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4eff5844b1
Avoid having one widget call the other widget with the sku price. It was complicating the entire code base. Also, create a new class PurchaseManager which is a singleton and will be used to manage all purchases from now on. The earlier approach of having the code in a widget would sometimes result in purchases not being confirmed. I'm hoping that putting the class in a singleton will help.
126 lines
2.9 KiB
Dart
126 lines
2.9 KiB
Dart
import 'dart:math';
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import 'package:flutter/material.dart';
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import 'package:equatable/equatable.dart';
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import 'package:in_app_purchase/in_app_purchase.dart';
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class PaymentInfo extends Equatable {
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final double value;
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final String text;
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final String id;
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PaymentInfo({@required this.id, @required this.value, @required this.text});
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@override
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List<Object> get props => [value, text, id];
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static PaymentInfo fromProductDetail(ProductDetails pd) {
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if (pd == null) return null;
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double value = -1;
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if (pd.skProduct != null) {
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value = double.parse(pd.skProduct.price);
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} else if (pd.skuDetail != null) {
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value = pd.skuDetail.originalPriceAmountMicros.toDouble() / 100000;
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}
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return PaymentInfo(
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id: pd.id,
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text: pd.price,
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value: value,
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);
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}
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}
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typedef PaymentSliderChanged = void Function(PaymentInfo);
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class PurchaseSlider extends StatelessWidget {
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final List<PaymentInfo> values;
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final PaymentInfo selectedValue;
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final PaymentSliderChanged onChanged;
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PurchaseSlider({
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@required this.values,
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@required this.selectedValue,
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@required this.onChanged,
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}) {
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values.sort((a, b) => a.value.compareTo(b.value));
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}
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@override
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Widget build(BuildContext context) {
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return Container(
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height: 50,
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child: CustomPaint(
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painter: ShapePainter(
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values: values,
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selectedValue: selectedValue,
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color: Theme.of(context).primaryColor,
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),
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child: Container(),
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),
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);
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}
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}
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class ShapePainter extends CustomPainter {
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final List<PaymentInfo> values;
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final PaymentInfo selectedValue;
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final Color color;
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ShapePainter({
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@required this.values,
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@required this.selectedValue,
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@required this.color,
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});
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@override
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void paint(Canvas canvas, Size size) {
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if (values.isEmpty) {
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return;
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}
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var paint = Paint()
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..color = color
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..strokeWidth = 2
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..strokeCap = StrokeCap.round
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..style = PaintingStyle.stroke;
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var filledPaint = Paint()
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..color = color
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..strokeWidth = 2
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..strokeCap = StrokeCap.round
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..style = PaintingStyle.fill;
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var diff = (values.last.value - values.first.value);
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var w = (size.width / diff) * (selectedValue.value - values.first.value);
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var angle = atan(size.height / size.width);
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var h = w * tan(angle);
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var filledPath = Path();
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filledPath.moveTo(0, size.height);
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filledPath.lineTo(w, size.height);
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filledPath.lineTo(w, size.height - h);
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filledPath.lineTo(0, size.height);
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filledPath.close();
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canvas.drawPath(filledPath, filledPaint);
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var emptyPath = Path();
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emptyPath.moveTo(0, size.height);
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emptyPath.lineTo(size.width, size.height);
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emptyPath.lineTo(size.width, 0);
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emptyPath.lineTo(0, size.height);
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emptyPath.close();
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canvas.drawPath(emptyPath, paint);
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}
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@override
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bool shouldRepaint(CustomPainter oldDelegate) {
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return false;
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}
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}
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