react native udemy

React Native Knowledge 11-Props (properties) and State (State), react11-props I. Props (attributes) Most components can be customized using various parameters during creation. These parameters are called properties ). Props is specified in the parent component, and once specified, it will not change in the lifecycle of the specified component By using different attributes for customization in different scen

One: Props ( attribute)Most components can be customized with various parameters when they are created. These parameters, which are used for customization, are called Props (attributes). props is specified in the parent component and, once specified, is no longer changed in the lifetime of the specified component By using different property customizations in different scenarios, you can maximize the reuse of your custom components. Simply refer to This.props in the render function and then proce

. Misunderstanding of React's Virtual DOM. React never said "React is faster than native operation DOM." React's Basic thinking pattern is to re-render the entire application every time there is a change. If there is no Virtual DOM, the simple thing to do is to reset InnerHTML directly. Many people do not realize that in a large list of all the data has changed,

Simple use of react-native-vector-icons, images, buttons, label views, navigation bars, ICONS allows you to directly use the image name to load the three sides of the image. It is very convenient to use. You do not need to add various images in the project folder, saving a lot of space, let's take a look at how to use it! 1. First open terminal to go to our project folder (do not create a project, please re

1. If you succeed the success interfaceAccording to the official tutorial to set up the rn-android environment, you can put the demo run up;The local actual access address can refer to: http://localhost:8081/index.android.bundle?platform=android2. It may fail for the first time 1. A red interface appears, failed JS bundleSolution:Sometimes you run react-native run-android and find that you cannot run the de

PullToRefreshViewAndroid pull-down refresh component of React Native Control(1) Preface Today, let's take a look at the PullToRefreshViewAndroid pull-down refresh component and usage examples. The newly created React Native technology exchange group (282693535). You are welcome to join us! At the same time, on the left

The implementation of this tutorial is as follows:In order to achieve its fade-in/fade-out coverage, there is a Cancel button, here with a three-party component, you can first install:Three-party components address: Https://github.com/eyaleizenberg/react-native-custom-action-sheet (can see, you can also go directly to my steps)1. Run the project directory in Terminal: NPM install

Example code of the react native indexed city list component, reactnative City list selection is a common feature of many apps, such as a typical meitu app. So how can we implement React Native? To achieve the above results, you must first make a simple analysis of the composition of the interface, the interface data

Source Code /** * Sample React Native App * https://github.com/facebook/react-native */' use strict '; var React = require (' react-native '); var {appregistry, StyleSheet, Text, Vi

React Native developed Address Book application (using JavaScript to develop native iOS apps, Vczero) 0, Preface: Project Address: HTTPS://GITHUB.COM/VCZERO/REACT-NATIVE-APPWelcome to issues to discuss any issues, including "fitting room" ....I. Project introduction based on

Some time ago react Native for Android released, feel react Native will be more and more companies began to research, use. So Saturday also took time to build the iOS development environment, so that in the future to take advantage of leisure to learn.Needless to say, the following is a simple list of steps.1. Installi

React-native-page-listviewFor the Listview/flatlist package, it is convenient to load the network data by paging, also supports custom drop-down refresh view and pull-up to load more view. Compatible with high version flatlist and low version ListView. Components are automatically selected based on the version of the react-na