reactjs-native

Can I disable a View component in react native?

由 孤街醉人 提交于 2020-01-11 20:11:37
问题 My app screen has a View component with few Text Inputs. I cannot disable text inputs. Is there a way that I can disable complete View? P.S.: By Disabling a View component I mean that the component renders but becomes unresponsive of any action. 回答1: You can use pointerEvents: <View pointerEvents="none"> ... </View> This will make the view unresponsive to touch events. 回答2: Adding to Kerumen's answer, in some rare cases: <View pointerEvents={myCondition ? 'none' : 'auto'}> ... </View>` You

Variable declaration in reactjs documentation [duplicate]

由 此生再无相见时 提交于 2019-12-25 14:07:30
问题 This question already has answers here : Javascript object bracket notation ({ Navigation } =) on left side of assign (4 answers) Closed 4 years ago . react.js documentation has following variable declarations: var { Image, StyleSheet, Text, View } = React; Could you tell what does it meant? Thank you. 回答1: This is the destructuring syntax, which is part of ES6. 回答2: It's a feature of ES6 called destructuring. Essentially the same as writing: var Image = React.Image; var StyleSheet = React

React Native - Port 8081 already in use, packager is either not running or not running correctly Command /bin/sh failed with exit code 2

由 穿精又带淫゛_ 提交于 2019-12-17 23:36:50
问题 I'm trying to get up and running with React Native and I am seeing the message below in Xcode: Port 8081 already in use, packager is either not running or not running correctly Command /bin/sh failed with exit code 2 I went to the React Native troubleshooting page and tried to kill the port 8081 processes, but I'm still getting the same issue. Here is a screenshot of what I am seeing in Xcode: Any help would be fully appreciated. 回答1: With the help of other people's answers. I tried the

Child parent component communication in ReactJS

由 点点圈 提交于 2019-12-09 11:13:31
问题 I like to send the attribute properties/props/state values from child component to parent component on an event fire onDrag . I could not find proper documentation on this. Here is my code: /*** @jsx React.DOM */ var APP=React.createClass({ getInitialState:function() { return {url:'http://www.youtube.com/embed/XGSy3_Czz8k'} }, handleDrag:function(vidurl) { alert(vidurl); //i need to get child component url here. }, render:function(){ return <div> <VideoFrame src={this.state.url} /> <hr/>

ReactJS toLowerCase is not a function

由 故事扮演 提交于 2019-12-07 02:30:17
问题 I am doing a comparison by converting my text to lowercase and comparing its index to -1, in order to have some value to the particular field in ReactJS , but I am getting this error in JavaScript console: Uncaught TypeError: props.filterText.toLowerCase is not a function var props = this.props; var rows = this.props.episodes .filter(function(episode){ return episode.title.toLowerCase().indexOf(props.filterText.toLowerCase()) > -1; }) .map(function(episode){ return <EpisodeRow key={episode

Can React Native app (means same codebase) be turned into mobile web app?

由 和自甴很熟 提交于 2019-12-02 16:21:20
问题 Whether the same REACT codebase can be shared across mobile web and mobile app? 回答1: Unfortunately, you cannot. React Native uses a bunch of pre-built components that are really just native iOS components wrapped in Javascript. For example, you could use <div> or <span> in React but in React Native you'd have to use <Text> , images can only be displayed in <Image> components, etc. There are also stricter limitations on what styles, data, or nested components each React Native component can

Can React Native app (means same codebase) be turned into mobile web app?

由 依然范特西╮ 提交于 2019-12-02 08:34:13
Whether the same REACT codebase can be shared across mobile web and mobile app? Unfortunately, you cannot. React Native uses a bunch of pre-built components that are really just native iOS components wrapped in Javascript. For example, you could use <div> or <span> in React but in React Native you'd have to use <Text> , images can only be displayed in <Image> components, etc. There are also stricter limitations on what styles, data, or nested components each React Native component can have. On a side note, trying to do this goes against the React philosphy -> 'Learn once, write anywhere'. You

React Native - Port 8081 already in use, packager is either not running or not running correctly Command /bin/sh failed with exit code 2

由 落花浮王杯 提交于 2019-11-28 18:25:55
I'm trying to get up and running with React Native and I am seeing the message below in Xcode: Port 8081 already in use, packager is either not running or not running correctly Command /bin/sh failed with exit code 2 I went to the React Native troubleshooting page and tried to kill the port 8081 processes, but I'm still getting the same issue. Here is a screenshot of what I am seeing in Xcode: Any help would be fully appreciated. jamiewq With the help of other people's answers. I tried the following steps. It worked for me and hopefully for others. It only works for iOS. Let’s say we want to

How to make a rest post call from ReactJS code?

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-11-26 11:52:44
问题 I am new to ReactJS and UI and I wanted to know how to make a simple REST based POST call from ReactJS code. If there is any example present it would be really helpful. 回答1: Straight from the React docs: fetch('https://mywebsite.com/endpoint/', { method: 'POST', headers: { 'Accept': 'application/json', 'Content-Type': 'application/json', }, body: JSON.stringify({ firstParam: 'yourValue', secondParam: 'yourOtherValue', }) }) (This is posting JSON, but you could also do, for example, multipart
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