[React Native] Core Components

✅ Core Components

리액트 네이티브에는 이미 자주 쓰이는 주요 컴포넌트들이 내장되어 있다. 오늘은 이러한 Core Components들에 대해 알아보고자 한다.

⏩ View/Text

import React from "react";
import { View, Text } from "react-native";

const ViewBoxesWithColorAndText = () => {
  return (
    <View
      style={{
        flexDirection: "row",
        height: 100,
        padding: 20
      }}
    >
      <View style={{ backgroundColor: "blue", flex: 0.3 }} />
      <View style={{ backgroundColor: "red", flex: 0.5 }} />
      <Text>Hello World!</Text>
    </View>
  );
};

export default ViewBoxesWithColorAndText;

⏩ SafeAreaView

💥 SafeAreaView는 아이폰의 노치 때문에 만들어진 component로, 내용물이 노치에 가려지지 않도록 방지해준다.

const App = () => {
  return (
    <SafeAreaView style={styles.container}>
      <Text>Page content</Text>
    </SafeAreaView>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
  },
});

⏩ TextInput

import React, { Component } from 'react';
import { TextInput } from 'react-native';

const UselessTextInput = () => {
  const [value, onChangeText] = React.useState('Useless Placeholder');

  return (
    <TextInput
      style={{ height: 40, borderColor: 'gray', borderWidth: 1 }}
      onChangeText={text => onChangeText(text)}
      value={value}
    />
  );
}

export default UselessTextInput;

⏩ ScrollView

const App = () => {
  return (
    <SafeAreaView style={styles.container}>
      <ScrollView style={styles.scrollView}>
        <Text style={styles.text}>
          Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do
          eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad
          minim veniam, quis nostrud exercitation ullamco laboris nisi ut
          aliquip ex ea commodo consequat. Duis aute irure dolor in
          reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla
          pariatur. Excepteur sint occaecat cupidatat non proident, sunt in
          culpa qui officia deserunt mollit anim id est laborum.
        </Text>
      </ScrollView>
    </SafeAreaView>
  );
}

⏩ Image

const DisplayAnImage = () => {
  return (
    <View style={styles.container}>
      <Image
        style={styles.tinyLogo}
        source={require('@expo/snack-static/react-native-logo.png')}
      />
      <Image
        style={styles.tinyLogo}
        source={{
          uri: 'https://reactnative.dev/img/tiny_logo.png',
        }}
      />
      <Image
        style={styles.logo}
        source={{
          uri:
            'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADMAAAAzCAYAAAA6oTAqAAAAEXRFWHRTb2Z0d2FyZQBwbmdjcnVzaEB1SfMAAABQSURBVGje7dSxCQBACARB+2/ab8BEeQNhFi6WSYzYLYudDQYGBgYGBgYGBgYGBgYGBgZmcvDqYGBgmhivGQYGBgYGBgYGBgYGBgYGBgbmQw+P/eMrC5UTVAAAAABJRU5ErkJggg==',
        }}
      />
    </View>
  );
}