextField = new TextField(
keyboardType: TextInputType.number,

186
lib/screens/return.dart Normal file
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@@ -0,0 +1,186 @@
import 'dart:convert';
import 'package:checker/base/base_screen.dart';
import 'package:checker/base/base_state.dart';
import 'package:checker/db.dart';
import 'package:checker/strings.dart';
import 'package:flutter/material.dart';
import 'package:checker/network.dart';
import 'package:http/http.dart';
import 'package:intl/intl.dart';
class ReturnScreen extends BaseScreen {
final int userId;
final int bonus;
ReturnScreen(SqliteHelper helper, String app, this.userId, this.bonus) : super(helper, app);
@override
_ReturnScreenState createState() => _ReturnScreenState<ReturnScreen>(helper, app);
}
class _ReturnScreenState<T> extends BaseState<ReturnScreen> {
static DateFormat dateFormat = DateFormat('d MMM yy');
ScrollController _controller;
List _purchases = [];
int _bonus;
int _page = 1;
bool _fullLoaded = false;
bool _loading = false;
_ReturnScreenState(SqliteHelper helper, String app) : super(helper, app);
bool isAutomaticallyImplyLeading() => true;
@override
Widget getScreenContent() => ListView.separated(
itemBuilder: (context, index) {
final TextStyle style = Theme.of(context).textTheme.subhead;
if(index > 0) {
final item = _purchases[index - 1];
final DateTime date = DateTime.parse(item['date']);
final String formattedDate = dateFormat.format(date);
return GestureDetector(
child: Padding(
padding: const EdgeInsets.all(16),
child: Row(
children: <Widget>[
Expanded(
child: Text(formattedDate, style: style),
),
Expanded(
child: Text(item['sum_total'], style: style),
),
Expanded(
child: Text(item['sum_bonus'].toString(), style: style),
)
],
),
),
onTap: () => _confirmReturnPurchase(item, formattedDate),
);
} else {
final TextStyle headerStyle = style.copyWith(color: Colors.grey);
return Padding(
padding: const EdgeInsets.all(16),
child: Row(
children: <Widget>[
Expanded(
child: Container(),
),
Expanded(
child: Text(StringsLocalization.sum(), style: headerStyle),
),
Expanded(
child: Text(StringsLocalization.points(), style: headerStyle),
)
],
),
);
}
},
separatorBuilder: (_, index) => index == 0
? Container()
: Padding(
padding: const EdgeInsets.symmetric(horizontal: 16),
child: Divider(height: 1,),
),
itemCount: _purchases.length > 0 ? _purchases.length + 1 : _purchases.length,
controller: _controller);
@override
Widget build(BuildContext context) => getMainWidget();
@override
String getTitle() => StringsLocalization.returnLabel();
@override
void initState() {
super.initState();
setState(() {
loading = true;
});
_loadUserPurchases();
_bonus = widget.bonus;
_controller = ScrollController();
_controller.addListener(_scrollListener);
}
void _scrollListener() {
if (_controller.offset >= _controller.position.maxScrollExtent &&
!_controller.position.outOfRange) {
_loadUserPurchases();
}
}
void _loadUserPurchases() async {
if(!_fullLoaded && !_loading) {
_loading = true;
setState(() => loading = true);
String token = await helper.getToken();
Response response = await getUserPurchases(token, widget.userId, _page);
final responseJson = json.decode(response.body);
List purchases = responseJson['results'];
_fullLoaded = _page == responseJson['pages'];
setState(() {
loading = false;
_purchases.addAll(purchases);
});
_page++;
_loading = false;
setState(() => loading = false);
}
}
void _confirmReturnPurchase(Map purchase, String formattedDate) {
showDialog(
context: context,
builder: (context) =>
AlertDialog(
title: Text(StringsLocalization.confirmation()),
content: Text(StringsLocalization.returnConfirmation(
purchase['sum_total'], formattedDate, _bonus + purchase['sum_bonus'])),
actions: <Widget>[
FlatButton(
child: Text(StringsLocalization.no()),
onPressed: () => Navigator.pop(context),
),
FlatButton(
child: Text(StringsLocalization.yes()),
onPressed: () {
Navigator.pop(context);
_returnPurchase(purchase, formattedDate);
}
)
],
)
);
}
void _returnPurchase(Map purchase, String formattedDate) async {
String token = await helper.getToken();
final Response response = await returnPurchase(token, widget.userId, purchase['id']);
if(response.statusCode == 204) {
_bonus += purchase['sum_bonus'];
setState(() {
_purchases.removeWhere((p) => p['id'] == purchase['id']);
});
showDialog(
context: context,
builder: (context) =>
AlertDialog(
title: Text(StringsLocalization.returnConfirmed()),
content: Text(StringsLocalization.returnConfirmedContent(purchase['sum_total'], formattedDate)),
actions: <Widget>[
FlatButton(
child: Text(StringsLocalization.yes()),
onPressed: () => Navigator.pop(context)
)
],
)
);
}
}
}