Just started the RN, met a lot of pits, record. Go to a problem and see issue! on GitHub.
Start command react-native Run-ios error1.: xcrun:error:unable to find Utility "instruments", not a developer tool or in PATHSolution Solutionssudo xcode-select -s /Applications/Xcode.app/Contents/Developer/Just a little bit of a run again.2. Bundling failed:Error:Unable to resolve module '. /
React NativeA set of cross-platform scenarios based on the node. JS model environment, using the react UI environment.The real-world scenario might be a node. JS-based model environment, based on each platform's UI environment.iOS Environment installation1. Install NVMHttps://github.com/creationix/nvm#installation2. Install nodeNVM Install 5.3.0NVM Alias Default node3. Installing WatchmanBrew Install Watchm
(1)Installation: NPM install-g REACT-NATIVE-CLIREACT-NATIVE-CLI is a command-line tool for developing react nativeThe above line of code will help you install the react-native command in terminal. Of course, you only need to run t
Environment constructionEnvironmental construction can refer to the RN official website, also can refer to the Chinese version: http://reactnative.cn/docs/0.45/getting-started.htmlIf you want to see the original installation process, you can look at the official address, this article is only my personal practice, and is limited to the window platform.Official address: https://facebook.github.io/react-native
01 Fundamentals and Development environment constructionA brief introduction to the React native architecture and principles of "recording" (16 minutes)"Recording" MacOS iOS environment build (19 minutes)"Recording" MacOS Android Environment build (17 minutes)"Recording" Windows Android Environment build (10 minutes)Use and precautions for "recording" Android devices (8 minutes)02JavaScript, Node, ES6 Found
Recently trying to use React Native to do something, found that the real machine debugging or some pits exist. IOS Real-Computer debuggingFirst, you have to make the debug computer and your phone must be in the same WiFi network below
Open the files for your IOS project AppDelegate.m
Change jsCodeLocation to localhost your computer's local area network IP address
In Xcode , select your pho
First, the problem descriptionIn the process of configuring the development environment in accordance with the React-native configuration tutorial on the WIN7 platform on the network, when the difficult step to react-native run-android, it is found that there has been an error, as follows:The error description informat
teach you how to build iOS React native environment in your MacHttp://www.cnblogs.com/damnbird/p/6074607.htmlpreparatory work1. You need a Mac computer. (This is not nonsense?) What I'm using is air~~ poor. )2. The environment in which I operate the computer system isVersion 3.xcode: 8.0 official editionRequired Software1.HomebrewHomebrew, a Package manager for Mac Systems, is used to install Nodejs and som
First step: Export JS bundle and picture ResourcesUnlike the packaged react Native Android app, we can't export react Native iOS apps with the command step. We need to package the JS part of the code with the image resource, and then add it to the iOS project through Xcode.command to Export JS bundleUnder the root dire
React native uses props for data transfer and communication between pages. In react native, there are two ways to store and pass data: props (attributes) and state (states), Where:
Props is typically specified in the parent component and, once specified, no longer changes in the lifetime of the specified compo
React native is the direct use of ES6 to write code, many new syntax can improve our productivityDeconstruction Assignmentvar { StyleSheet, Text, View} = React;This code is the new deconstruction (destructuring) assignment statement in ES6. Allows you to get multiple properties of an object and assign them to multiple variables using a single statement.The abo
application should be put together to write the above two, here just for the following and the new and old two ways to separate.In react native, the implementation style is just a small subset of the CSS, which uses the flex layoutThe idea of implementation is the same as above, but due to the view component in react native
Simulation machine debugging first to confirm that your environment variable path is not the ADB paths, ADB generally in the Android ADK directory under Platform-tools, Android directory by default in the C disk user/administrator (user default words ) in/appdata/If you're using the emulator that comes with Android studio, you can play it like this.RunC:\Users\Administrator\AppData\Local\Android\Sdk\emulator\emulator.exe-netdelay none-netspeed FULL-AVD NEXUS4 _api_27This command to ensure that t
Today to write a component, I believe many people will use the--viewstack.The Viewstack component is undoubtedly a very important component in the UI, but react-native is not embedded in it and needs to be implemented by the developer himself.The implementation principle is simple, is to display a sub-view according to the index, with a render can be done:1 render () {2 return (3 4 {
Pulltorefreshviewandroid LearningPulltorefreshviewandroid is a view that can place a single scrollable child view that, when the sub-view is shifted vertically (scrolly) to 0 o'clock, the drop-down can trigger a Onrefresh event.Before learning pulltorefreshviewandroid components, if there is not a certain basis, it is recommended to read the previous article, because, here I learn scrollview before the foundation, add pulltorefreshviewandroid function. The current code is as follows:' use strict
:
_handlemoveshouldsetpanrespondercapture2 (Event:object, Gesturestate:object,): boolean {
console.log ( Gesturestate.dy);
Console.log (' _handlemoveshouldsetpanrespondercapture2 ');
When you swipe to the top and continue to pull down,
return this._reachend2gesturestate.dy>=0;
}
Okay ~ Our first page of the parent control gets the swipe event, we continue to pull up, that is, to pull up the distance to our "Pull up View Details" component:_handlepanr
React is composed of Reactjs and React native, of which Reactjs is a front-end frame of Facebook open source, React native is the embodiment of Reactjs thought on native! JSX is not a new language, it's just a syntactic sugar that
Today is nothing, engaged in the react Native, also are just started to get, and did not feel it's strong, hey. Today is a demo can run. I hereby record the construction process and save it for future use.Hereby declare, only process, do not guarantee hundred percent success, because I was in the construction of reference to a lot of things related articles, but also please crossing from the discretion, La
Available style attributes in the Andriod React Native style sheet
After writing so many blog posts about Android React Native, we basically finished all the complicated things. Next, let's take a look at some simple things that are related to layout, that is, css styles, which css styles can be set for a View? Is the
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