How to Pass Parameters to screen in StackNavigator?

My React Native code: import React, { Component } from ‘react’; import { AppRegistry, ActivityIndicator, StyleSheet, ListView, Text, Button, TouchableHighlight, View } from ‘react-native’; import { StackNavigator } from ‘react-navigation’; import DetailsPage from ‘./src/screens/DetailsPage’; class HomeScreen extends React.Component { constructor() { super(); const ds = new ListView.DataSource({rowHasChanged: (r1, r2) => r1 !== r2}); this.state = … Read more

fetch response.json() gives responseData = undefined

When using fetch: fetch(REQUEST_URL, { method: ‘get’, dataType: ‘json’, headers: { ‘Accept’: ‘application/json’, ‘Content-Type’: ‘application/json’ } }) .then((response) => { response.json() // << This is the problem }) .then((responseData) => { // responseData = undefined console.log(responseData); }); }).catch(function(err) { console.log(err); }) .done(); The following works works, do you know why? : JSON.parse(response._bodyText) Answer The chaining … Read more

Input text doesn’t show keyboard on iOS simulator

I’m building an app and I need to use an input text. The problem comes when you tap on this input text, the keyboard doesn’t appear. I don’t know why, I don’t know what I’m doing wrong. It is supposed to be straightforward. Here is some of my code: <View style={ styles.storyContentContainer }> <TextInput ref=’username’ … Read more

How to solve (Could not initialize class org.codehaus.groovy.reflection.ReflectionCache) issue in react native

$ npx react-native run-android info Running jetifier to migrate libraries to AndroidX. You can disable it using “–no-jetifier” flag. Jetifier found 864 file(s) to forward-jetify. Using 4 workers… info Starting JS server… info Launching emulator… error Failed to launch the emulator. Reason: Could not start an emulator within 30 seconds. warn Please launch an emulator … Read more

Interspace between text Lines in React native

I need to change the space between lines in a text in a React Native for both android and iOS. This is the code in the styles pages: text: { color: ‘#C0C0C0’, fontSize: 18, textAlign: ‘justify’, } Answer Use lineHeight – text: { color: ‘#C0C0C0’, fontSize: 18, textAlign: ‘justify’, lineHeight: 30, }, AttributionSource : Link … Read more