Продолжаю разбираться с локализацией
This commit is contained in:
Ivan Murashov
237
lib/purchase.dart
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237
lib/purchase.dart
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'dart:convert';
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import 'dart:core';
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import 'package:checker/strings.dart';
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import 'package:checker/common.dart';
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import 'package:checker/consts.dart';
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import 'package:checker/network.dart';
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import 'package:checker/base_state.dart';
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import 'package:checker/purchase_success.dart';
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/// Экран проведения покупки.
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class PurchaseScreen extends StatefulWidget {
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PurchaseScreen(this.user, this.card);
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final String user;
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final String card;
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@override State createState() => new PurchaseScreenState<PurchaseScreen>(user, card);
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}
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class PurchaseScreenState<T> extends BaseState<PurchaseScreen> {
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/// Объект, помогающий вручную изменять введенный пользователем текст.
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/// Используется для форматирования введенных пользователем данных
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/// (удаляет запрещенные символы до их отображаения).
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TextEditingController controller = new TextEditingController();
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PurchaseScreenState(String userString, String card) {
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this.user = JSON.decode(userString);
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this.card = card;
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getLoyality(user['loyalty_url']);
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}
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bool purchaseInProgress = false;
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Map user;
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String card = '';
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String loyality = '';
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@override Widget getScreenContent() {
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return new Column(
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children: <Widget>[new Expanded(child: new ListView(children: <Widget>[
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getValueWithDescription(Strings.of(context).userName(), user['first_name'] == null ? '' : user['first_name']),
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getValueWithDescription(Strings.of(context).card(), card),
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getValueWithDescription(Strings.of(context).reward(), loyality),
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getHintLabel(),
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getInputField(),
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buildButton(getScreenMargins(36.0), getCompleteButton()),
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buildButton(getScreenMargins(24.0), getScanButton(context, Strings.of(context).scan(), primaryColor))
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]))]);
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}
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getScreenMargins(double top) {
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double side = 42.0;
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return new EdgeInsets.only(top: top, left: side, right: side);
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}
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getCompleteButton() {
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String title = Strings.of(context).completePurchase();
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return buildRaisedButton(context, title, () => onPurchaseClick(context));
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}
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Widget getScanButton(BuildContext context, String title, Color textColor) {
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return new Container(height: buttonHeight, child: new FlatButton(child: new Text(title,
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style: new TextStyle(color: textColor)),
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onPressed: () => startScanner(context)),
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decoration: getDecorationForScanButton());
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}
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getDecorationForScanButton() {
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return new BoxDecoration(
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border: new Border.all(color: primaryColor, width: 1.0),
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borderRadius: new BorderRadius.all(new Radius.circular(4.0)));
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}
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@override String getTitle() {
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return Strings.of(context).carryingPurchase();
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}
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@override getHint() {
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return Strings.of(context).sum();
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}
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@override getMenuButtons(BuildContext context) {
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return <Widget>[getFaqButton(), getLogoutButton()];
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}
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@override Color getTextFilledBackground() {
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return Colors.white;
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}
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@override getTextWidget() {
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return new TextField(
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keyboardType: TextInputType.number,
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decoration: new InputDecoration.collapsed(
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hintText: getHint(),
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hintStyle: new TextStyle(color: greyTextColor, fontSize: 16.0)
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),
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controller: controller,
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onSubmitted: (String text) {
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setState(() {
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controller.text = _parseSum(text);
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});
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},
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textAlign: TextAlign.center,
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autofocus: true,
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);
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}
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getLoyality(String url) async {
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if (await platform.invokeMethod('isOnline')) {
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var headers = {
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'DM-Authorization': 'dmapptoken $appToken',
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'Authorization': 'dmtoken ${token}'
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};
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httpClient.get(url, headers: headers).then((response) {
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print(response.body);
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Map bonuses = JSON.decode(response.body);
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String type = bonuses['type'];
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setState(() {
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if (type == 'amount') {
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this.loyality = '${user['discount']}%';
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} else {
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List amountToBonus = bonuses['amount_to_bonus'];
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double loyalityVal = (double.parse(amountToBonus[1]) / amountToBonus[0]) * 100;
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this.loyality = '${loyalityVal.toStringAsFixed(0)}%';
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}
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});
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}).catchError((error) {
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print(error.toString());
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});
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}
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}
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String _cleanupNumber(String text){
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String tmp = text
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.replaceAll(' ', '')
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.replaceAll('-', '')
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.replaceAll(',', '.')
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.replaceAll('..', '.');
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while(tmp.indexOf('..') != -1){
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tmp = tmp.replaceAll('..', '.');
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}
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return tmp;
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}
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_parseSum(String input) {
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num sumTotal = 0.0;
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String text = _cleanupNumber(input);
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try {
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sumTotal = num.parse(text);
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} catch(exception) {
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print(exception);
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try {
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int idx = text.indexOf('.');
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String integerPart = text.substring(0, idx);
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String fractionalPart = text.substring(idx + 1, text.length);
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if(fractionalPart.length > 2) {
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fractionalPart = fractionalPart.substring(0, 2);
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}
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return '${integerPart}.${fractionalPart}';
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} catch(exception){
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print(exception);
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}
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}
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return sumTotal.toStringAsFixed(2);
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}
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onPurchaseClick(BuildContext context) {
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String val = _parseSum(controller.text);
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showDialog(context: context, child: new AlertDialog(
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title: new Text(Strings.of(context).confirmation()),
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content: new Text(getContentMessage(val)),
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actions: <Widget>[
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new FlatButton(
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child: new Text(Strings.of(context).no()),
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onPressed: () {
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Navigator.of(context).pop();
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},
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),
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new FlatButton(
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child: new Text(Strings.of(context).yes()),
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onPressed: () {
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purchase(val);
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},
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)
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]));
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}
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getContentMessage(String val) {
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return Strings.of(context).confirmPurchase();
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}
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purchase(String sumTotal) async {
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if (await platform.invokeMethod('isOnline')) {
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if (!purchaseInProgress) {
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purchaseInProgress = true;
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platform.invokeMethod('getDocID').then((result) {
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String url = user['purchases_url'];
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var body = {
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'doc_id': result,
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'curr_iso_code': '643',
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'commit': 'true',
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'sum_total': sumTotal
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};
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var headers = {
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'DM-Authorization': 'dmapptoken $appToken',
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'Authorization': 'dmtoken ${token}'
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};
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httpClient.post(url, body: body, headers: headers).then((response) {
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print(response.body);
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Navigator.of(context).pop();
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pushRoute(context, new PurchaseSuccessScreen(sumTotal, user['first_name'] == null ? '' : user['first_name']));
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}).catchError((error) {
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purchaseInProgress = false;
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print(error.toString());
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});
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});
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}
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}
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}
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}
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