props in react native

1. Initialization of the project:React-native Init MyProject2. Start the project:CD myprojectreact-native startNew Open cmd window:React-native run-android3. Source Code Analysis:Attach Index.android.js file:/** Sample React Native App *https://github.com/facebook/

This weekend in Upyun's mobile salon, mentioned react Native, write a tutorial today.The first thing to do is to configure the environment, if not, perform the following work.1. Install Homebrew Open TerminalRuby-e "$ (curl-fssl https://raw.githubusercontent.com/Homebrew/install/master/install)"2. Install nodeBrew Install node3. InstallationBrew Install Watchman4. InstallationBrew Install Flow5. Implementat

This is the third article in layman's react native.1. Environment configuration2. My first Application Delete all the code in the Index.ios.js, why delete it? Because we are going to write an application from scratch ~ The best way to learn technology is to write it yourself, to see someone else's code 100 times the effect is not as good as your own write over the effect of the big ~The main things we

First, preface最近手头的工作繁多，有研究性的项目和系统研发，正好遇到同事离职，接手了框架的UI组件，不仅需要维护和填坑，还需要开发新的功能组件。因为身在H5-Hybird的框架部门，最近团队开始尝试使用React-Native来做些东西。之前也有过开发iOS App的冲动，学了点Object-c,这次正好借此机会进入App开发，以弥补自己在Native-App上的经验不足。Second, the Environment configuration(1)需要一台Mac(OSX),这个是前提，建议还是入手一本啦。(2)在Mac上安装Xcode,建议Xcode 6.3以上版本(3)安装node.js:https://nodejs.org/download/(4)建议安装watchman，终端命令：brew ins

1. View current reactnative version React-native–version 2. Update the global reactnative to the latest version sudo npm update-g react-native-cli 3. View version information for server-side reactnative NPM info react-native 4.

Explain how to use jest to test the react native component in the project, jestreact At present, there are many Javascript testing tools, but for React testing strategies, Facebook's standard ReactJs testing tool is Jest. Jest official website address: https://facebook.github.io/jest /. We can see that the official Jest website claims the Painless JavaScript Test

The first step . Initialize Child viewConstructor (props) {Super (props);This.state = {Ischange:true,　　　　Itemview: (}};The second step . In Render　　{this.state. Itemview}The third step . To dynamically set the state in a trigger eventLet Itemview;var ischange =!this.state.ischange;if (Ischange) {Itemview = (} else{Itemview = (};This.setstate ({Ischange:ischange,Itemview:itemview,});

, but on the real machine to see when the first time the picture playback will be very lag, this is because the picture loading into memory takes time, When we turn the picture when the picture has not been loaded, visually causing the effect of the lag.We initialize the image array to the outside of the screen (absolutely positioned), which is not very good. Render () { return ( 3. Carousel PicturesDefine picture Carousel function _loopSwitch one picture every 100 millisecondsWhen th

This site article is Li Himi original, reproduced must be clearly noted: Reprinted from "Black Rice gamedev Block" original link: http://www.himigame.com/react-native/2242.html The development of the game should be very clear, "brush screen" is how important. In fact, the development of the application is also the case, when the data of the component is modified, how to update the component to present

React-native, the Facebook open source project, has recently been a mess of fire, and it's cool to use node. js to write iOS and Android native interface code. Dynamic updates are supported, and AppStore commits are not rejected.Learning new technology is starting from the HelloWorld, we first make a HelloWorld look at react