import React, { useEffect, useState, useRef } from 'react'; import { Animated, StyleSheet, Text, NativeModules, NativeEventEmitter, View } from 'react-native'; import { SafeAreaView } from 'react-native-safe-area-context'; const NativeDevLoadingView = NativeModules.DevLoadingView; const nativeDevLoadingViewEventEmitter = new NativeEventEmitter(NativeDevLoadingView); export default function DevLoadingView() { const [isDevLoading, setIsDevLoading] = useState(false); const [isAnimating, setIsAnimating] = useState(false); const translateY = useRef(new Animated.Value(0)).current; useEffect(() => { function handleShowMessage({ message }) { // "Refreshing..." is the standard fast refresh message and it's the // only time we want to display this overlay. if (message !== 'Refreshing...') { return; } // TODO: if we show the refreshing banner and don't get a hide message // for 3 seconds, warn the user that it's taking a while and suggest // they reload translateY.setValue(0); setIsDevLoading(true); } function handleHide() { // TODO: if we showed the 'refreshing' banner less than 250ms ago, delay // switching to the 'finished' banner setIsAnimating(true); setIsDevLoading(false); Animated.timing(translateY, { toValue: 150, delay: 1000, duration: 350, useNativeDriver: true, }).start(({ finished }) => { if (finished) { setIsAnimating(false); translateY.setValue(0); } }); } nativeDevLoadingViewEventEmitter.addListener('devLoadingView:showMessage', handleShowMessage); nativeDevLoadingViewEventEmitter.addListener('devLoadingView:hide', handleHide); return function cleanup() { nativeDevLoadingViewEventEmitter.removeListener('devLoadingView:showMessage', handleShowMessage); nativeDevLoadingViewEventEmitter.removeListener('devLoadingView:hide', handleHide); }; }, [translateY]); if (isDevLoading || isAnimating) { return (React.createElement(Animated.View, { style: [styles.animatedContainer, { transform: [{ translateY }] }], pointerEvents: "none" }, React.createElement(SafeAreaView, { style: styles.banner, edges: ['bottom'] }, React.createElement(View, { style: styles.contentContainer }, React.createElement(View, { style: { flexDirection: 'row' } }, React.createElement(Text, { style: styles.text }, isDevLoading ? 'Refreshing...' : 'Refreshed')), React.createElement(View, { style: { flex: 1 } }, React.createElement(Text, { style: styles.subtitle }, isDevLoading ? 'Using Fast Refresh' : "Don't see your changes? Reload the app")))))); } else { return null; } } const styles = StyleSheet.create({ animatedContainer: { position: 'absolute', bottom: 0, left: 0, right: 0, zIndex: 42, }, banner: { flex: 1, overflow: 'visible', backgroundColor: 'rgba(0,0,0,0.75)', }, contentContainer: { flex: 1, paddingTop: 10, paddingBottom: 5, alignItems: 'center', justifyContent: 'center', textAlign: 'center', }, text: { color: '#fff', fontSize: 15, }, subtitle: { color: 'rgba(255,255,255,0.8)', }, }); //# sourceMappingURL=DevLoadingView.ios.js.map