💄 Optimize styling
This commit is contained in:
157
lib/main.dart
157
lib/main.dart
@@ -1,20 +1,28 @@
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import 'package:flutter/material.dart';
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import 'package:google_fonts/google_fonts.dart';
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import 'package:latext/latext.dart';
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import 'package:simple_math_calc/models/calculation_step.dart';
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import 'package:simple_math_calc/solver_service.dart';
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import 'package:simple_math_calc/solver.dart';
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import 'dart:math';
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void main() async {
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runApp(const MyApp());
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runApp(const CalcApp());
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}
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class MyApp extends StatelessWidget {
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const MyApp({super.key});
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class CalcApp extends StatelessWidget {
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const CalcApp({super.key});
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: '方程计算器',
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theme: ThemeData(primarySwatch: Colors.blue, useMaterial3: true),
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theme: ThemeData(
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primarySwatch: Colors.blue,
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useMaterial3: true,
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textTheme: GoogleFonts.notoSerifScTextTheme(
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Theme.of(context).textTheme, // Inherit existing text theme
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),
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),
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home: const CalculatorHomePage(),
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);
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}
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@@ -68,32 +76,41 @@ class _CalculatorHomePageState extends State<CalculatorHomePage> {
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(title: const Text('方程与表达式计算器')),
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body: Padding(
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padding: const EdgeInsets.all(16.0),
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child: Column(
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children: [
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TextField(
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controller: _controller,
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decoration: const InputDecoration(
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border: OutlineInputBorder(),
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labelText: '输入方程或表达式',
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hintText: '例如: 2x^2 - 8x + 6 = 0',
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),
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onSubmitted: (_) => _solveEquation(),
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body: Column(
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children: [
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Padding(
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padding: const EdgeInsets.only(left: 16.0, right: 16.0, top: 16.0),
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child: Row(
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spacing: 8,
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children: [
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Expanded(
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child: TextField(
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controller: _controller,
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textAlign: TextAlign.center,
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decoration: InputDecoration(
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border: const OutlineInputBorder(),
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labelText: '输入方程或表达式',
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floatingLabelAlignment: FloatingLabelAlignment.center,
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hintText: '例如: 2x^2 - 8x + 6 = 0',
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),
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onSubmitted: (_) => _solveEquation(),
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),
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),
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IconButton(
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onPressed: _solveEquation,
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icon: Icon(Icons.play_arrow),
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),
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],
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),
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const SizedBox(height: 16),
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ElevatedButton(onPressed: _solveEquation, child: const Text('计算')),
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const SizedBox(height: 16),
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const Divider(),
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Expanded(
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child: _isLoading
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? const Center(child: CircularProgressIndicator())
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: _result == null
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? const Center(child: Text('请输入方程开始计算'))
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: buildResultView(_result!),
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),
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],
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),
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),
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Expanded(
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child: _isLoading
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? const Center(child: CircularProgressIndicator())
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: _result == null
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? const Center(child: Text('请输入方程开始计算'))
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: buildResultView(_result!),
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),
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],
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),
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);
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}
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@@ -101,23 +118,66 @@ class _CalculatorHomePageState extends State<CalculatorHomePage> {
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// 构建结果展示视图
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Widget buildResultView(CalculationResult result) {
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return ListView(
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padding: EdgeInsets.only(
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left: 16,
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right: 16,
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bottom: MediaQuery.of(context).padding.bottom + 16,
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top: 16,
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),
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children: [
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...result.steps.map(
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(step) => Card(
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margin: const EdgeInsets.symmetric(vertical: 8),
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child: Padding(
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padding: const EdgeInsets.all(12.0),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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child: ClipRRect(
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borderRadius: const BorderRadius.all(Radius.circular(8)),
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child: Stack(
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children: [
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Text(
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step.title,
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style: Theme.of(context).textTheme.titleMedium,
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Padding(
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padding: const EdgeInsets.only(
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left: 12,
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right: 12,
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bottom: 4,
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top: 16,
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),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.center,
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children: [
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Text(
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step.title,
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style: Theme.of(context).textTheme.titleMedium,
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),
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const SizedBox(height: 4),
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SelectableText(step.explanation),
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Center(
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child: LaTexT(
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laTeXCode: Text(
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step.formula,
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style: Theme.of(context).textTheme.titleMedium,
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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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Positioned(
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left: -8,
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top: -8,
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child: Transform.rotate(
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angle: pi / -5,
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child: Opacity(
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opacity: 0.8,
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child: Badge(
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backgroundColor: Theme.of(
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context,
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).colorScheme.primary,
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label: Text(
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step.stepNumber.toString(),
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style: TextStyle(fontSize: 32),
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),
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),
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),
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),
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),
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const SizedBox(height: 4),
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SelectableText(step.explanation),
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const SizedBox(height: 8),
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Center(child: LaTexT(laTeXCode: Text(step.formula))),
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],
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),
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),
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@@ -127,17 +187,24 @@ class _CalculatorHomePageState extends State<CalculatorHomePage> {
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Card(
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color: Theme.of(context).colorScheme.primaryContainer,
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child: Padding(
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padding: const EdgeInsets.all(16.0),
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padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
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child: Column(
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children: [
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const SizedBox(height: 16),
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Text(
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"最终答案:",
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"最终答案",
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style: Theme.of(context).textTheme.titleLarge?.copyWith(
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color: Theme.of(context).colorScheme.onPrimaryContainer,
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),
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),
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const SizedBox(height: 8),
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LaTexT(laTeXCode: Text(result.finalAnswer)),
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LaTexT(
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laTeXCode: Text(
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result.finalAnswer,
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style: Theme.of(context).textTheme.titleMedium?.copyWith(
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color: Theme.of(context).colorScheme.onPrimaryContainer,
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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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