AvaloniaStack/avalonia-web-react/src/App.jsx

import { useState } from 'react'
import reactLogo from './assets/react.svg'
import viteLogo from './assets/vite.svg'
import heroImg from './assets/hero.png'
import './App.css'
import { api } from './api/index'

function App() {
    const [count, setCount] = useState(0)
    const [weatherData, setWeatherData] = useState(null)
    const [weatherLoading, setWeatherLoading] = useState(false)
    const [weatherError, setWeatherError] = useState(null)

    async function fetchWeather() {
        setWeatherLoading(true)
        setWeatherError(null)
        try {
            const data = await api.wData()
            setWeatherData(data)
        } catch (e) {
            setWeatherError(e.message)
        } finally {
            setWeatherLoading(false)
        }
    }

    return (
        <>
            <section id="center">
                <div className="hero">
                    <img src={heroImg} className="base" width="170" height="179" alt="" />
                    <img src={reactLogo} className="framework" alt="React logo" />
                    <img src={viteLogo} className="vite" alt="Vite logo" />
                </div>
                <div>
                    <h1>Get started</h1>
                    <p>
                        Edit <code>src/App.jsx</code> and save to test <code>HMR</code>
                    </p>
                </div>
                <button
                    type="button"
                    className="counter"
                    onClick={() => setCount((count) => count + 1)}
                >
                    Count is {count}
                </button>

                <div style={{ marginTop: '1.5rem' }}>
                    <button type="button" className="counter" onClick={fetchWeather} disabled={weatherLoading}>
                        {weatherLoading ? '加载中...' : '获取天气数据 (C# 桥接)'}
                    </button>
                    {weatherError && (
                        <p style={{ color: 'red', marginTop: '0.5rem' }}>错误：{weatherError}</p>
                    )}
                    {weatherData && (
                        <p>{JSON.stringify(weatherData)}</p>
                    )}
                </div>
            </section>

            <div className="ticks"></div>

            <section id="next-steps">
                <div id="docs">
                    <svg className="icon" role="presentation" aria-hidden="true">
                        <use href="/icons.svg#documentation-icon"></use>
                    </svg>
                    <h2>Documentation</h2>
                    <p>Your questions, answered</p>
                    <ul>
                        <li>
                            <a href="https://vite.dev/" target="_blank">
                                <img className="logo" src={viteLogo} alt="" />
                                Explore Vite
                            </a>
                        </li>
                        <li>
                            <a href="https://react.dev/" target="_blank">
                                <img className="button-icon" src={reactLogo} alt="" />
                                Learn more
                            </a>
                        </li>
                    </ul>
                </div>
                <div id="social">
                    <svg className="icon" role="presentation" aria-hidden="true">
                        <use href="/icons.svg#social-icon"></use>
                    </svg>
                    <h2>Connect with us</h2>
                    <p>Join the Vite community</p>
                    <ul>
                        <li>
                            <a href="https://github.com/vitejs/vite" target="_blank">
                                <svg
                                    className="button-icon"
                                    role="presentation"
                                    aria-hidden="true"
                                >
                                    <use href="/icons.svg#github-icon"></use>
                                </svg>
                                GitHub
                            </a>
                        </li>
                        <li>
                            <a href="https://chat.vite.dev/" target="_blank">
                                <svg
                                    className="button-icon"
                                    role="presentation"
                                    aria-hidden="true"
                                >
                                    <use href="/icons.svg#discord-icon"></use>
                                </svg>
                                Discord
                            </a>
                        </li>
                        <li>
                            <a href="https://x.com/vite_js" target="_blank">
                                <svg
                                    className="button-icon"
                                    role="presentation"
                                    aria-hidden="true"
                                >
                                    <use href="/icons.svg#x-icon"></use>
                                </svg>
                                X.com
                            </a>
                        </li>
                        <li>
                            <a href="https://bsky.app/profile/vite.dev" target="_blank">
                                <svg
                                    className="button-icon"
                                    role="presentation"
                                    aria-hidden="true"
                                >
                                    <use href="/icons.svg#bluesky-icon"></use>
                                </svg>
                                Bluesky
                            </a>
                        </li>
                    </ul>
                </div>
            </section>

            <div className="ticks"></div>
            <section id="spacer"></section>
        </>
    )
}

export default App