表格

一个用于在结构化布局中收集用户输入的 SwiftUI 表单组件。

iOS

tvOS

Included in Expo Go

Recommended version:

~57.0.3

Expo UI 表单与官方 SwiftUI Form API 相匹配。它提供了一个容器，用于对用于数据输入的控件进行分组，例如在设置或检查面板中。

🌐 Expo UI Form matches the official SwiftUI Form API. It provides a container for grouping controls used for data entry, such as in settings or inspection panes.

A Form with two grouped Sections of Toggles and a footer caption

安装

🌐 Installation

Terminal

- npx expo install @expo/ui

If you are installing this in an existing React Native app, make sure to install expo in your project.

用法

🌐 Usage

基本形式

🌐 Basic form

BasicFormExample.tsx

import { useState } from 'react';
import { Host, Form, TextField } from '@expo/ui/swift-ui';

export default function BasicFormExample() {
  return (
    <Host style={{ flex: 1 }}>
      <Form>
        <TextField placeholder="Enter your name" />
      </Form>
    </Host>
  );
}

带有部分的表格

🌐 Form with sections

使用 Section 组件在表单中分组相关控件。

🌐 Use the Section component to group related controls within a form.

FormWithSectionsExample.tsx

import { useState } from 'react';
import { Host, Form, Section, TextField, Toggle, Button } from '@expo/ui/swift-ui';

export default function FormWithSectionsExample() {
  const [notifications, setNotifications] = useState(false);
  const [darkMode, setDarkMode] = useState(false);

  return (
    <Host style={{ flex: 1 }}>
      <Form>
        <Section title="个人资料">
          <TextField placeholder="Name" />
          <TextField placeholder="Email" />
        </Section>

        <Section title="偏好">
          <Toggle
            label="Enable notifications"
            isOn={notifications}
            onIsOnChange={setNotifications}
          />
          <Toggle label="Dark mode" isOn={darkMode} onIsOnChange={setDarkMode} />
        </Section>

        <Section>
          <Button label="Save Changes" onPress={() => console.log('Saved!')} />
        </Section>
      </Form>
    </Host>
  );
}

自定义背景表单

🌐 Form with custom background

使用 scrollContentBackground 修饰符来自定义或隐藏表单的背景。

🌐 Use the scrollContentBackground modifier to customize or hide the form's background.

FormBackgroundExample.tsx

import { useState } from 'react';
import { Host, Form, Section, TextField } from '@expo/ui/swift-ui';
import { scrollContentBackground, background } from '@expo/ui/swift-ui/modifiers';

export default function FormBackgroundExample() {
  return (
    <Host style={{ flex: 1 }}>
      <Form modifiers={[scrollContentBackground('hidden'), background('#F0F0F0')]}>
        <Section title="自定义背景">
          <TextField placeholder="Enter text" />
        </Section>
      </Form>
    </Host>
  );
}

不可滚动表单

🌐 Non-scrollable form

使用 scrollDisabled 修饰符可以防止表单滚动。

🌐 Use the scrollDisabled modifier to prevent the form from scrolling.

注意： scrollDisabled 修饰符仅在 iOS 16 及以上版本和 tvOS 16 及以上版本可用。

NonScrollableFormExample.tsx

import { useState } from 'react';
import { Host, Form, Section, TextField, Toggle } from '@expo/ui/swift-ui';
import { scrollDisabled } from '@expo/ui/swift-ui/modifiers';

export default function NonScrollableFormExample() {
  const [isOn, setIsOn] = useState(false);

  return (
    <Host style={{ flex: 1 }}>
      <Form modifiers={[scrollDisabled()]}>
        <Section title="设置">
          <Toggle label="Enable feature" isOn={isOn} onIsOnChange={setIsOn} />
        </Section>
      </Form>
    </Host>
  );
}

下拉刷新表单

🌐 Pull-to-refresh form

使用 refreshable 修饰符来添加下拉刷新功能。

🌐 Use the refreshable modifier to add pull-to-refresh functionality.

RefreshableFormExample.tsx

import { useState, useCallback } from 'react';
import { Host, Form, Section, Text } from '@expo/ui/swift-ui';
import { refreshable } from '@expo/ui/swift-ui/modifiers';

export default function RefreshableFormExample() {
  const [lastRefresh, setLastRefresh] = useState(new Date());

  const handleRefresh = useCallback(async () => {
    // Simulate network request
    await new Promise(resolve => setTimeout(resolve, 1500));
    setLastRefresh(new Date());
  }, []);

  return (
    <Host style={{ flex: 1 }}>
      <Form modifiers={[refreshable(handleRefresh)]}>
        <Section title="下拉刷新">
          <Text>Last refreshed: {lastRefresh.toLocaleTimeString()}</Text>
        </Section>
      </Form>
    </Host>
  );
}

应用接口

🌐 API

import { Form } from '@expo/ui/swift-ui';

Component

`Form`

Type: React.Element<FormProps>

FormProps

`children`

Type: ReactNode

The content of the form.

Inherited Props

CommonViewModifierProps