Stub for the React Native stopwatch app

stopwatch_stub.ts

import React, { useState, useRef } from 'react';
import { View, Text, TouchableOpacity, StyleSheet } from 'react-native';

export default function App() {
  // Set up useState and useRef here...


  // Constants for formatting time here...


  // Function for startStopTimer


  // Function for resetTimer




  return (
    <View style={styles.container}>
      <View style={styles.timeContainer}>
        <Text style={styles.timeDisplay}>{ "00:00:00" }</Text>
      </View>
      
      <View style={styles.buttonContainer}>
        <TouchableOpacity
          // style changes depending on state...
          style={[styles.button, { backgroundColor: '#44ff44' }]}
          onPress={ 
            // need a function here; empty function for now...
            () => {}  
          }
        >
          <Text style={styles.buttonText}>{'Start'}</Text>
        </TouchableOpacity>
        
        <TouchableOpacity
          style={[styles.button, { backgroundColor: '#4444ff' }]}
          onPress={ 
            // need a function here; empty function for now...
            () => {}  
          }
        >
          <Text style={styles.buttonText}>Reset</Text>
        </TouchableOpacity>
      </View>
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: '#f0f0f0',
    justifyContent: 'center',
    alignItems: 'center',
    padding: 20,
  },
  timeContainer: {
    marginBottom: 60,
  },
  timeDisplay: {
    fontSize: 48,
    fontWeight: 'bold',
    color: '#333',
    fontFamily: 'monospace', // Ensures consistent character width
  },
  buttonContainer: {
    flexDirection: 'row',
    justifyContent: 'space-around',
    width: '100%',
    maxWidth: 300,
  },
  button: {
    paddingVertical: 15,
    paddingHorizontal: 30,
    borderRadius: 8,
    marginHorizontal: 10,
    minWidth: 100,
    alignItems: 'center',
    justifyContent: 'center',
  },
  buttonText: {
    color: 'white',
    fontSize: 18,
    fontWeight: 'bold',
  },
});