文本输入框

import { Host, TextField, Text, useNativeState } from '@expo/ui/jetpack-compose';

export default function BasicTextFieldExample() {
  const text = useNativeState('');

  return (
    <Host matchContents>
      <TextField value={text}>
        <TextField.Label>
          <Text>用户名</Text>
        </TextField.Label>
      </TextField>
    </Host>
  );
}

import { Host, TextField, Text, useNativeState } from '@expo/ui/jetpack-compose';
import { useCallback } from 'react';

export default function ControlledTextFieldExample() {
  const text = useNativeState('');

  const handleValueChange = useCallback(
    (value: string) => {
      'worklet';
      text.value = value.toUpperCase();
    },
    [text]
  );

  return (
    <Host matchContents>
      <TextField value={text} onValueChange={handleValueChange}>
        <TextField.Label>
          <Text>Name</Text>
        </TextField.Label>
      </TextField>
    </Host>
  );
}

import { Host, OutlinedTextField, Text, useNativeState } from '@expo/ui/jetpack-compose';

export default function OutlinedTextFieldExample() {
  const text = useNativeState('');

  return (
    <Host matchContents>
      <OutlinedTextField value={text}>
        <OutlinedTextField.Label>
          <Text>邮箱</Text>
        </OutlinedTextField.Label>
        <OutlinedTextField.Placeholder>
          <Text>you@example.com</Text>
        </OutlinedTextField.Placeholder>
      </OutlinedTextField>
    </Host>
  );
}

import { Host, BasicTextField, Box, Text, useNativeState } from '@expo/ui/jetpack-compose';
import {
  background,
  clip,
  fillMaxWidth,
  padding,
  Shapes,
} from '@expo/ui/jetpack-compose/modifiers';

export default function BasicTextFieldExample() {
  const value = useNativeState('');

  return (
    <Host matchContents>
      <BasicTextField
        cursorColor="#7c3aed"
        value={value}
        modifiers={[
          fillMaxWidth(),
          clip(Shapes.RoundedCorner(12)),
          background('#f3f4f6'),
          padding(12, 10, 12, 10),
        ]}>
        <BasicTextField.DecorationBox>
          <Box>
            <BasicTextField.Placeholder>
              <Text color="#9ca3af">Search…</Text>
            </BasicTextField.Placeholder>
            <BasicTextField.InnerTextField />
          </Box>
        </BasicTextField.DecorationBox>
      </BasicTextField>
    </Host>
  );
}

import { Host, TextField, Text, useNativeState } from '@expo/ui/jetpack-compose';

export default function TextFieldSlotsExample() {
  const text = useNativeState('');

  return (
    <Host matchContents>
      <TextField value={text}>
        <TextField.Label>
          <Text>价格</Text>
        </TextField.Label>
        <TextField.Placeholder>
          <Text>0.00</Text>
        </TextField.Placeholder>
        <TextField.LeadingIcon>
          <Text>💰</Text>
        </TextField.LeadingIcon>
        <TextField.Prefix>
          <Text>$</Text>
        </TextField.Prefix>
        <TextField.Suffix>
          <Text>USD</Text>
        </TextField.Suffix>
        <TextField.SupportingText>
          <Text>输入金额</Text>
        </TextField.SupportingText>
      </TextField>
    </Host>
  );
}

import { Host, TextField, Text, useNativeState } from '@expo/ui/jetpack-compose';

export default function KeyboardOptionsExample() {
  const text = useNativeState('');

  return (
    <Host matchContents>
      <TextField
        value={text}
        singleLine
        keyboardOptions={{
          keyboardType: 'email',
          capitalization: 'none',
          autoCorrectEnabled: false,
          imeAction: 'done',
        }}>
        <TextField.Label>
          <Text>邮箱</Text>
        </TextField.Label>
      </TextField>
    </Host>
  );
}

import { Host, TextField, Text, useNativeState } from '@expo/ui/jetpack-compose';

export default function KeyboardActionsExample() {
  const text = useNativeState('');

  return (
    <Host matchContents>
      <TextField
        value={text}
        singleLine
        keyboardOptions={{ imeAction: 'search' }}
        keyboardActions={{
          onSearch: value => console.log('已搜索：', value),
        }}>
        <TextField.Label>
          <Text>搜索</Text>
        </TextField.Label>
      </TextField>
    </Host>
  );
}

import { useRef } from 'react';
import {
  Host,
  TextField,
  TextFieldRef,
  Button,
  Row,
  Text,
  Column,
  useNativeState,
} from '@expo/ui/jetpack-compose';
import { padding } from '@expo/ui/jetpack-compose/modifiers';

export default function ImperativeRefExample() {
  const ref = useRef<TextFieldRef>(null);
  const text = useNativeState('');

  return (
    <Host matchContents>
      <Column>
        <TextField ref={ref} value={text} singleLine>
          <TextField.Label>
            <Text>姓名</Text>
          </TextField.Label>
        </TextField>
        <Row horizontalArrangement={{ spacedBy: 8 }} modifiers={[padding(8, 0, 0, 0)]}>
          <Button onClick={() => ref.current?.setText('Hello world')}>
            <Text>设置文本</Text>
          </Button>
          <Button onClick={() => ref.current?.clear()}>
            <Text>清空</Text>
          </Button>
          <Button onClick={() => ref.current?.setSelection(0, 5)}>
            <Text>选中前两个词</Text>
          </Button>
        </Row>
        <Row horizontalArrangement={{ spacedBy: 8 }} modifiers={[padding(8, 0, 0, 0)]}>
          <Button onClick={() => ref.current?.focus()}>
            <Text>聚焦</Text>
          </Button>
          <Button onClick={() => ref.current?.blur()}>
            <Text>失焦</Text>
          </Button>
        </Row>
      </Column>
    </Host>
  );
}

import { Host, TextField, Text, useNativeState } from '@expo/ui/jetpack-compose';
import { fillMaxWidth } from '@expo/ui/jetpack-compose/modifiers';
import { useCallback } from 'react';

export default function WorkletPhoneMaskExample() {
  const phone = useNativeState('');
  const selection = useNativeState({ start: 0, end: 0 });

  const handleValueChange = useCallback(
    (v: string) => {
      'worklet';
      const digits = v.replace(/\D/g, '').slice(0, 10);
      let formatted = digits;
      if (digits.length > 6) {
        formatted = `(${digits.slice(0, 3)}) ${digits.slice(3, 6)}-${digits.slice(6)}`;
      } else if (digits.length > 3) {
        formatted = `(${digits.slice(0, 3)}) ${digits.slice(3)}`;
      }
      if (formatted !== v) {
        phone.value = formatted;
        // Demonstration only: jump the cursor to the end. Real masking needs smarter cursor handling.
        selection.value = { start: formatted.length, end: formatted.length };
      }
    },
    [phone, selection]
  );

  return (
    <Host matchContents>
      <TextField
        value={phone}
        selection={selection}
        keyboardOptions={{ keyboardType: 'phone' }}
        modifiers={[fillMaxWidth()]}
        onValueChange={handleValueChange}>
        <TextField.Placeholder>
          <Text>(555) 123-4567</Text>
        </TextField.Placeholder>
      </TextField>
    </Host>
  );
}