import React, { useRef } from "react";import { Animated, Text, View, StyleSheet, Button, SafeAreaView } from "react-native";const App = () => {  // fadeAnim will be used as the value for opacity. Initial Value: 0
  const fadeAnim = useRef(new Animated.Value(0)).current;
  const fadeIn = () => {    // Will change fadeAnim value to 1 in 5 seconds
    Animated.timing(fadeAnim, {toValue: 1, duration: 5000}).start();
  };
  const fadeOut = () => {    // Will change fadeAnim value to 0 in 3 seconds
    Animated.timing(fadeAnim, {toValue: 0, duration: 3000}).start();
  };
  return (
    <SafeAreaView style={styles.container}>
      <Animated.View
        style={[ styles.fadingContainer, {            // Bind opacity to animated value
            opacity: fadeAnim
          }]}>
        <Text style={styles.fadingText}>Fading View!</Text>
      </Animated.View>
      <View style={styles.buttonRow}>
        <Button title="Fade In View" onPress={fadeIn} />
        <Button title="Fade Out View" onPress={fadeOut} />
      </View>
    </SafeAreaView>
  );}const styles = StyleSheet.create({
  container: { flex: 1, alignItems: "center", justifyContent: "center"},
  fadingContainer: { padding: 20, backgroundColor: "powderblue" },
  fadingText: { fontSize: 28},
  buttonRow: { flexBasis: 100, justifyContent: "space-evenly",
                      marginVertical: 16}});export default App;