React Native Nativebase如何将选取器向右浮动

import React from 'react';
import { Container, Content, Picker, Item, Label } from 'native-base';

export default function App() {
  const [selectedValue, setSelectedValue] = React.useState('');

  return (
    <Container>
      <Content>
        <Item picker>
          <Label>Select an option:</Label>
          <Picker
            mode="dropdown"
            selectedValue={selectedValue}
            onValueChange={(value) => setSelectedValue(value)}
            style={{ alignSelf: 'flex-end' }}
          >
            <Picker.Item label="Option 1" value="option1" />
            <Picker.Item label="Option 2" value="option2" />
            <Picker.Item label="Option 3" value="option3" />
          </Picker>
        </Item>
      </Content>
    </Container>
  );
}