列表

import { Host, List, Text, Section } from '@expo/ui/swift-ui';

export default function BasicListExample() {
  return (
    <Host style={{ flex: 1 }}>
      <List>
        <Section title="Fruits">
          <Text>Apple</Text>
          <Text>Banana</Text>
          <Text>Orange</Text>
        </Section>
        <Section title="Vegetables">
          <Text>Carrot</Text>
          <Text>Broccoli</Text>
          <Text>Spinach</Text>
        </Section>
      </List>
    </Host>
  );
}

import { Host, List, Label, Section } from '@expo/ui/swift-ui';

export default function ListWithLabelsExample() {
  return (
    <Host style={{ flex: 1 }}>
      <List>
        <Section title="Settings">
          <Label title="Wi-Fi" systemImage="wifi" />
          <Label
            title="Bluetooth"
            systemImage="antenna.radiowaves.left.and.right"
          />
          <Label
            title="Cellular"
            systemImage="antenna.radiowaves.left.and.right.circle"
          />
        </Section>
      </List>
    </Host>
  );
}

import { useState } from 'react';
import {
  Host,
  List,
  Text,
  Section,
  Picker,
} from '@expo/ui/swift-ui';
import {
  listStyle,
  pickerStyle,
  tag,
} from '@expo/ui/swift-ui/modifiers';

const styles = [
  'automatic',
  'plain',
  'inset',
  'insetGrouped',
  'grouped',
  'sidebar',
] as const;

export default function ListStylesExample() {
  const [styleIndex, setStyleIndex] = useState(0);

  return (
    <Host style={{ flex: 1 }}>
      <List modifiers={[listStyle(styles[styleIndex])]}>
        <Section title="Style Picker">
          <Picker
            label="List Style"
            selection={styleIndex}
            onSelectionChange={setStyleIndex}
            modifiers={[pickerStyle('menu')]}>
            {styles.map((style, index) => (
              <Text key={style} modifiers={[tag(index)]}>
                {style}
              </Text>
            ))}
          </Picker>
        </Section>
        <Section title="Sample Items">
          <Text>Item 1</Text>
          <Text>Item 2</Text>
          <Text>Item 3</Text>
        </Section>
      </List>
    </Host>
  );
}

import { useState } from 'react';
import {
  Host,
  List,
  Label,
  Section,
  Button,
  Toggle,
} from '@expo/ui/swift-ui';
import { environment, tag } from '@expo/ui/swift-ui/modifiers';

type Task = { id: string; title: string };

const INITIAL_TASKS: Task[] = [
  { id: '1', title: 'Task 1' },
  { id: '2', title: 'Task 2' },
  { id: '3', title: 'Task 3' },
  { id: '4', title: 'Task 4' },
];

export default function EditableListExample() {
  const [tasks, setTasks] = useState<Task[]>(INITIAL_TASKS);
  const [selectedIds, setSelectedIds] = useState<string[]>([]);
  const [editMode, setEditMode] = useState(false);

  const handleDelete = (indices: number[]) => {
    setTasks(prev => prev.filter((_, i) => !indices.includes(i)));
  };

  const handleMove = (
    sourceIndices: number[],
    destination: number
  ) => {
    setTasks(prev => {
      const newTasks = [...prev];
      const [removed] = newTasks.splice(sourceIndices[0], 1);
      const adjustedDest =
        sourceIndices[0] < destination
          ? destination - 1
          : destination;
      newTasks.splice(adjustedDest, 0, removed);
      return newTasks;
    });
  };

  return (
    <Host style={{ flex: 1 }}>
      <List
        selection={selectedIds}
        onSelectionChange={ids => setSelectedIds(ids.map(String))}
        modifiers={[
          environment('editMode', editMode ? 'active' : 'inactive'),
        ]}>
        <Section title="Settings">
          <Toggle
            label="Edit mode"
            isOn={editMode}
            onIsOnChange={setEditMode}
          />
        </Section>
        <Section title="Tasks">
          <List.ForEach onDelete={handleDelete} onMove={handleMove}>
            {tasks.map(task => (
              <Label
                key={task.id}
                title={task.title}
                modifiers={[tag(task.id)]}
              />
            ))}
          </List.ForEach>
        </Section>
      </List>
    </Host>
  );
}

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

export default function RefreshableListExample() {
  const [lastRefresh, setLastRefresh] = useState<Date | null>(null);

  const handleRefresh = async () => {
    // Simulate async data fetching
    await new Promise(resolve => setTimeout(resolve, 1500));
    setLastRefresh(new Date());
  };

  return (
    <Host style={{ flex: 1 }}>
      <List modifiers={[refreshable(handleRefresh)]}>
        <Section title="Data">
          <Text>Pull down to refresh</Text>
          {lastRefresh && (
            <Text>
              Last refresh: {lastRefresh.toLocaleTimeString()}
            </Text>
          )}
        </Section>
      </List>
    </Host>
  );
}

import { Host, List, Text, Section } from '@expo/ui/swift-ui';
import {
  alignmentGuide,
  listRowBackground,
  listRowSeparator,
  listRowSeparatorTint,
  listRowInsets,
} from '@expo/ui/swift-ui/modifiers';

export default function RowStylingExample() {
  return (
    <Host style={{ flex: 1 }}>
      <List>
        <Section title="Styled Rows">
          <Text modifiers={[listRowBackground('blue')]}>
            Blue background
          </Text>
          <Text modifiers={[listRowSeparator('hidden')]}>
            Hidden separator
          </Text>
          <Text modifiers={[listRowSeparatorTint('red')]}>
            Red separator
          </Text>
          <Text modifiers={[listRowInsets({ leading: 40 })]}>
            Extra leading inset
          </Text>
          <Text
            modifiers={[
              listRowInsets({ leading: 0, trailing: 0 }),
            ]}>
            No horizontal insets
          </Text>
          <Text
            modifiers={[
              alignmentGuide('listRowSeparatorLeading', 32),
            ]}>
            Separator starts 32 points in
          </Text>
        </Section>
      </List>
    </Host>
  );
}

import { Host, List, Section, TextField } from '@expo/ui/swift-ui';
import { scrollDismissesKeyboard } from '@expo/ui/swift-ui/modifiers';

export default function KeyboardDismissExample() {
  return (
    <Host style={{ flex: 1 }}>
      <List modifiers={[scrollDismissesKeyboard('interactively')]}>
        <Section title="Form">
          <TextField placeholder="Name" />
          <TextField placeholder="Email" />
          <TextField placeholder="Phone" />
        </Section>
      </List>
    </Host>
  );
}

import { Host, List, Text, Section } from '@expo/ui/swift-ui';
import { headerProminence } from '@expo/ui/swift-ui/modifiers';

export default function HeaderProminenceExample() {
  return (
    <Host style={{ flex: 1 }}>
      <List modifiers={[headerProminence('increased')]}>
        <Section title="Important Section">
          <Text>This section has increased header prominence</Text>
        </Section>
        <Section title="Another Section">
          <Text>Headers are more prominent</Text>
        </Section>
      </List>
    </Host>
  );
}