Using the cmd line you can send a command to the Android device. adb shell input text “RR” This command tells the Android device to type the character “R” twice which is the React Native command to Reload on Android. The adb shell command has many useful features many of which are described here: ADB … Read more
Yes there is. It’s called TextInput, the normal TextInput Component supports multiple lines. Just assign following properties to your TextInput Component multiline = {true} numberOfLines = {4} At the end you should have this: <TextInput multiline={true} numberOfLines={4} onChangeText={(text) => this.setState({text})} value={this.state.text}/> Source https://facebook.github.io/react-native/docs/textinput
This is due to not open port from your machine. Linux (Ubuntu) In Ubuntu Run In terminal sudo ufw status verbose To view open port if you cannot found 19000 port open then you need to open port using sudo ufw allow 19000/tcp and then again run sudo ufw allow 19001/tcp to serve http for … Read more
Stop remote JS debugging and then reload the app It will give you the appropriate error message, most likely missing some render on one of your components. That fixed it for me.
A React Native app is a compiled app that is running some Javascript. Whenever you build and run your React Native project, a packager starts up called Metro. You’ve probably seen this output in your terminal before, letting your know the packager is running. The packager does a few things: Combines all your Javascript code … Read more
Use StyleSheet.create to do style composition like this, make styles for text, valid text, and invalid text. const styles = StyleSheet.create({ text: { height: 40, backgroundColor: ‘white’, borderRadius: 5, padding: 10, }, textvalid: { borderWidth: 2, }, textinvalid: { borderColor: ‘red’, }, }); and then group them together with an array of styles. <TextInput style={[styles.text, … Read more
TL;DR Always use StyleSheet.create() when you can. The answer by Nico is correct, but there is more to it. To summarize: It validates the styles as mentioned by Nico As mentioned in the documentation: Making a stylesheet from a style object makes it possible to refer to it by ID instead of creating a new … Read more
I think the problem is in the SafeAreaView, for the new react-native version, it has migrated to react-native-community/react-native-safe-area-view. if you want to use SafeAreaView, you should install it first. the new use is like this: import SafeAreaView from ‘react-native-safe-area-view’; export default function MyAwesomeApp() { return ( <SafeAreaView style={{ flex: 1 }}> <View style={{ flex: 1 … Read more
in functional components import { useRef } from ‘react’; const scrollRef = useRef(); const onPressTouch = () => { scrollRef.current?.scrollTo({ y: 0, animated: true, }); } <ScrollView ref={scrollRef}> …your elements </ScrollView> <TouchableOpacity onPress={onPressTouch}></TouchableOpacity>
Easy peasy! From the root of your project just run: npm install moment –save Then you can import it in your code: import moment from ‘moment’; var now = moment().format(); The restrictions would be anything that tries to “reach out” to the browser (which doesn’t exist in this context). That’s why there’s polyfills for things … Read more